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Dwyer Humidity Transmitters: 4 to 20mA, Pt1000 RTD, Screw Terminals, 1/2 in NPS - Outdoor Surface-Mount Temperature & Humidity Transmitters
DwyerOutdoor Surface-Mount Temperature & Humidity Transmitters

Dwyer Humidity Transmitters: 4 to 20mA, Pt1000 RTD, Screw Terminals, 1/2 in NPS

The Dwyer RHP-2O1E is an outdoor surface-mount temperature and humidity transmitter with a 4 to 20mA output. It features a Pt1000 RTD sensing element, humidity accuracy of ±2% 10 to 90% RH at 25°C, and temperature…

SKU 3G-OTH-179165

Brand
Dwyer
Item
Humidity Transmitters: 4 to 20mA, Pt1000 RTD, Screw Terminals, 1/2 in NPS
Category
Outdoor Surface-Mount Temperature & Humidity Transmitters
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Technical Specifications

Dwyer
Manufacturer Part Number
RHP-2O1E
Type
Pt1000 RTD, Screw Terminals, RHP
NPS
1/2 in
Output
4 to 20mA
Probe Lg
3 in
Power Source
10 to 35V DC
Humidity Accuracy
±2% 10 to 90% RH at 25°C
Temperature Range
-4 °F to 140 °F
Sensing Element Type
Pt1000 RTD
Temperature Accuracy
±0.54°F @ 32°F
View Full Spec Sheet

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

Product Description

The Dwyer RHP-2O1E is an outdoor surface-mount temperature and humidity transmitter with a 4 to 20mA output. It features a Pt1000 RTD sensing element, humidity accuracy of ±2% 10 to 90% RH at 25°C, and temperature accuracy of ±0.54°F @ 32°F. The device operates on a 10 to 35V DC power source within a temperature range of -4 °F to 140 °F.

Frequently Asked Questions

What is the Dwyer RHP-2O1E humidity transmitter used for?

The Dwyer RHP-2O1E is an outdoor surface-mount transmitter that measures both humidity and temperature. It is used in HVAC, environmental monitoring, and process control applications where reliable 4 to 20mA output and Pt1000 RTD sensing are required for accurate air-conditioning or ventilation system management.

What are the specifications of the Dwyer RHP-2O1E?

The Dwyer RHP-2O1E has a humidity accuracy of ±2% from 10 to 90% RH at 25°C, temperature accuracy of ±0.54°F at 32°F, and a Pt1000 RTD sensing element. It outputs 4 to 20mA, operates on 10 to 35V DC, and covers a temperature range of -4°F to 140°F with a 3-inch probe.

Where to buy the Dwyer RHP-2O1E worldwide?

3G Electric supplies the Dwyer RHP-2O1E humidity transmitter to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this outdoor surface-mount transmitter with 4 to 20mA output.

How to install the Dwyer RHP-2O1E outdoor transmitter?

Mount the Dwyer RHP-2O1E on a flat outdoor surface using the provided bracket, ensuring the probe is exposed to ambient air. Connect 10 to 35V DC power and wire the 4 to 20mA output to your controller via the screw terminals. Avoid direct sunlight and moisture ingress for best accuracy.

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 outdoor surface-mount temperature & humidity transmitters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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