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

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

The Dwyer RHPX-3SSA0-00 is an outdoor surface-mount temperature and humidity transmitter with a 4 to 20mA output. It features an RTD or thermistor sensing element, operates on 10 to 35V DC power, and offers humidity…

SKU 3G-OTH-179168

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

Dwyer
Manufacturer Part Number
RHPX-3SSA0-00
Type
RTD or Thermistor, Screw Terminals, RHP
NPS
1/2 in
Output
4 to 20mA
Power Source
10 to 35V DC
Humidity Accuracy
±3% 20 to 80% RH at 25°C
Temperature Range
-4 °F to 140 °F
Sensing Element Type
RTD or Thermistor
View Full Spec Sheet

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

Product Description

The Dwyer RHPX-3SSA0-00 is an outdoor surface-mount temperature and humidity transmitter with a 4 to 20mA output. It features an RTD or thermistor sensing element, operates on 10 to 35V DC power, and offers humidity accuracy of ±3% from 20 to 80% RH at 25°C. The device measures temperature from -4 °F to 140 °F and includes screw terminals with a 1/2 in NPS connection.

Frequently Asked Questions

What is the Dwyer RHPX-3SSA0-00 humidity transmitter used for?

The Dwyer RHPX-3SSA0-00 is an outdoor surface-mount transmitter that measures both humidity and temperature. It is commonly used in HVAC, environmental monitoring, and building automation systems to provide reliable 4 to 20mA output signals for remote sensing and control applications.

What are the specifications of the Dwyer RHPX-3SSA0-00?

The Dwyer RHPX-3SSA0-00 offers humidity accuracy of ±3% from 20 to 80% RH at 25°C, uses an RTD or thermistor sensing element, and provides a 4 to 20mA output. It operates on 10 to 35V DC power, measures temperature from -4 °F to 140 °F, and includes screw terminals with a 1/2 in NPS connection.

Where to buy the Dwyer RHPX-3SSA0-00 worldwide?

You can source the Dwyer RHPX-3SSA0-00 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; we provide competitive sourcing for this Dwyer transmitter.

How to install the Dwyer RHPX-3SSA0-00 humidity transmitter?

Mount the Dwyer RHPX-3SSA0-00 on a flat outdoor surface using the provided screw terminals and 1/2 in NPS connection. Wire the 4 to 20mA output to your controller, ensuring power supply is 10 to 35V DC. Avoid direct sunlight and moisture ingress for accurate readings. Consult the Dwyer manual for detailed wiring diagrams.

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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DWYER Humidity Transmitters: 4 to 20mA, Thermistor (20K @ 25°C), Screw Terminals, 1/2 in NPS, RHP (MPN RHPX-2SSAF-00). Key specifications — Brand: DWYER; Humidity Accuracy: ±2% 10 to 90% RH at 25°C; Sensing Element Type: Thermistor (20K @ 25°C); Temperature Accuracy: ±0.36°F @ 77°F; Output: 4 to 20mA; Power Source: 10 to 35V DC; Temperature Range: -4 °F to 140 °F.
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DWYER Humidity Transmitters: 4 to 20mA, Pt1000 RTD, Screw Terminals, 1/2 in NPS, 3 in Probe Lg, RHP (MPN RHP-2O1E). Key specifications — Brand: DWYER; Humidity Accuracy: ±2% 10 to 90% RH at 25°C; Sensing Element Type: Pt1000 RTD; Temperature Accuracy: ±0.54°F @ 32°F; Output: 4 to 20mA; Power Source: 10 to 35V DC; Temperature Range: -4 °F to 140 °F.