Rosemount 3900 General Purpose pH/ORP Sensor

Rosemount1 configuration

Configure Your Rosemount 3900 General-Purpose pH/ORP Sensor

Mid-tier general-purpose pH/ORP sensor with double-junction reference. Protects the reference element from poisoning ions (ammonia, chlorine, cyanides, sulfides). Cost-effective workhorse for water/wastewater and general process applications.

Required Specifications

2 of 2 selected

Preamplifier*

-07

Measurement Type*

-10

Style

Calibration and Conformance Certificates

Rosemount 3900 General-Purpose pH/ORP Sensor Part Number

3900-07-10

Configured list price:$484.38(estimate based on May 2026 Rosemount list; quote may reflect distributor pricing)

Configuration Summary — Rosemount 3900 General-Purpose pH/ORP Sensor

Base: $484.38

Preamplifier:: -07No Preamplifier 4' cable
Measurement Type:: -10General Purpose Low Resistivity pH Glass (0-14pH)

Rosemount is configurator-heavy and quote-only — Valley Instrument verifies option compatibility, lead time, and pricing before confirming your order.

Pre-configured Options(1)

Rosemount

3900 General Purpose pH/ORP Sensor

Mid-tier general-purpose pH/ORP sensor with double-junction reference — protects the reference element from poisoning ions (ammonia, chlorine, cyanides, sulfides) that kill single-junction reference sensors. Wide range of installation styles: insertion, submersion, retractable. Cost-effective workhorse for water/wastewater, general process, and any application where the 3300HT premium would be over-spec. VP version (3900VP) for variable-pin connector compatibility.

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