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3G Electric
Dwyer RHPX-3SDAA-00 Duct-Mount Temperature & Humidity Transmitter, 4-20mA Output - Duct-Mount Temperature & Humidity Transmitters
DwyerDuct-Mount Temperature & Humidity Transmitters

Dwyer RHPX-3SDAA-00 Duct-Mount Temperature & Humidity Transmitter, 4-20mA Output

The Dwyer RHPX-3SDAA-00 is a duct-mount temperature and humidity transmitter with a 4 to 20mA DC output. It features a Type III Thermistor (10K @ 25°C) sensing element, humidity accuracy of 3%, and temperature…

SKU 3G-OTH-180779

Also listed as: RHPX3SDAA00 · RHPX 3SDAA 00

Brand
Dwyer
Item
RHPX-3SDAA-00 Duct-Mount Temperature & Humidity Transmitter, 4-20mA Output
Part Number
RHPX-3SDAA-00
Category
Duct-Mount Temperature & Humidity Transmitters
Available to Order
Also known as:RHPX-3SDAA-00Dwyer
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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
RHPX-3SDAA-00
Type
Type III Thermistor (10K @ 25°C), Screw Terminals, RHP
Output
4 to 20mA DC
Power Source
10 to 35V DC
Humidity Accuracy
3%
Temperature Range
-4 °F to 140 °F
Sensing Element Type
Type III Thermistor (10K @ 25°C)
Temperature Accuracy
±0.36°F @ 77°F

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

Product Description

The Dwyer RHPX-3SDAA-00 is a duct-mount temperature and humidity transmitter with a 4 to 20mA DC output. It features a Type III Thermistor (10K @ 25°C) sensing element, humidity accuracy of 3%, and temperature accuracy of ±0.36°F @ 77°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 RHPX-3SDAA-00 used for?

The Dwyer RHPX-3SDAA-00 is a duct-mount transmitter used to measure and transmit both humidity and temperature in HVAC systems. It outputs a 4 to 20mA DC signal for integration with building automation or control systems, making it suitable for environmental monitoring in commercial and industrial air-handling units.

What are the specifications of the Dwyer RHPX-3SDAA-00?

The Dwyer RHPX-3SDAA-00 has a humidity accuracy of 3% and temperature accuracy of ±0.36°F @ 77°F. It uses a Type III Thermistor (10K @ 25°C) sensing element, operates on 10 to 35V DC power, and covers a temperature range of -4 °F to 140 °F. Output is 4 to 20mA DC.

Where to buy the Dwyer RHPX-3SDAA-00 worldwide?

3G Electric supplies the Dwyer RHPX-3SDAA-00 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; we source and deliver this transmitter to any country.

How to install the Dwyer RHPX-3SDAA-00?

Mount the Dwyer RHPX-3SDAA-00 in a duct using the provided flange, ensuring the sensing element is exposed to airflow. Connect 10 to 35V DC power and 4 to 20mA output via screw terminals. Follow Dwyer's manual for wiring polarity and avoid condensation on the sensor for 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
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Dwyer Products

3G Electric supplies Dwyer duct-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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