Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

Dwyer RHPX-2SDA0-00 Duct-Mount Temperature & Humidity Transmitter - Duct-Mount Temperature & Humidity Transmitters
DwyerDuct-Mount Temperature & Humidity Transmitters

Dwyer RHPX-2SDA0-00 Duct-Mount Temperature & Humidity Transmitter

The Dwyer RHPX-2SDA0-00 is a duct-mount temperature and humidity transmitter with a 4 to 20mA DC output and a 2% humidity accuracy. It operates on a 10 to 35V DC power source, measures temperatures from -4 °F to 140…

SKU 3G-OTH-180787

Also listed as: RHPX2SDA000 · RHPX 2SDA0 00

Brand
Dwyer
Item
RHPX-2SDA0-00 Duct-Mount Temperature & Humidity Transmitter
Category
Duct-Mount Temperature & Humidity Transmitters
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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-2SDA0-00
Type
Screw Terminals, RHP, 11.59 in
NPS
1/2 in
Output
4 to 20mA DC
Probe Lg
9 in
Power Source
10 to 35V DC
Humidity Accuracy
2%
Temperature Range
-4 °F to 140 °F

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The Dwyer RHPX-2SDA0-00 is a duct-mount temperature and humidity transmitter with a 4 to 20mA DC output and a 2% humidity accuracy. It operates on a 10 to 35V DC power source, measures temperatures from -4 °F to 140 °F, and features screw terminals, a 1/2 in NPS connection, and a 9 in probe length.

Frequently Asked Questions

What is the Dwyer RHPX-2SDA0-00 humidity transducer used for?

The Dwyer RHPX-2SDA0-00 is a duct-mount temperature and humidity transmitter used in HVAC systems to monitor and control air conditions in commercial and industrial buildings. It provides a 4 to 20mA DC output for integration with building management systems, ensuring precise environmental regulation.

What are the specifications of the Dwyer RHPX-2SDA0-00?

The Dwyer RHPX-2SDA0-00 has a humidity accuracy of 2%, a 4 to 20mA DC output, and operates on 10 to 35V DC power. It measures temperatures from -4 °F to 140 °F, features screw terminals, a 1/2 in NPS connection, and a 9 in probe length. The brand is Dwyer.

Where to buy the Dwyer RHPX-2SDA0-00 worldwide?

You can source the Dwyer RHPX-2SDA0-00 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this Dwyer humidity transducer.

How to install the Dwyer RHPX-2SDA0-00 duct-mount transmitter?

Mount the Dwyer RHPX-2SDA0-00 in a duct using the 1/2 in NPS connection, ensuring the 9 in probe is fully inserted into the airstream. Connect screw terminals to a 10 to 35V DC power source and wire the 4 to 20mA DC output to your controller. Follow Dwyer's manual for proper placement and wiring.

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

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
This duct-mount transmitter measures temperature and humidity in HVAC air streams. It provides a 4 to 20mA DC output proportional to measured values, with 3% humidity accuracy over -4 °F to 140 °F. The unit features screw terminals, a 1/2 in NPS connection, and a 9 in probe. Power requirement is 10 to 35V DC
Dwyer
This duct-mount transmitter measures temperature and humidity in HVAC air streams. It provides a 4 to 20mA DC output proportional to measured values, with 3% humidity accuracy over -4 °F to 140 °F. The unit features screw terminals, a 1/2 in NPS connection, and a 9 in probe. Power requirement is 10 to 35V DC
This duct-mount transmitter measures temperature and humidity, providing a 0 to 10V DC signal for building management systems. It features screw terminals, a 1/2 in NPS connection, and a 9 in probe. Power source is 15 to 35V DC, with humidity accuracy of 2% and temperature range of -4 °F to 140 °F
Dwyer
This duct-mount transmitter measures temperature and humidity, providing a 0 to 10V DC signal for building management systems. It features screw terminals, a 1/2 in NPS connection, and a 9 in probe. Power source is 15 to 35V DC, with humidity accuracy of 2% and temperature range of -4 °F to 140 °F
Dwyer RHPX-2SDAD-00 duct-mount transmitter measures temperature and humidity with a Pt100 RTD sensor. Output is 4 to 20mA DC, powered by 10 to 35V DC. Humidity accuracy is 2%, temperature accuracy ±0.54°F at 32°F, range -4 to 140°F. Features screw terminals, 1/2 in NPS connection, and 9-inch probe. Used in HVAC duct systems for monitoring air conditions
Dwyer
Dwyer RHPX-2SDAD-00 duct-mount transmitter measures temperature and humidity with a Pt100 RTD sensor. Output is 4 to 20mA DC, powered by 10 to 35V DC. Humidity accuracy is 2%, temperature accuracy ±0.54°F at 32°F, range -4 to 140°F. Features screw terminals, 1/2 in NPS connection, and 9-inch probe. Used in HVAC duct systems for monitoring air conditions
The Dwyer RHP-2D1B is a duct-mount transmitter for measuring temperature and humidity in HVAC air-handling systems. It outputs a 4 to 20mA DC signal proportional to both parameters, using a Type II Thermistor (10K @ 25°C) for temperature sensing with ±0.36°F accuracy at 77°F and a humidity sensor with 2% accuracy. The device operates on 10 to 35V DC power and covers a temperature range of -4 °F to 140 °F, with screw terminal connections
Dwyer
The Dwyer RHP-2D1B is a duct-mount transmitter for measuring temperature and humidity in HVAC air-handling systems. It outputs a 4 to 20mA DC signal proportional to both parameters, using a Type II Thermistor (10K @ 25°C) for temperature sensing with ±0.36°F accuracy at 77°F and a humidity sensor with 2% accuracy. The device operates on 10 to 35V DC power and covers a temperature range of -4 °F to 140 °F, with screw terminal connections
Duct-mount transmitter for monitoring temperature and humidity in HVAC air handling ducts. Features Pt100 RTD sensing element, 0 to 10V DC output, screw terminals, and 9-inch probe with 1/2 in NPS connection. Humidity accuracy 3%, temperature accuracy ±0.54°F @ 32°F, range -4 °F to 140 °F. Powered by 15 to 35V DC
Dwyer
Duct-mount transmitter for monitoring temperature and humidity in HVAC air handling ducts. Features Pt100 RTD sensing element, 0 to 10V DC output, screw terminals, and 9-inch probe with 1/2 in NPS connection. Humidity accuracy 3%, temperature accuracy ±0.54°F @ 32°F, range -4 °F to 140 °F. Powered by 15 to 35V DC
DWYER Humidity/Temp Transducer: 4 to 20mA DC, Thermistor (20K @ 25°C), Screw Terminals, 1/2 in NPS (MPN RHPX-3SDA0-00)
Dwyer
DWYER Humidity/Temp Transducer: 4 to 20mA DC, Thermistor (20K @ 25°C), Screw Terminals, 1/2 in NPS (MPN RHPX-3SDA0-00)

More from Dwyer

View all Dwyer parts
This duct-mount transmitter measures temperature and humidity in HVAC air-handling systems. It outputs a 0 to 10V DC signal proportional to measured values. The Pt100 RTD sensor provides temperature accuracy of ±0.54°F at 32°F over a -4°F to 140°F range, with 2% humidity accuracy. The unit features screw terminals, a 1/2 in NPS connection, and a 9 in probe
Dwyer
This duct-mount transmitter measures temperature and humidity in HVAC air-handling systems. It outputs a 0 to 10V DC signal proportional to measured values. The Pt100 RTD sensor provides temperature accuracy of ±0.54°F at 32°F over a -4°F to 140°F range, with 2% humidity accuracy. The unit features screw terminals, a 1/2 in NPS connection, and a 9 in probe
Duct-mount transmitter for monitoring temperature and humidity in HVAC air handling ducts. Features Pt1000 RTD sensing element, 2% humidity accuracy, ±0.54°F temperature accuracy at 32°F, and 0 to 10V DC output. Operates on 15 to 35V DC power, with a 9-inch probe and 1/2 inch NPS connection
Dwyer
Duct-mount transmitter for monitoring temperature and humidity in HVAC air handling ducts. Features Pt1000 RTD sensing element, 2% humidity accuracy, ±0.54°F temperature accuracy at 32°F, and 0 to 10V DC output. Operates on 15 to 35V DC power, with a 9-inch probe and 1/2 inch NPS connection
This duct-mount transmitter measures temperature and humidity in HVAC air handling systems. It features a Pt1000 RTD sensing element with ±0.54°F accuracy at 32°F and 3% humidity accuracy. Output is 0-10V DC, powered by 15-35V DC. Includes screw terminals and a 9-inch probe with 1/2" NPS fitting
Dwyer
This duct-mount transmitter measures temperature and humidity in HVAC air handling systems. It features a Pt1000 RTD sensing element with ±0.54°F accuracy at 32°F and 3% humidity accuracy. Output is 0-10V DC, powered by 15-35V DC. Includes screw terminals and a 9-inch probe with 1/2" NPS fitting
Duct-mount transmitter for temperature and humidity measurement in HVAC systems. Provides a 4 to 20 mA output signal for integration with building automation controls. Operates over a range of 32 to 158°F and is powered by 110V AC
Dwyer
Duct-mount transmitter for temperature and humidity measurement in HVAC systems. Provides a 4 to 20 mA output signal for integration with building automation controls. Operates over a range of 32 to 158°F and is powered by 110V AC
Duct-mount transmitter for measuring humidity and temperature in HVAC air-handling units. Features Type III Thermistor (10K @ 25°C) sensing element, 2% humidity accuracy, ±0.36°F temperature accuracy at 77°F, and 4-20mA DC output. Operates on 10-35V DC power over -4°F to 140°F range
Dwyer
Duct-mount transmitter for measuring humidity and temperature in HVAC air-handling units. Features Type III Thermistor (10K @ 25°C) sensing element, 2% humidity accuracy, ±0.36°F temperature accuracy at 77°F, and 4-20mA DC output. Operates on 10-35V DC power over -4°F to 140°F range
Duct-mount transmitter for simultaneous temperature and relative humidity measurement in HVAC air-handling systems. Provides a 4 to 20 mA output signal for integration with building automation or control panels. Operates over a temperature range of 32°F to 158°F and is powered by 110V AC
Dwyer
Duct-mount transmitter for simultaneous temperature and relative humidity measurement in HVAC air-handling systems. Provides a 4 to 20 mA output signal for integration with building automation or control panels. Operates over a temperature range of 32°F to 158°F and is powered by 110V AC
Duct-mount transmitter with Pt1000 RTD for temperature and humidity measurement. Outputs 4 to 20mA DC, powered by 10 to 35V DC. Temperature range -4°F to 140°F with ±0.54°F accuracy at 32°F; humidity accuracy 3%. Features screw terminals, 1/2 in NPS connection, and 9 in probe. Suitable for HVAC duct monitoring in commercial and industrial environments
Dwyer
Duct-mount transmitter with Pt1000 RTD for temperature and humidity measurement. Outputs 4 to 20mA DC, powered by 10 to 35V DC. Temperature range -4°F to 140°F with ±0.54°F accuracy at 32°F; humidity accuracy 3%. Features screw terminals, 1/2 in NPS connection, and 9 in probe. Suitable for HVAC duct monitoring in commercial and industrial environments
Duct-mount transmitter for monitoring temperature and humidity in HVAC air handling ducts. Features a Type II Thermistor (10K @ 25°C) sensing element, 4-20mA DC output, and screw terminals. Operates on 10-35V DC power, with temperature range -4°F to 140°F, temperature accuracy ±0.36°F @ 77°F, and humidity accuracy 3%
Dwyer
Duct-mount transmitter for monitoring temperature and humidity in HVAC air handling ducts. Features a Type II Thermistor (10K @ 25°C) sensing element, 4-20mA DC output, and screw terminals. Operates on 10-35V DC power, with temperature range -4°F to 140°F, temperature accuracy ±0.36°F @ 77°F, and humidity accuracy 3%