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Dwyer RHP-2N40 Indoor Wall-Mount Humidity Transmitter - Indoor Wall-Mount Transmitters
DwyerIndoor Wall-Mount Transmitters

Dwyer RHP-2N40 Indoor Wall-Mount Humidity Transmitter

The Dwyer RHP-2N40 is an indoor wall-mount humidity transmitter with a 4 to 20 mA output. It operates over a temperature range of -4 °F to 140 °F and a relative humidity range of 0% to 100%. This sensor uses screw…

SKU 3G-OTH-179231

Also listed as: RHP2N40 · RHP 2N40

Brand
Dwyer
Item
RHP-2N40 Indoor Wall-Mount Humidity Transmitter
Part Number
RHP-2N40
Category
Indoor Wall-Mount Transmitters
Available to Order
Also known as:RHP-2N40Dwyer
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Dwyer
Manufacturer Part Number
RHP-2N40
Type
Screw Terminals, -4°F to 140°F
Output
4 to 20 mA
Temperature Range
-4 °F to 140 °F
Relative Humidity Range
0%to 100%

Technical Documents

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

Product Description

The Dwyer RHP-2N40 is an indoor wall-mount humidity transmitter with a 4 to 20 mA output. It operates over a temperature range of -4 °F to 140 °F and a relative humidity range of 0% to 100%. This sensor uses screw terminals for electrical connections.

Frequently Asked Questions

What is the Dwyer RHP-2N40 humidity sensor used for?

The Dwyer RHP-2N40 is an indoor wall-mount humidity transmitter used for monitoring and controlling relative humidity in HVAC, cleanroom, and building automation systems. It provides a 4 to 20 mA output signal for integration with controllers and PLCs.

What are the specifications of the Dwyer RHP-2N40?

The Dwyer RHP-2N40 has a 4 to 20 mA output, operates over a temperature range of -4 °F to 140 °F, and measures 0% to 100% relative humidity. It features screw terminals for wiring and is designed for indoor wall-mount installation.

Where to buy the Dwyer RHP-2N40 worldwide?

3G Electric supplies the Dwyer RHP-2N40 humidity sensor worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the Dwyer RHP-2N40 humidity sensor?

Mount the Dwyer RHP-2N40 on an indoor wall at a representative location, away from direct heat or drafts. Connect the 4 to 20 mA output to your controller using the screw terminals. Follow Dwyer's manual for wiring and commissioning best practices.

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
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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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