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

3G Electric
RFQ CartGet a QuoteSign inSign up
Dwyer Humidity Transmitters: 0 to 10V DC, 0 to 10V DC Solid State Band Gap, Screw Terminals - Outdoor Surface-Mount Temperature & Humidity Transmitters
DwyerOutdoor Surface-Mount Temperature & Humidity Transmitters

Dwyer Humidity Transmitters: 0 to 10V DC, 0 to 10V DC Solid State Band Gap, Screw Terminals

The Dwyer RHP-3O22 is an outdoor surface-mount temperature and humidity transmitter with a 0 to 10V DC output. It features a solid-state band gap sensing element, operates on 15 to 29V AC power, and covers a…

SKU 3G-OTH-179163

Brand
Dwyer
Item
Humidity Transmitters: 0 to 10V DC, 0 to 10V DC Solid State Band Gap, Screw Terminals
Category
Outdoor Surface-Mount Temperature & Humidity Transmitters
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

Dwyer
Manufacturer Part Number
RHP-3O22
Type
Screw Terminals, RHP
Output
0 to 10V DC
Power Source
15 to 29V AC
Humidity Accuracy
±3% 20 to 80% RH at 25°C
Temperature Range
-4 °F to 140 °F
Sensing Element Type
0 to 10V DC Solid State Band Gap
Temperature Accuracy
±0.9°F @ 77°F
DC Solid State Band Gap
0 to 10V
View Full Spec Sheet

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 RHP-3O22 is an outdoor surface-mount temperature and humidity transmitter with a 0 to 10V DC output. It features a solid-state band gap sensing element, operates on 15 to 29V AC power, and covers a temperature range of -4 °F to 140 °F. Humidity accuracy is ±3% from 20 to 80% RH at 25°C, and temperature accuracy is ±0.9°F at 77°F.

Frequently Asked Questions

What is the Dwyer RHP-3O22 humidity transmitter used for?

The Dwyer RHP-3O22 is an outdoor surface-mount transmitter that measures both temperature and humidity. It is used in HVAC, environmental monitoring, and building automation systems to provide a 0 to 10V DC output signal for remote sensing and control applications.

What are the specifications of the Dwyer RHP-3O22?

The Dwyer RHP-3O22 has a humidity accuracy of ±3% from 20 to 80% RH at 25°C and temperature accuracy of ±0.9°F at 77°F. It operates on 15 to 29V AC power, covers a temperature range of -4 °F to 140 °F, and uses a solid-state band gap sensing element with screw terminals.

Where to buy the Dwyer RHP-3O22 worldwide?

3G Electric supplies the Dwyer RHP-3O22 humidity transmitter to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this outdoor surface-mount transmitter.

How to install the Dwyer RHP-3O22 outdoor transmitter?

Mount the Dwyer RHP-3O22 on a flat outdoor surface using the provided screw terminals. Connect the 0 to 10V DC output to your control system and supply 15 to 29V AC power. Ensure the sensing element is not obstructed and avoid direct sunlight 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

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
DWYER Humidity Transmitters: 0 to 10V DC, 0 to 10V DC Solid State Band Gap, Screw Terminals, RHP (MPN RHP-2O22). Key specifications — Brand: DWYER; Humidity Accuracy: ±2% 10 to 90% RH at 25°C; Sensing Element Type: 0 to 10V DC Solid State Band Gap; Temperature Accuracy: ±0.9°F @ 77°F; Output: 0 to 10V DC; Power Source: 15 to 29V AC; Temperature Range: -4 °F to 140 °F.
Dwyer
DWYER Humidity Transmitters: 0 to 10V DC, 0 to 10V DC Solid State Band Gap, Screw Terminals, RHP (MPN RHP-2O22). Key specifications — Brand: DWYER; Humidity Accuracy: ±2% 10 to 90% RH at 25°C; Sensing Element Type: 0 to 10V DC Solid State Band Gap; Temperature Accuracy: ±0.9°F @ 77°F; Output: 0 to 10V DC; Power Source: 15 to 29V AC; Temperature Range: -4 °F to 140 °F.
DWYER Humidity/Temp Transducer: 0 to 10V DC, 0 to 5V DC Solid State Band Gap, Screw Terminals, RHP (MPN RHPX-2SDA0-00). Key specifications — Brand: DWYER; Humidity Accuracy: 2%; Sensing Element Type: 0 to 5V DC Solid State Band Gap; Temperature Accuracy: ±0.9°F at 77°F; Output: 0 to 10V DC; Power Source: 15 to 35V DC; 15 to 29V AC; Temperature Range: -4 °F to 140 °F.
Dwyer
DWYER Humidity/Temp Transducer: 0 to 10V DC, 0 to 5V DC Solid State Band Gap, Screw Terminals, RHP (MPN RHPX-2SDA0-00). Key specifications — Brand: DWYER; Humidity Accuracy: 2%; Sensing Element Type: 0 to 5V DC Solid State Band Gap; Temperature Accuracy: ±0.9°F at 77°F; Output: 0 to 10V DC; Power Source: 15 to 35V DC; 15 to 29V AC; Temperature Range: -4 °F to 140 °F.
DWYER Humidity/Temp Transducer: 4 to 20mA DC, 0 to 5V DC Solid State Band Gap, Screw Terminals, RHP (MPN RHPX-2SDA0-00). Key specifications — Brand: DWYER; Humidity Accuracy: 2%; Sensing Element Type: 0 to 5V DC Solid State Band Gap; Temperature Accuracy: ±0.9°F at 77°F; Output: 4 to 20mA DC; Power Source: 10 to 35V DC; Temperature Range: -4 °F to 140 °F.
Dwyer
DWYER Humidity/Temp Transducer: 4 to 20mA DC, 0 to 5V DC Solid State Band Gap, Screw Terminals, RHP (MPN RHPX-2SDA0-00). Key specifications — Brand: DWYER; Humidity Accuracy: 2%; Sensing Element Type: 0 to 5V DC Solid State Band Gap; Temperature Accuracy: ±0.9°F at 77°F; Output: 4 to 20mA DC; Power Source: 10 to 35V DC; Temperature Range: -4 °F to 140 °F.
DWYER Humidity Transmitters: 4 to 20mA, RTD or Thermistor, Screw Terminals, 1/2 in NPS, RHP (MPN RHPX-3SSA0-00). Key specifications — Brand: DWYER; Humidity Accuracy: ±3% 20 to 80% RH at 25°C; Sensing Element Type: RTD or Thermistor; Output: 4 to 20mA; Power Source: 10 to 35V DC; Temperature Range: -4 °F to 140 °F.
Dwyer
DWYER Humidity Transmitters: 4 to 20mA, RTD or Thermistor, Screw Terminals, 1/2 in NPS, RHP (MPN RHPX-3SSA0-00). Key specifications — Brand: DWYER; Humidity Accuracy: ±3% 20 to 80% RH at 25°C; Sensing Element Type: RTD or Thermistor; Output: 4 to 20mA; Power Source: 10 to 35V DC; Temperature Range: -4 °F to 140 °F.
DWYER Humidity Transmitters: 4 to 20mA, Type II Thermistor (10K @ 25°C), Screw Terminals, 1/2 in NPS (MPN RHPX-3SSAB-00). Key specifications — Brand: DWYER; Humidity Accuracy: ±3% 20 to 80% RH at 25°C; Sensing Element Type: Type II Thermistor (10K @ 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.
Dwyer
DWYER Humidity Transmitters: 4 to 20mA, Type II Thermistor (10K @ 25°C), Screw Terminals, 1/2 in NPS (MPN RHPX-3SSAB-00). Key specifications — Brand: DWYER; Humidity Accuracy: ±3% 20 to 80% RH at 25°C; Sensing Element Type: Type II Thermistor (10K @ 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.
DWYER Humidity/Temp Transducer: 0 to 10V DC, 0 to 5V DC Solid State Band Gap, Screw Terminals, RHP (MPN RHPX-3SDA0-00). Key specifications — Brand: DWYER; Humidity Accuracy: 3%; Sensing Element Type: 0 to 5V DC Solid State Band Gap; Temperature Accuracy: ±0.9°F at 77°F; Output: 0 to 10V DC; Power Source: 15 to 35V DC; 15 to 29V AC; Temperature Range: -4 °F to 140 °F.
Dwyer
DWYER Humidity/Temp Transducer: 0 to 10V DC, 0 to 5V DC Solid State Band Gap, Screw Terminals, RHP (MPN RHPX-3SDA0-00). Key specifications — Brand: DWYER; Humidity Accuracy: 3%; Sensing Element Type: 0 to 5V DC Solid State Band Gap; Temperature Accuracy: ±0.9°F at 77°F; Output: 0 to 10V DC; Power Source: 15 to 35V DC; 15 to 29V AC; Temperature Range: -4 °F to 140 °F.

More from Dwyer

View all Dwyer parts →
DWYER Humidity Transmitters: 0 to 10V DC, Pt1000 RTD, Screw Terminals, 1/2 in NPS, 3 in Probe Lg (MPN RHP-3O2E). Key specifications — Brand: DWYER; Humidity Accuracy: ±3% 20 to 80% RH at 25°C; Sensing Element Type: Pt1000 RTD; Temperature Accuracy: ±0.54°F @ 32°F; Output: 0 to 10V DC; Power Source: 15 to 29V AC; Temperature Range: -4 °F to 140 °F.
Dwyer
DWYER Humidity Transmitters: 0 to 10V DC, Pt1000 RTD, Screw Terminals, 1/2 in NPS, 3 in Probe Lg (MPN RHP-3O2E). Key specifications — Brand: DWYER; Humidity Accuracy: ±3% 20 to 80% RH at 25°C; Sensing Element Type: Pt1000 RTD; Temperature Accuracy: ±0.54°F @ 32°F; Output: 0 to 10V DC; Power Source: 15 to 29V AC; Temperature Range: -4 °F to 140 °F.
DWYER Humidity/Temperature Transmitter: 0 to 10VDC, 10K Ohm Type 3 Thermistor, Screw Terminals, WHT (MPN WHT-32A). Key specifications — Brand: DWYER; Humidity Accuracy: ±2% @ 20 to 80% RH; ±3% @ 10 to 20%, 80 to 90% RH.; Sensing Element Type: 10K Ohm Type 3 Thermistor; Temperature Accuracy: ±0.36°F @ 77°F; Output: 0 to 10VDC; Power Source: 10 to 35V DC; Temperature Range: -4 °F to 140 °F.
Dwyer
DWYER Humidity/Temperature Transmitter: 0 to 10VDC, 10K Ohm Type 3 Thermistor, Screw Terminals, WHT (MPN WHT-32A). Key specifications — Brand: DWYER; Humidity Accuracy: ±2% @ 20 to 80% RH; ±3% @ 10 to 20%, 80 to 90% RH.; Sensing Element Type: 10K Ohm Type 3 Thermistor; Temperature Accuracy: ±0.36°F @ 77°F; Output: 0 to 10VDC; Power Source: 10 to 35V DC; Temperature Range: -4 °F to 140 °F.
DWYER Humidity Transmitters: 4 to 20mA, Pt1000 RTD, Screw Terminals, 1/2 in NPS, 3 in Probe Lg, RHP (MPN RHP-3O1E). Key specifications — Brand: DWYER; Humidity Accuracy: ±3% 20 to 80% 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.
Dwyer
DWYER Humidity Transmitters: 4 to 20mA, Pt1000 RTD, Screw Terminals, 1/2 in NPS, 3 in Probe Lg, RHP (MPN RHP-3O1E). Key specifications — Brand: DWYER; Humidity Accuracy: ±3% 20 to 80% 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.
DWYER Humidity Transmitters: 4 to 20mA, Type III Thermistor (10K @ 25°C), Screw Terminals, RHP (MPN RHPX-3SSAA-00). Key specifications — Brand: DWYER; Humidity Accuracy: ±3% 20 to 80% RH at 25°C; Sensing Element Type: Type III Thermistor (10K @ 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.
Dwyer
DWYER Humidity Transmitters: 4 to 20mA, Type III Thermistor (10K @ 25°C), Screw Terminals, RHP (MPN RHPX-3SSAA-00). Key specifications — Brand: DWYER; Humidity Accuracy: ±3% 20 to 80% RH at 25°C; Sensing Element Type: Type III Thermistor (10K @ 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.
DWYER Humidity Transmitters: 4 to 20mA, 40 to 20mA Solid State Band Gap, Screw Terminals, 1/2 in NPS (MPN RHPX-2SSA0-00). Key specifications — Brand: DWYER; Humidity Accuracy: ±2% 10 to 90% RH at 25°C; Sensing Element Type: 40 to 20mA Solid State Band Gap; Temperature Accuracy: ±0.9°F @ 77°F; Output: 4 to 20mA; Power Source: 10 to 35V DC; Temperature Range: -4 °F to 140 °F.
Dwyer
DWYER Humidity Transmitters: 4 to 20mA, 40 to 20mA Solid State Band Gap, Screw Terminals, 1/2 in NPS (MPN RHPX-2SSA0-00). Key specifications — Brand: DWYER; Humidity Accuracy: ±2% 10 to 90% RH at 25°C; Sensing Element Type: 40 to 20mA Solid State Band Gap; Temperature Accuracy: ±0.9°F @ 77°F; Output: 4 to 20mA; Power Source: 10 to 35V DC; Temperature Range: -4 °F to 140 °F.
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.
Dwyer
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.
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.
Dwyer
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.
DWYER Humidity Transmitters: 4 to 20mA, Thermistor (20K @ 25°C), Screw Terminals, 1/2 in NPS, RHP (MPN RHPX-3SSAF-00). Key specifications — Brand: DWYER; Humidity Accuracy: ±3% 20 to 80% 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.
Dwyer
DWYER Humidity Transmitters: 4 to 20mA, Thermistor (20K @ 25°C), Screw Terminals, 1/2 in NPS, RHP (MPN RHPX-3SSAF-00). Key specifications — Brand: DWYER; Humidity Accuracy: ±3% 20 to 80% 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.