

SKU: 648
Industry-standard wireless temperature transmitter — best-in-class wireless accuracy and stability for process monitoring. Dual-compartment housing isolates electronics from field wiring. WirelessHART IEC 62591 with user-configurable update rate, 2.4 GHz DSSS radio. SmartPower module (Lithium-thionyl chloride, 10-year life @ 1-minute update). Single-sensor input pairs with the Rosemount 214C / 214A / 65 sensors or with the 0085 Pipe Clamp Sensor for X-well non-intrusive surface measurement. All certifications are Intrinsic Safety — by design, the 648 is battery-powered and approved for IS service worldwide.
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Industry-standard wireless temperature transmitter — best-in-class wireless accuracy and stability for process monitoring. Dual-compartment housing isolates electronics from field wiring. WirelessHART IEC 62591 with user-configurable update rate, 2.4 GHz DSSS radio. SmartPower module (Lithium-thionyl chloride, 10-year life @ 1-minute update). Single-sensor input pairs with the Rosemount 214C / 214A / 65 sensors or with the 0085 Pipe Clamp Sensor for X-well non-intrusive surface measurement. All certifications are Intrinsic Safety — by design, the 648 is battery-powered and approved for IS service worldwide.
The Rosemount 648 Wireless Temperature Transmitter # 648 is manufactured by Rosemount. Valley Instrument Service is an authorized Rosemount dealer offering full sales support, NIST-traceable calibration, and expert technical assistance.
Our team can help with product selection, specs, pricing, and application support.
Contact Us or Call (661) 327-8681Industry-standard wireless temperature transmitter — best-in-class wireless accuracy and stability for process monitoring. Dual-compartment housing isolates electronics from field wiring. WirelessHART IEC 62591 with user-configurable update rate, 2.4 GHz DSSS radio. SmartPower module (Lithium-thionyl chloride, 10-year life @ 1-minute update). Single-sensor input pairs with the Rosemount 214C / 214A / 65 sensors or with the 0085 Pipe Clamp Sensor for X-well non-intrusive surface measurement (PT option). All certifications are Intrinsic Safety — by design, the 648 is battery-powered and approved for IS service worldwide.
The 648 is a wireless field-mount transmitter; this position is fixed.
WirelessHART output is the only option on the 648 — that's the whole point of the family.
The 648 supports only single-sensor input.
The 648 ships with ½-14 NPT only.
All wireless approvals are Intrinsic Safety — by design, the 648 is battery-powered and approved for IS service only. KQ is the global combo (USA + Canada + ATEX IS).
External antenna with adapter for Black Power Module (order separately: 701PBKKF or 00753-9220-0001) OR with extra-long-life I.S. Power Module bundled. WM-series codes add extended-range antenna.
Rosemount is configurator-heavy and quote-only — Valley Instrument verifies option compatibility, lead time, and pricing before confirming your order.

Programmable head-mount temperature transmitter. PC-configurable for multiple sensor type inputs (2-, 3-, 4-wire RTDs and most common thermocouples) with cost-effective installation versus running sensor wires direct to the control system. DIN-B form factor mounts inside the sensor's connection head. Wide enclosure selection — aluminum, SST, polypropylene BUZ, sanitary DIN-A/DIN-B, and TZ-A/BK polyamide — for hygienic, hazardous, and harsh-environment process. Worldwide hazardous-area approvals (FM, CSA, ATEX, IECEx).

Tank-gauging multi-input temperature transmitter — purpose-built for custody-transfer-grade tank temperature measurement. Integrates up to 16 Pt-100 RTD spot elements (Cu-90 also supported) over -200 to 250 °C, plus optional Rosemount 765 water-level sensor input. ±0.05 °C transmitter accuracy (excluding sensor error). Premium performance class, FOUNDATION Fieldbus / Tankbus 2-wire bus-powered output. Custody-transfer type approvals available for PTB (Germany), NMIM (Malaysia), and GOST (Kazakhstan) — requires pairing with a Rosemount 2410 Tank Hub and 5900S Radar Level Gauge of matching approval. Polyurethane-covered aluminum IP66/67 enclosure. Hazardous-area: Intrinsic Safety only (FM/CSA/ATEX/IECEx/INMETRO/NEPSI/TIIS/EAC/KCs).

Basic, cost-effective HART head-mount temperature transmitter for temperature monitoring points. DIN-B form factor mounts directly inside the sensor's connection head, eliminating the need for extension wires or multiplexers. Single-sensor 4-20 mA HART output, ±0.15 °C digital accuracy, with worldwide hazardous-area approvals (FM, CSA, ATEX, IECEx, NEPSI, EAC). Aluminum or stainless-steel enclosure options; sanitary DIN-A/DIN-B variants for hygienic process. Pairs with any standard 2-, 3-, or 4-wire RTD or thermocouple sensor.

Compact DIN-rail-mount variant of the Rosemount 248 platform. HART/4-20 mA temperature transmitter engineered for common single-point measurement applications where space-efficient panel/cabinet mounting matters more than direct-in-sensor-head installation. 3-Point Calibration Certificate (Q4) and Custom Configuration of Software Parameters (C1) available. Intrinsic-Safety-only certifications — the 248R typically lives inside a customer-provided cabinet, so flameproof/XP variants aren't part of the line.