Family Owned & Operated Since 1971• Bakersfield, CA
Flowmeters, level transmitters, level switches, and flow indicators
274 product families(290 total products)
Complete liquid-level measurement system — a 316 stainless steel snubnose AMETEK submersible transmitter paired with a fully calibrated, microprocessor-based meter/controller in a NEMA 4X housing, plus factory-installed waterproof cable. Choose the sensor model (575, 575 PB, 675 PB, 375, SST, or SDT), meter output (two or four relays, optional 4–20 mA), and lightning protection. The specific sensor range is included at no charge and cable length is quoted separately. Configure sensor, output, and lightning protection.
Digital meter/controller for AMETEK submersible level transmitters — a fully calibrated, microprocessor-based display with relays and optional analog retransmission. 110/220 VAC or 12/24 VDC input; display-only or two/four relays; optional 4–20 mA analog output; panel-mount or NEMA 4X weathertight housing; and optional lightning/surge protection on the signal and power lines. The engineering units shown and the paired transmitter model are specified at order. Configure power input, output, housing, and lightning protection.
Cost-effective submersible level transmitter for tanks, wells, and wastewater. 4–20 mA or 1–5 VDC output, ranges 0–6 to 0–300 PSI (to ~692 ft of water), 316L stainless steel diaphragm, a Delrin or stainless snubnose or flush sensing port, and vented polyurethane cable with a Viton seal. Cable length is specified separately. Configure sensing port, output, range, and electrical connection.
Submersible pressure transmitter for liquid-level measurement in tanks, wells, sumps, and wastewater. 12–28 VDC / 4–20 mA output, ranges 0–6 to 0–300 PSI (to ~692 ft of water), with a choice of snubnose, stainless snubnose, or protected flush-cage sensing port; 316 stainless steel or Hastelloy C diaphragm; and polyurethane or Teflon cable. NSF-certified and CSA intrinsically safe versions available. Cable length is specified separately. Configure sensing port, range, electrical connection, diaphragm, and fill.
Shark Cage submersible level transmitter — a rugged flush-diaphragm sensor inside a protective cage for debris-laden or high-flow service such as lift stations, storm water, and industrial sumps. CSA intrinsically safe. 12–28 VDC / 4–20 mA output, ranges 0–6 to 0–60 PSI, 316 stainless steel diaphragm, and vented polyurethane or Teflon cable. Cable length is specified separately. Configure pressure range and electrical connection.
Low-cost submersible level transducer for OEM and general level measurement. Wide choice of 4–20 mA or VDC outputs (including ratiometric), ranges 0–1 to 0–150 PSI, 316L stainless steel diaphragm, a Delrin or stainless snubnose, and vented polyurethane, polyolefin, or Teflon cable with a Viton seal. Optional on-board temperature output. Cable length is specified separately. Configure sensing port, output, range, electrical connection, and temperature option.
Slim-line submersible level transmitter — a narrow 0.75 in body for 1 in wells, piezometers, and tight boreholes. 11–30 VDC / 4–20 mA output, ranges 0–15 to 0–150 PSI (to ~346 ft of water), 316L stainless steel diaphragm, Delrin snubnose, and vented polyurethane cable with a Viton grommet. Cable length is specified separately. Select the pressure range; the remaining configuration is standard.
Intelligent sanitary silo and tank level transmitter. Configured to order — base list price shown.
Intelligent sanitary pressure and level transmitter. Configured to order — base list price shown.
4 modelsClick to compare & select →
2 modelsClick to compare & select →
Submersible hydrostatic level transducer. PUR cable base price shown; water-block PVC and FEP cable versions available. Configured to order.
Cage-protected submersible hydrostatic level transducer. PUR cable base price shown; FEP cable version available. Configured to order.
Intrinsically safe submersible hydrostatic level transducer for hazardous locations. Configured to order — base list price shown.
Integral orifice primary element for small line sizes (0.5 - 1.5 in. / 15 - 40 mm) — the orifice plate is permanently mounted in a precision-machined meter body, eliminating the centering uncertainty that plagues field-installed plates. Self-centering construction. Best for lab-scale, low-flow, sample-conditioning, and pilot-plant flow measurement where standard orifice fittings are too coarse. Pairs with 3051CFP / 3051SFP / 2051CFP assembled DP flow meters. Wide material variety for chemistry compatibility.
Standard concentric / eccentric / segmental / quadrant orifice plate — the workhorse of differential-pressure flow measurement. Precision-machined per ASME / ISO 5167 standards. Sized to your line size, beta ratio, and material requirements. Used between standard 1496 orifice flange unions for installation. Best for general-purpose flow measurement on clean liquids, gases, and steam where conditioning orifice (405C / 1595) special features aren't needed.
Orifice flange union — paired flanges with integrated tapping points for D-D/2 or flange-tap differential pressure connections. Designed to bolt around a 1495 orifice plate (or any standard orifice plate) and provide stable, leak-free pressure-tap take-offs to the DP transmitter. Slip-on or weld-neck flanges. ANSI 150 through 1500 lb pressure ratings. Carbon steel, stainless steel, or alloy options. The standard installation hardware for orifice-plate flow measurement.
Patented 4-hole conditioning orifice plate — four equally spaced orifices instead of the standard concentric single bore. The four-hole design conditions disturbed flow profiles (eddies, swirl, asymmetry from upstream pipe fittings) BEFORE measurement, eliminating the 10-50 diameters of straight run that ASME orifice plates require. Only 2 diameters upstream and 2 downstream needed — installs in tight piping where standard 1495 plates can't get enough straight pipe. Same materials and beta ratios as standard 1495 plates. Best for retrofit applications and crowded plants.
Compact primary element with three sensing technologies in one form factor — 405 (standard orifice plate), 405C (patented 4-hole conditioning orifice), or 405A (compact annubar / averaging pitot). Wafer-style installation between standard process flanges; no separate manifold or flange union required. The conditioning orifice (405C) variant requires only 2 diameters of straight pipe upstream and downstream — best in tight piping. Used as a low-cost, drop-in solution for closed-loop control, general-purpose flow monitoring, and lower-tier custody transfer.
Annubar averaging pitot tube primary element — measures the velocity-pressure profile across the full pipe cross-section by sensing at multiple insertion ports. Small in-pipe profile minimizes permanent pressure loss (energy savings) versus orifice plates. Pak-Lok or flanged hot-tap-installable for retrofit on operating lines. Used for liquids, gases, and steam in clean-process applications where a low-permanent-loss flow element is preferred over an orifice. Pairs with the 3051SMV / 4088 multivariable transmitters for compensated mass flow.
Severe-service annubar averaging pitot tube — same flow-sensing principle as the 485, engineered for extreme conditions: process temperatures to 1500°F (815°C), ANSI B16.5 2500# pressures, and aggressive media. Solid sensor construction (no welded joints in the wetted path) for failure-resistant operation in main-steam, hot-flue-gas, and high-pressure-pipeline service. Wide material range (316L, Hastelloy C-276, Alloy 800H) for chemistry compatibility. Used in power-station main-steam flow measurement and other applications beyond the 485's envelope.
Entry-level 80 GHz non-contacting radar for basic level and open-channel flow measurement. Compact NPT-mount transmitter, 4-20 mA HART output. Ideal for water/wastewater utility tanks, sump-pump level, basic process tanks where the 1408A would be over-spec. The lowest-cost Rosemount radar in the line.
Cost-effective 80 GHz non-contacting radar for basic level + flow applications in utilities, water-treatment, and general process. Compact form factor, 4-20 mA HART output, fixed-mount lens antenna. The entry-level 80 GHz Rosemount radar — when you need 80 GHz beam-angle advantage but don't need the 3408/5408 option flexibility.
Hygienic-process 80 GHz non-contacting radar level transmitter for Food, Beverage, Pharmaceutical, Biotech, and Cosmetics. Tri-Clamp, DIN-A, and DIN-B sanitary process connections with polished SST wetted parts (3-A and EHEDG compliant). Compact form factor (drop-in retrofit for legacy hygienic level instruments). Same 80 GHz beam-angle advantage as the 3408 / 1408A for tanks with internals.
High-frequency 80 GHz FMCW non-contacting radar level transmitter — narrow beam angle (typically 4°) eliminates interference from tank internals (agitators, ladders, heating coils) that confuses lower-frequency radars. Same antenna / process-connection / material variety as the 5408 but with the 80 GHz beam-shape advantage for challenging tank geometries. Both liquid and solids applications, including granular materials and aggregates where lower-frequency 26 GHz struggles.
Workhorse 26 GHz FMCW non-contacting radar level transmitter for critical liquid and solid level measurement. Continuous-sweep frequency-modulated radar delivers 3 mm accuracy across a wide measuring range. Multiple antenna options (cone, parabolic, process seal, lens) cover virtually every tank geometry and process compatibility — chemical-resistant PTFE-coated parabolic for aggressive media, cone antenna for short standpipes, planar antenna for hygienic. SIL 2/3 functional safety certified. HART or FOUNDATION Fieldbus output. The most-quoted Rosemount radar for refining, chemical, oil & gas storage, and bulk-solids level.
Compact version of the Rosemount 5900S tank-gauging radar — ±1 mm accuracy (slightly looser than the 5900S's ±0.5 mm) in a smaller, lower-cost form factor. SIL 2 certified, custody-transfer capable. Used in smaller tank farms, distribution terminals, and inventory-management applications where the 5900S would be over-spec. Same Tankbus FOUNDATION Fieldbus output. Pairs with the Rosemount 2240S for full level + temperature tank-gauging.
Premium tank-gauging radar level gauge — ±0.5 mm accuracy under custody-transfer conditions. Used in oil & gas storage terminals, petroleum products, LNG, and bulk chemical tank farms. SIL 2/3 certified, PTB / NMIM / GOST custody-transfer-approved (matched with Rosemount 2240S transmitter and 2410 Tank Hub). Tankbus FOUNDATION Fieldbus output. Multiple antenna types for different tank conditions — parabolic for long-range, cone for short standpipes, still pipe for floating-roof tanks.
Pre-assembled DP flow meter on the 2051C platform — combines a 2051C-platform DP transmitter, a Rosemount 405C compact conditioning orifice plate, and a 305 manifold in one factory-assembled, pre-calibrated package. No field assembly, no leak-checking, no separate piping for impulse lines. Drop in between standard process flanges and start measuring. Best for general-purpose closed-loop control and monitoring applications where the 3051C / 3051S premium platforms would be over-spec.
Pre-assembled DP flow meter on the 3051C platform — combines a 3051C Coplanar pressure transmitter, a 405C compact conditioning orifice plate, and a 305 manifold in one factory-assembled package. The 3051C platform adds graphical back-lit display option, Bluetooth configuration, multivariable inputs, and broader output protocol support (HART, WirelessHART, FOUNDATION Fieldbus). Available up to 12 in. (300 mm) line size for gas, liquid, and steam service. The midstream / downstream-grade DP flow meter for plants standardized on the 3051C transmitter.
Pre-assembled DP flow meter on the 3051C platform with a 1195 integral orifice primary element — engineered for highly accurate flow measurement in small line sizes (0.5 - 1.5 in. / 15 - 40 mm). Self-centering integral orifice plate eliminates the centering uncertainty of field-installed plates. Best for lab-scale, sample-conditioning, pilot-plant, and small-line process flow where standard 4-in.-and-up DP flow meters are too coarse. Same 3051C platform features as the 3051CFC: HART, Bluetooth, WirelessHART, FOUNDATION Fieldbus.
Pre-assembled DP flow meter on the 3051S Scalable platform with a 485 Annubar averaging pitot primary element — combines the lowest-permanent-pressure-loss flow technology with the highest-accuracy DP transmitter platform Rosemount makes. SIL 2/3 capable with the QS option. Best for high-pressure / large-line / energy-conscious flow measurement on clean liquids, gases, and steam — where the energy savings from low permanent pressure loss pay back the meter cost. Same 3051S platform features: extreme stability, advanced diagnostics, all output protocols.
Pre-assembled DP flow meter on the 3051S Scalable platform with a 405C compact conditioning orifice — drops in between existing flanges for best-in-class flow measurement in gas, liquid, and steam service. Same 3051S electronics platform as the 3051SFA / 3051SFP: extreme stability, SIL 2/3 capability with QS, advanced diagnostics, all output protocols. The compact-orifice variant for general-purpose measurement on lines too large for integral orifice (3051SFP) but where annubar (3051SFA) low-pressure-loss isn't needed.
Pre-assembled DP flow meter on the 3051S Scalable platform with a 1195 integral orifice primary element — multivariable, easy-to-install, engineered for highly accurate flow measurement in small line sizes (0.5 - 1.5 in. / 15 - 40 mm). Self-centering integral orifice eliminates centering uncertainty. Best for lab-scale, sample, and pilot-plant flow on clean fluids where the 3051S premium electronics platform is preferred (over the 3051CFP) for stability, diagnostics, and SIL 2/3 capability.
Fully AGA / API 14.3 compliant natural gas flow meter in a complete pre-assembled package — orifice meter tube + Simplex Fitting + Rosemount 4088 MultiVariable Transmitter. The Simplex Fitting allows quick orifice plate inspections and changes WITHOUT removing the meter from the line — no flange spreading, no gas leakage, no unscheduled downtime. Bureau of Land Management (BLM) accepted for federal and Indian leases. Pairs with 4088 MV transmitter for fully-compensated mass flow with Modbus or Emerson flow-computer output. The custody-transfer natural-gas DP-flow workhorse.
Pre-assembled DP flow meter for harsh-environment continuous service — combines a 1595-style conditioning orifice plate, integrated impulse lines (no separate piping to install), a 3051S or 3051SMV transmitter, a 305 manifold, and an optional 214C RTD temperature sensor in one factory-assembled, configured, and leak-checked package. Roddable impulse lines let operators clear blockages without disconnecting any piping. Conditioning Orifice Technology eliminates the straight-run requirement, allowing installation at grade level or in difficult piping configurations. Operating range 2-6 in. line size, ANSI 900 max, -20°F to 850°F.
Compact, low-cost vibrating fork level switch — point-level detection for liquids using fork vibration frequency change when wet vs dry. Single direct-load relay output (DPCO or PNP/NPN), no moving parts, no calibration, immune to flow turbulence and aerated/foaming liquids that defeat float and capacitance switches. Best for high/low alarms, pump dry-run protection, and overfill prevention on storage tanks. Common process connections (NPT, BSP, Tri-Clamp, flanged) and fork extensions to 4 m. The workhorse Rosemount level switch for general-process duty.
Mid-tier vibrating fork level switch — same fork-resonance principle as the 2110, with expanded electronics options. Choose direct-load relay, 8/16 mA load-driven output for two-state PLC inputs, NAMUR-namur compatibility, or remote-electronics housing. Magnetic test point lets technicians verify operation without process intervention. Used where the 2110's basic relay isn't sufficient — load-driven inputs, harsh ambient, hazardous-area installations.
HART-enabled vibrating fork level switch — same proven fork-resonance technology as the 2110/2120, with two-wire 4-20 mA + HART communication for remote configuration, diagnostics, and trending of fork frequency. Continuously reports fork health (build-up detection, corrosion warning) so a maintenance team can replace before the switch fails. Best for plants with HART-aware asset-management systems (AMS, FieldComm).
Functional-safety-certified vibrating fork level detector — same fork-resonance core as the 2130 with full IEC 61508 SIL 2 (single) / SIL 3 (redundant) certification for safety-instrumented systems. Best for overfill prevention, dry-pump protection, and other safety-critical applications where the underlying detection technology must carry an independent third-party safety certification. HART or two-channel digital output with diagnostic coverage.
WirelessHART-powered vibrating fork level switch — same proven fork-resonance technology as the 2110/2120 family but with battery-powered WirelessHART radio in place of wired output. Eliminates cable and conduit runs for remote level monitoring on tanks far from the control room. 7+ year battery life under typical update rates. Pairs with an Emerson Wireless 1410S Gateway for the WirelessHART network backhaul. Common application: tank-farm overfill alarms where wired installation is cost-prohibitive.
TRL2 Field Bus Modem — connects the TRL2 fieldbus from Rosemount Tank Gauging field devices (or the 2460 System Hub) to the TankMaster PC in the control room. Choose RS232 or USB interface to the PC. Used in service / maintenance, software configuration, and small-scale tank gauging installations where direct PC-to-fieldbus communication is needed without a full system hub. Compact form factor, intrinsically safe options for hazardous-area access.
Intrinsically safe back-lit field display for tank gauging — presents tank data (level, temperature, pressure, total observed volume, density, water level) directly at the tank with excellent readability. Hinged lid protects the LCD from sunlight. Mount on the tank roof or at the foot of the tank. Configuration via local graphical menu and built-in buttons OR remotely from TankMaster. Wide ambient temperature range (-50°C to +70°C). Low power consumption (9-32 VDC, 30 mA nominal). Used wherever an operator needs immediate visual access to live tank-gauging data without a control-room trip.
All-in-one tank monitoring hub — integrates a data concentrator, display, and communication unit into a single device for simplified inventory monitoring across multiple tanks. Connects up to eight HART-enabled level / pressure / temperature transmitters via HART Multidrop on a single twisted-pair cable (replacing eight separate cable runs). Outputs to TankMaster, TankMaster Mobile, or third-party hosts via Modbus TCP/IP and HART-IP. Designed for chemical, metals & mining, and food & beverage industries where the full 2410 / 2460 / Control Cabinet stack would be over-spec. The simpler, lower-cost alternative for inventory-management-focused tank monitoring.
Tank Hub — handles data communication between Rosemount field devices on one tank and the host (TankMaster or DCS). Supports an exhaustive list of legacy protocols for retrofit installations (TRL2 Modbus, RS485, 4-20 mA HART, Enraf, L&J Tankway, Varec Mark/Space, Whessoe, GPE, Sakura, Tokyo Keiso, WirelessHART). Powers Rosemount field devices on a FISCO-compliant intrinsically safe Tankbus. Two SIL-certified relays for high/low alarms. Integral digital read-out for level, ullage, signal strength, volume, average / spot temperatures, pressures, density, and flow. Single-tank or multi-tank versions. Up to 16 field devices and 10 tanks per multi-tank version.
System Hub — data concentrator that aggregates real-time tank-gauging data from multiple 2410 Tank Hubs (or other field-device sources) and bridges it to TankMaster Inventory Management Software and/or a host DCS. Up to 64 tanks per hub. Eight configurable host/field-device communication ports. Three Ethernet ports (one Modbus TCP host, one redundancy, one service). Supports system redundancy and emulation of other vendors' systems (Enraf BPM, etc.) for legacy retrofits. Monitors floating-roof tank conditions for hazardous-condition prevention. The backbone of mid-to-large Rosemount tank-gauging installations.
Process control unit with built-in tank-volume / flow / pump-control / totalization / data-logging wizards — programmed via intuitive on-screen guides without requiring custom PLC logic. Comprehensive control functionality for 4-20 mA or HART-compatible transmitters (e.g., the Rosemount 1208 Level + Flow Transmitter). Tank-volume wizard supports strapping-table-based volume calculation from level. Differential calculations across two transmitter inputs. Common applications: pump start/stop on level set-points, flow totalization for transfer billing, leak-detection differential between supply and discharge. The right choice when full TankMaster + 2460 hub system is over-spec but more than a basic indicator is needed.
16 A rotary power safety switch with front control handle — used to isolate power to Rosemount tank-gauging equipment for safe maintenance access. Low copper content aluminium alloy body and cover, stainless steel closing screws and fixing lugs, internal and external earth screws, RAL 7035 polyester coating. Supplied with two galvanized steel adapters.
Tankbus segment coupler with integrated user-selectable on/off termination and adjustable spur short-circuit protection (max 60 mA/spur). Trunk input, trunk output, 6 spurs (M20 x 1.5). Wall-mounted, delivered with junction box. Die-cast aluminum housing, IP 67. Entity and FISCO compliant.
Tankbus segment terminator — prevents reflections and signal distortions on a Rosemount Tankbus FOUNDATION Fieldbus segment. External installation, mounted on a junction box or transmitter field housing. ½-in. NPT male thread. Protection degree IP 67. Entity and FISCO compliant.
Heavy-duty rotating-paddle point-level switch for bulk solids — a small motor turns a paddle inside the silo; when product covers the paddle the motor stalls and the switch trips. Works on virtually all bulk solids regardless of dielectric, electrostatic charge, or dust. Withstands extreme temperatures up to 1100°C and demanding mechanical conditions (heavy product loads, abrasive media). Best for cement, aggregates, ash, grain, and any bulk solid where vibrating or capacitance sensors fail. Vertical, horizontal, or oblique mounting.
Cost-effective vibrating-fork point-level switch for fine-grained and powdered solids — flour, cement, sand, plastic pellets, grain. Fork resonates at a known frequency in air; when product touches the fork the frequency drops and the switch trips. No moving parts, no calibration, immune to dust and electrostatic charge. Operates up to 150°C. Best for storage and process vessels where the 2501 paddle is over-spec and the 2521 sensitivity isn't required.
High-sensitivity variant of the 2511 vibrating fork — same proven fork-resonance technology, tuned for extremely low-density bulk media (below 0.3 lb/ft³ / 5 g/L). Catches the fork frequency change even when very light powders or fluffy materials touch it. Best for low-density polymers, fluffy fines, light insulation media, and other powders where the standard 2511 might miss the trigger. Operates up to 150°C. Same process connections, fork extensions, electronics options, and approvals as the 2511.
Vibrating-rod (single-tine) point-level switch for fine grains and powders — alternative to the tuning-fork 2511/2521 for media that bridge between fork tines. The single-rod geometry is harder to bridge, more reliable in clumpy or sticky powders. Operates up to 150°C. SST construction, suitable for hazardous and dusty environments. Best for fine powders prone to bridging, light solids, and any storage vessel where fork-style switches have given trouble.
RF-capacitance point-level switch for low-dielectric solids and extreme-condition installations — measures the capacitance change between probe and silo wall when product covers the probe. Active Shield Technology prevents false trips from material build-up on the probe (the most common failure mode of older capacitance switches). Withstands up to 500°C, high mechanical stress, and high tensile forces. Best for low-dielectric materials (some plastics, oils on solids, low-conductivity powders) and high-temperature applications where vibrating-fork/rod 2511/2521/2535 fall outside their thermal envelope.
Cable-deployed wireless submersible level transmitter — slim 0.75-in (20 mm) diameter piezoresistive sensor lowers down a marked cable to the tank/sump bottom and reports hydrostatic head pressure (level) wirelessly via the WirelessHART radio in the surface-mounted 3051S transmitter. SmartPower battery delivers up to 10-year maintenance-free operation; battery replacement does NOT require removing the transmitter from service. Optional LCD on the surface unit shows level + sensor temperature. Best for sumps, water wells, lift stations, condensate collection tanks, and any retrofit application where running conduit to a tank-bottom port is impractical.
Premium hydrostatic level transmitter — leverages the 3051S Scalable pressure-platform with Tuned-System diaphragm-seal capability for both pressurized and vented tank level measurement. Wide pressure envelope (up to 10,000 psi / 689 bar) and process temperature range (-157°F to 770°F / -105°C to 410°C) depending on fill fluid. Supports direct-mount, remote-mount, balanced systems, and Tuned-System assemblies. SIL 2/3 certified. 4-20 mA HART, WirelessHART, or FOUNDATION Fieldbus output. Best for tall tanks with extreme process temperatures, hot/aggressive media, or tank-bottom installations where the 1199 / 1299 diaphragm seals isolate the transmitter electronics from the process.
Newer 4051S-platform pressure-based level transmitter — same direct-mount / remote-mount / balanced / Tuned-System level capabilities as the 3051SAL but on the modernized 4051S electronics platform. Industry-leading 20-year warranty and 20-year stability. Built-in Bluetooth for safer-from-distance configuration without entering the hazardous area. Built-in advanced diagnostics. The right choice for new builds (vs the established 3051SAL for retrofits matching existing 3051S installed base).
Standard-grade guided wave radar level transmitter — same probe technology as the 5300 but with a streamlined option matrix and cost-effective pricing for general-process applications. HART 4-20 mA output, single or dual rod / cable probes, all common process connections. The workhorse Rosemount GWR for liquid-storage tanks, bypass chambers, and stilling wells where 5300's premium feature set would be over-spec.
Variant of the 3300 GWR specifically tuned for level AND interface measurement on two-phase liquids (oil/water interfaces, settling tanks, separator vessels). Same probe and electronics platform as the 3300; interface-detection firmware identifies both the upper-product level AND the lower-fluid interface in one signal. Reports both as separate 4-20 mA outputs or HART variables. Best in applications where you previously needed two separate level transmitters (or a displacer + a level transmitter).
Long-range variant of the 3301 — extends interface and level measurement to longer probes (up to 50 m / 164 ft cable) for tall vessels and deep wells. Same level + interface firmware as 3301 but with the cable-probe range advantage. Used in deep settler tanks, oil-water separator vessels, and any application where the 3301's standard range falls short.
WirelessHART-powered GWR level transmitter — same proven probe technology as the 3300 family but with a battery-powered WirelessHART radio in place of the wired 4-20 mA loop. Eliminates cable runs for remote level monitoring on tanks too far from a control room for cost-effective wired installation. 7+ year battery life under typical update rates. Pairs with an Emerson Wireless 1410S Gateway for the WirelessHART network backhaul.
Premium guided wave radar level transmitter — contact-style radar that fires a microwave pulse down a single rod, double rod, or coaxial probe to measure level by time-of-flight. Immune to vapor, turbulence, foam, and dielectric variability that defeat non-contact radar. Best for difficult liquids (low-dielectric oils, two-phase interfaces, vaporous chambers), bypass chambers, and stilling-well installations. Single or dual probe options, multiple probe materials (316L, Hastelloy, PTFE-coated), wide cable/rod length range. HART or FOUNDATION Fieldbus output. SIL 2/3 certified.
Standalone electronics module that drives the entire Rosemount gas-ultrasonic line — the 3412 / 3414 / 3415 / 3416 / 3417 / 3418 in-line meters and a retrofit upgrade for older Daniel-branded gas ultrasonic spool pieces. Next-generation processors deliver superior low-flow accuracy and linearity throughout the calibrated flow range. Quick local access to 10 scrolling variables on an optional LED display. True 100Base-T Ethernet connectivity. Smart Meter Verification Basic feature included in current firmware. Operating range -40°C to +85°C; -20°C/-50°C low-temp storage with T-21/T-22 transducers.
Cost-effective two-path gas ultrasonic flow meter for non-fiscal allocation and check metering — fully redundant dual-bounce path design with field-proven T-21 transducers engineered for wet, rich, and/or dirty gas applications. AGA 8 Compressibility and AGA 10 Speed of Sound auto-calculations. MeterLink software gives operators easy access to real-time diagnostics and detection of flow disturbances. Field-replaceable transformer module simplifies maintenance. Best for upstream gas allocation, well-pad flow, and check-meter installations where the 4-path 3414 SeniorSonic is over-spec.
SeniorSonic four-path gas ultrasonic flow meter — field-proven British Gas chordal design with ultra-fast Rosemount 3410 series electronics. Four chordal measurement paths cover the full velocity profile, delivering the sampling speed needed for fast-changing flow dynamics. Used for fiscal custody transfer of natural gas, line balancing, and any high-precision gas measurement application below the 8-path 3418's range. SIL 2 capable. AGA 9 / API Chapter 14.10 compliant. T-20, T-21, or T-22 transducer options for sweet, wet/rich, or cryogenic gas service.
4+1 dual-configuration gas ultrasonic flow meter — combines the 3414 SeniorSonic 4-path chordal British Gas design (custody transfer) with a single-path reflective check meter in one body. The 4-path measures custody-grade fiscal flow; the +1 path provides continuous real-time measurement verification and early warning of process drift, contamination, or meter deviations. Same single-spool installation as a 3414. Used wherever you want fiscal accuracy plus built-in self-checking for high-confidence custody transfer.
4+2 dual-configuration gas ultrasonic flow meter — combines a 4-path SeniorSonic chordal British Gas custody meter with a 2-path reflective check meter in one body. The +2 reflective check provides continuous independent verification of custody readings. More robust than the 3415's +1 check (two independent comparison paths instead of one). Best when fiscal-transfer reliability requires more than one redundant check path but the full 4+4 of the 3417 is over-spec.
Fully redundant 4+4 gas ultrasonic flow meter — two complete field-proven 4-path British Gas chordal meters in one body. Both sets are individually OIML R137 1&2 Accuracy Class 0.5 certified, providing matching custody-transfer accuracy from each independent set. Used at high-stakes fiscal transfer points where a single 4-path failure cannot cause loss of custody data — pipeline interconnects, large gas storage transfer, LNG export terminal headers. The most rigorous gas-USM redundancy short of two separate spools.
Eight-path gas ultrasonic flow meter — combines two interlocked 4-path British Gas design meters in one flow meter body. The second set of chords is the mirror image of the first, allowing the meter to mathematically cancel out the effects of swirl and cross-flow. OIML 0.5 Accuracy Class certified for fiscal custody transfer. Requires only five diameters of straight run upstream and no flow conditioner — the lowest installation footprint in fiscal gas measurement. Best for sophisticated fiscal applications: international interconnects, high-pressure pipelines, fiscal export terminals where every fraction of a percent matters.
Standalone electronics module that drives the entire Rosemount liquid-ultrasonic line — the 3812 / 3814 / 3818 in-line meters and the upgrade path for older Daniel-branded liquid ultrasonic spool pieces. Dual ultra-stable processors generate real-time predictive diagnostics that detect blockages, abnormal flow profiles, and sensor degradation upstream of the meter. HART, Modbus RTU, and Modbus TCP outputs. Used as a replacement for failed electronics in installed meters or as the foundation for a new build of any 3810-series spool. Bracket-mount or integral-mount versions.
Economical two-path liquid ultrasonic flow meter for check metering and allocation — two mid-radius parallel-plane measurement paths minimize uncertainty from disturbed flow profiles. Four transducers measure transit-time difference between upstream and downstream paths. Best for check metering downstream of custody-transfer 3814 / 3818 installations, allocation measurement on multi-product blends, or as a primary meter where 4-path 3814 accuracy is over-spec. No moving parts, full-bore meter, virtually no pressure drop. Pairs with the Rosemount 3810 Series Electronics module.
Premium four-path liquid ultrasonic flow meter — engineered for custody-transfer accuracy of liquid hydrocarbons per API Chapter 5.8 and OIML R117. Four measurement planes (eight transducers) with parallel-plane geometry minimize measurement uncertainty across the full flow range. Wide rangeability, exceptional linearity, and full-bore zero-pressure-drop design make it the workhorse for refining, pipeline custody transfer, and high-throughput tanker-loading applications. Same 3810 series electronics platform as the 3812 / 3818. SIL 2 capable.
Fully redundant dual four-path liquid ultrasonic flow meter for cryogenic LNG custody transfer and dynamic metering — two complete sets of 4-path electronics + transducers in one spool, providing the most rigorous redundancy in the industry for marine LNG transfer. Multi-plane interlocked British Gas meter geometry delivers ±0.15% factory-proven linearity and ±0.027% meter-factor uncertainty. Cryogenic-rated SST body and seals tolerate -162°C LNG. Full-bore design eliminates pressure drop and the risk of LNG flashing. Used in marine custody transfer (loading and unloading), fiscal metering, line balancing, allocation, and check metering on land-based LNG terminals. Same 3810 series electronics platform.
Flanged-body magnetic flow meter sensor — workhorse Rosemount mag flow primary element. All-welded sensor body for long-life pressure containment. Wide line-size range (½ to 36 inches) and full flange-rating coverage (ANSI 150# / 300# / 600#, EN equivalents). Lining options for almost any process: PTFE for chemicals, ETFE for high-temperature, Polyurethane for abrasive slurries, Neoprene for water/wastewater, Linatex for severe abrasion. Electrode materials from 316 SST workhorse to Hastelloy / Tantalum / Platinum / Titanium for corrosion-critical service. Pairs with the Rosemount 8712EM transmitter for the standard mag-flow installation.
Wafer-body magnetic flow meter sensor — same all-welded mag-flow architecture as the Rosemount 8705 but in a compact wafer body. Sandwiches between the customer's existing flanges (no integral flanges on the meter), reducing weight and cost vs flanged 8705. Best for line sizes ½ to 8 inches. Same liner / electrode / pairing options as 8705. Pairs with the Rosemount 8712EM transmitter.
Mag-flow transmitter electronics — pairs with any Rosemount 8705 / 8711 / 8750W mag-flow sensor. Intuitive Local Operator Interface (LOI) with dedicated keys for instant access to common parameters. HART 4-20 mA output (workhorse), FOUNDATION Fieldbus and PROFIBUS PA also available. Wall, pipe, or panel mount. Wide hazardous-area cert matrix (FM, CSA, ATEX, IECEx — both IS and XP variants). 90-250 VAC or 12-42 VDC supply. Smart Meter Verification (SMV) diagnostic confirms sensor health without removing from service.
Magnetic flow meter purpose-built for utility-water and wastewater service. Same all-welded sensor body as the 8705/8711 but with a streamlined option matrix optimized for water-utility quote velocity and OPEX-friendly pricing. AWWA-compliant materials, NSF-61 certified for potable-water contact, integrally-mounted transmitter (eliminating remote-mount cost and complexity). Line sizes 1 to 36 in. The water-industry workhorse for billing, custody, distribution-loss measurement, and pump-station flow.
Specialty mag-flow transmitter electronics tuned for slurry applications — mining, mineral processing, paper pulp, dredging, and any service where the process noise from suspended solids would overwhelm a standard mag-flow signal. Combines high-frequency dual-coil drive with proprietary noise-rejection algorithms (peak-to-peak signal averaging, automatic noise-burst rejection). Pairs with the Rosemount MS Magnetic Slurry Sensor for a complete slurry-rated assembly. HART or FOUNDATION Fieldbus output. The slurry industry workhorse where 8712EM + 8705 would lose lock.
Specialty mag-flow sensor purpose-built for slurry service. Heavy-duty electrode mounting + high-resistance liner combinations (Polyurethane, Neoprene, Linatex) deliver the wear life that pulp/paper, mining, mineral processing, and dredging require. Pairs with the Rosemount 8782 Slurry Transmitter for complete signal-noise rejection. Full flanged ANSI / DIN coverage from 1 in to 48 in. The slurry-industry workhorse alternative to the 8705/8711 standard sensors.
Redundant-sensor vortex flow meter — two independent vortex sensors and electronics in one meter body provide functional safety integrity (SIL 2 / SIL 3) for Safety Instrumented System (SIS) applications. Each sensor is independently powered, signal-conditioned, and output-isolated. Used in burner-management systems, emergency shutdown trip loops, overpressure protection, and any SIS loop where a spurious trip or a missed trip carries safety / production / regulatory consequences. Same gasket-free 8800 platform, same multivariable mass-flow capability, doubled diagnostic confidence.
Gasket-free, all-welded vortex flow meter — eliminates the leak points that traditional gasketed vortex bodies suffer in steam, condensate, and high-temperature service. Isolated sensor design provides flow + temperature measurement in one device. Multivariable output (mass + volumetric + temperature). Wide line size range (½ to 12 in / DN15 to DN300). HART or FOUNDATION Fieldbus output. The vortex workhorse for steam, condensate, low-viscosity liquids, and gas service where DP / Coriolis would be over-spec.
Reducer-body vortex variant of the Rosemount 8800 — the meter integrates concentric reducers on each end to accurately measure flow rates BELOW the standard turn-down range while maintaining the same face-to-face dimensions as the larger flanged 8800. Ideal for retrofitting an existing larger-line installation that's now running below the standard meter's turndown threshold (low-flow steam, low-flow gas, off-design operation). Same gasket-free, all-welded body and same multivariable mass-flow capability as the 8800 Flanged.
Visual magnetic level indicator (MLI) — chamber with a magnet-equipped float that rises and falls with the fluid level, plus a strip of color-flipping flag indicators on the chamber exterior. Visible from up to 100 ft (30 m) away. Ideal for high-temperature, high-pressure, and corrosive applications where you want unambiguous visual indication of level (and interface, if dual-magnet float). Non-invasive — no instrument needs to penetrate the process. Designed to ASME B31.3; chambers hydrostatically tested to 1.5× MAWP. Works standalone or paired with the 9935 bypass chamber and externally mounted Rosemount transmitters / switches for a complete, redundant level solution.
Self-contained bypass chamber (also called a bridle) for externally mounting Rosemount level instruments to a vessel. Allows process isolation for live maintenance — replace the 5300 GWR / 5408 radar / 2120 fork switch / 9930 MLI without shutting the vessel down. Optimized for the 5300 Guided Wave Radar and the non-contacting radar transmitters (5408 / 3408). Designed to ASME B31.3 Process Piping Code; ASME B31.1 Power Piping Code optional. Carbon steel or stainless steel construction standard. Hydrotested to 1.5× MAWP before shipment. The result of 35+ years of bypass-chamber engineering experience.
G 1/2″ · NO/NC, NPN · Connector, M12 × 1
G 1/2″ · NO/NC, PNP · Connector, M12 × 1
54 x 20.3 x 5.5 mm, QF5.5 · 10 mm · NO contact, NPN · Cable
54 x 20.3 x 5.5 mm, QF5.5 · 10 mm · NO contact, NPN · Cable
54 x 20.3 x 5.5 mm, QF5.5 · 10 mm · NO contact, NPN · Cable
54 x 20.3 x 5.5 mm, QF5.5 · 10 mm · NO contact, PNP · Cable
54 x 20.3 x 5.5 mm, QF5.5 · 10 mm · NO contact, PNP · Cable
54 x 20.3 x 5.5 mm, QF5.5 · 10 mm · NO contact, PNP · Cable
54 x 20.3 x 5.5 mm, QF5.5 · 10 mm · NC contact, NPN · Cable
54 x 20.3 x 5.5 mm, QF5.5 · 10 mm · NC contact, NPN · Cable
54 x 20.3 x 5.5 mm, QF5.5 · 10 mm · NC contact, PNP · Cable
54 x 20.3 x 5.5 mm, QF5.5 · 10 mm · NC contact, PNP · Cable
54 x 20.3 x 5.5 mm, QF5.5 · 10 mm · NO contact, PNP · Cable
Capacitive Sensor
Flow monitoring · liquids · Immersion · Tri-Clamp 1 1/2″
Flow monitoring · liquids · Immersion · Tri-Clamp 2″
Flow monitoring · liquids · Immersion · Varivent
Flow monitoring · liquids · Immersion · G 1/2''
Flow monitoring · liquids · Immersion · G 1/2''
Flow monitoring · liquids · Immersion · G 1/2''
Flow monitoring · liquids · Immersion · G 1/2''
Flow monitoring · liquids · Immersion · G 1/2''
Flow monitoring · liquids · Immersion · G 1/4''
Flow monitoring · liquids · Immersion · G 1/4''
Flow monitoring · liquids · Immersion · G 1/4''
Flow monitoring · gases · Immersion · G 1/2” long version
Flow monitoring · gases · Immersion · G 1/2” long version
Flow monitoring · liquids · Immersion · G 1/2” long version
Flow monitoring · liquids · Immersion · G 1/2” long version
Flow monitoring · gases · Immersion · G 1” female thread DIN 3852
Flow monitoring · gases · Immersion · PVC flange (included in delivery)
Flow monitoring · gases · Immersion · PVC flange (included in delivery)
Flow monitoring · gases · Immersion · PVC flange (included in delivery)
Flow monitoring · gases · Immersion · M18 × 1
Flow monitoring · gases · Immersion · M18 × 1
Flow monitoring · gases · Immersion · G 1/4'' female thread
Flow monitoring · gases · Immersion · 1/4” NPT female thread
Flow monitoring · gases · Immersion · M18 × 1
Flow monitoring · gases · Immersion · M18 × 1
Flow monitoring · gases · Immersion · M18 × 1
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · Tri-Clamp 1 1/2″
Flow monitoring · liquids · Immersion · G 1/2''
Flow monitoring · gases · Immersion · G 1/2''
Flow monitoring · liquids · Immersion · G 1/2''
Flow monitoring · gases · Immersion · G 1/2''
Flow monitoring · liquids · Immersion · G 1/2''
Flow monitoring · liquids · Immersion · G 1/4''
Flow monitoring · liquids · Immersion · G 1/4''
Flow monitoring · liquids · Immersion · G 1/4''
Flow monitoring · gases · Immersion · G 1/2” long version
Flow monitoring · liquids · Immersion · G 1/2” long version
Flow monitoring · gases · Immersion · G 1/2” long version
Flow monitoring · gases · Immersion · G 1/2” long version
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · gases · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 1/2″ NPT
Flow monitoring · liquids · Immersion · 3/4″ NPT
Flow monitoring · liquids · Immersion · 3/4″ NPT
Flow monitoring · liquids · Inline · ¼″ tube connection
Flow monitoring · liquids · Inline · ¼″ tube connection
Flow monitoring · liquids · Inline · G 1/4''
Flow monitoring · liquids · Inline · G 1/4''
Flow monitoring · Inline · G 3/8''
Flow monitoring · liquids · Inline · 3/8'' Swagelok
Flow monitoring · liquids · Inline · 3/8'' Swagelok
Flow rate measurement · liquids · Inline · 1/2″ Swagelok
Flow monitoring · liquids · Inline · G 1/4''
Flow monitoring · gases · Inline · G 1/4''
Flow monitoring · liquids · Inline · G 1/4''
Flow monitoring · liquids · Inline · G 1/4''
Flow rate measurement · liquids · Inline · 3/4″ Swagelok
Flow monitoring · liquids · Inline · G 1/2''
Flow monitoring · liquids · Inline · 1/8″ NPT
Flow monitoring · liquids · Inline · 3/4″ NPT
Flow Monitoring — Inline Sensor with Integrated Processor
Flow monitoring · liquids · Inline · 3/4″ NPT
Flow monitoring · liquids · Inline · Barrel 4 mm
Flow monitoring · liquids · Inline · Barrel 6 mm
Flow monitoring · liquids · Inline · Barrel 4 mm
Flow monitoring · liquids · Inline · Barrel 4 mm
Flow Monitoring — Inline Sensor with Integrated Processor
Flow monitoring · liquids · Inline · M16 × 1.5
Flow monitoring · liquids · Inline · G 1/4''
Flow monitoring · liquids · Inline · M16 × 1.5
Flow monitoring · liquids · Inline · G 1/4''
Flow monitoring · With display (external probe)
Flow rate measurement · liquids · Inline · 3/4″ Swagelok
Flow rate measurement · liquids · Inline · 3/8'' Swagelok
Flow rate measurement · liquids · Inline · 1/2″ Swagelok
Flow rate measurement · liquids · Inline · 1/2″ Swagelok
Flow rate measurement · liquids · Inline · 1/2″ Swagelok
Flow rate measurement · liquids · Inline · Compression fittings for pipes Ø 10 × 1 (EN10305-1)
Flow rate measurement · liquids · Inline · 3/4″ Swagelok
Flow rate measurement · liquids · Inline · 3/4″ Swagelok
Flow rate measurement · liquids · Inline · 3/4″ Swagelok
Flow rate measurement · liquids · Inline · 3/4″ Swagelok
Flow Rate Monitoring — Inline Sensor with Integrated Processor
Flow rate measurement · liquids · Inline · 3/8'' Swagelok
Flow rate measurement · liquids · Inline · 3/8'' Swagelok
Flow rate measurement · liquids · Inline · 3/4″ NPT
Flow monitoring · liquids · With display (integrated probe)
Flow monitoring · liquids · With display (integrated probe) · G 1/4'' male thread
Flow monitoring · liquids · With display (integrated probe) · 1/2″ NPT male thread
Flow monitoring · liquids · With display (integrated probe) · 1/2″ NPT male thread
Flow monitoring · liquids · With display (integrated probe) · G 1/2″ male thread
Flow monitoring · liquids · With display (integrated probe) · G 1/2″ male thread
Flow monitoring · liquids · With display (integrated probe) · G 1/2″ male thread
Flow monitoring · liquids · With display (integrated probe) · 1/2″ NPT male thread
Flow monitoring · liquids · With display (integrated probe) · 1/2″ NPT male thread
Flow monitoring · liquids · With display (integrated probe) · 3/4″ NPT male thread
Pressure Transmitter — With Current Output (2-Wire)
Flow monitoring · Signal processor
Flow monitoring · Signal processor
Flow monitoring · Signal processor
Signal processor
Signal processor
Signal processor
Signal processor
Signal processor
Flow monitoring · Signal processor
Flow monitoring · Signal processor
Flow monitoring · Signal processor
13 modelsClick to compare & select →
Ultrasonic Sensor — Level Control
Ultrasonic Sensor — Level Control
Ultrasonic Sensor — Level Control
Ultrasonic Sensor — Level Control
Ultrasonic Sensor — Level Control
Ultrasonic Sensor — Level Control
Ultrasonic Sensor — Level Control
Ultrasonic Sensor — Level Control
Flanged / threaded diaphragm seal system that protects pressure / level / DP transmitters from corrosive, erosive, or extreme-temperature process media. Same isolation benefits as the 1199 family but with a streamlined model code, an 800-PSI threaded connection rating option, and a wider material variety. Mounts directly to flanged or threaded process connections — no separate mounting hardware required, reducing installation cost. Supports gauge, absolute, and DP transmitters; usable as a remote seal where physical size fits. SIL 2/3 third-party certified to IEC 61508.
Process-to-seal connection ring with integrated valves that lets you remove residue build-up from diaphragm seals WITHOUT disconnecting the seal from process flanges. Major reduction in maintenance downtime, labor cost, and parts management. Two design variants: Traditional (flow-through cleaning, sized to fit nearly any application, choice of ball / needle / gate valves) and Compact (cleans 5× faster over 30% more surface area, 50% fewer leak points than other flushing rings). Factory leak-tested — mount and use right out of the box. Used downstream of a 1199 / 1299 diaphragm seal on any pressure / level / DP application with sticky, scaling, or polymerizing media.
