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Dwyer Humidity/Temperature Sensor: 4 to 20 mA, Solid State Band Gap, Screw Terminals - Indoor Wall-Mount Transmitters
DwyerIndoor Wall-Mount Transmitters

Dwyer Humidity/Temperature Sensor: 4 to 20 mA, Solid State Band Gap, Screw Terminals

The Dwyer RHP-2E4B is an indoor wall-mount transmitter that measures humidity and temperature, providing a 4 to 20 mA output. It features a solid state band gap sensing element with a temperature accuracy of ±0.36°F…

SKU 3G-OTH-179239

Brand
Dwyer
Item
Humidity/Temperature Sensor: 4 to 20 mA, Solid State Band Gap, Screw Terminals
Category
Indoor Wall-Mount Transmitters
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Technical Specifications

Dwyer
Manufacturer Part Number
RHP-2E4B
Type
Solid State Band Gap, Screw Terminals, -4°F to 140°F
Output
4 to 20 mA
Temperature Range
-4 °F to 140 °F
Sensing Element Type
Solid State Band Gap
Temperature Accuracy
±0.36°F @ 77°F
View Full Spec Sheet

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Dwyer Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dwyer RHP-2E4B is an indoor wall-mount transmitter that measures humidity and temperature, providing a 4 to 20 mA output. It features a solid state band gap sensing element with a temperature accuracy of ±0.36°F @ 77°F and operates over a temperature range of -4 °F to 140 °F.

Frequently Asked Questions

What is the Dwyer RHP-2E4B humidity/temperature sensor used for?

The Dwyer RHP-2E4B is an indoor wall-mount transmitter that measures both humidity and temperature. It provides a 4 to 20 mA output for building automation, HVAC control, and environmental monitoring in commercial or industrial facilities.

What are the specifications of the Dwyer RHP-2E4B?

The Dwyer RHP-2E4B uses a solid state band gap sensing element with a temperature accuracy of ±0.36°F @ 77°F. It operates over a temperature range of -4 °F to 140 °F and outputs a 4 to 20 mA signal. Connections are via screw terminals.

Where to buy the Dwyer RHP-2E4B worldwide?

3G Electric supplies the Dwyer RHP-2E4B humidity/temperature sensor to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this Dwyer transmitter.

How to install the Dwyer RHP-2E4B wall-mount transmitter?

Mount the Dwyer RHP-2E4B on a flat indoor wall away from direct sunlight, drafts, or heat sources. Wire the 4 to 20 mA output to your controller using the screw terminals. Follow Dwyer’s manual for proper placement and wiring to ensure accurate readings.

Used in

Common applications for Dwyer
Combustion air-filter monitoring — Magnehelic Series 2000 on burner air-intake filter banks
Clean-room and pharmaceutical pressurisation — Magnehelic / Capsuhelic differential-pressure gauges
HVAC fan-discharge static pressure — Mark II inclined-vertical manometers on AHU test points
Filter-blockage alarms — Photohelic Series 3000 combined gauge/switch on air-handling units
BMS-integrated pressure monitoring — Digihelic DH3 with 4–20 mA output for building management

Dwyer Products

3G Electric supplies Dwyer indoor wall-mount transmitters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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