DwyerOmega RHP-3D22 | Temperature and Humidity Sensor for HVAC & BMS

The DwyerOmega RHP-3D22 is a duct-mounted temperature and humidity sensor featuring 0-10 VDC outputs for both measurements. Utilizing a capacitive polymer humidity sensing element with ±3% RH accuracy, it is ideal for HVAC, BMS, cleanroom, electronics manufacturing and industrial environmental monitoring applications. DLK is the official distributor of DwyerOmega products in Vietnam.

How Does the RHP-3D22 Temperature and Humidity Sensor Work?

The RHP-3D22 sensor uses a capacitive polymer humidity sensing element to measure the relative humidity of the air. When ambient humidity changes, the sensor capacitance changes accordingly and is converted by the internal electronics into a 0-10 VDC analog output signal.

For temperature measurement, the device incorporates an integrated temperature sensor and provides a 0-10 VDC output corresponding to the measured temperature value. Both signals are transmitted to PLC, DDC, or BMS controllers for monitoring, data logging, and automatic control applications.

By measuring both temperature and humidity within a single device, the system reduces installation points and simplifies maintenance activities.

Practical Applications Across Industries

HVAC Systems in Commercial Buildings

In office buildings, shopping centers, and hotels, the DwyerOmega RHP-3D22 is installed in air ducts to continuously monitor the temperature and humidity of supply air. The measured data is transmitted to the BMS to optimize the operation of AHUs, FCUs, and central air conditioning systems.

Electronics Manufacturing Facilities

Electronic component manufacturing environments often require strict humidity control to minimize electrostatic discharge and reduce the risk of component damage. In these applications, the RHP-3D22 sensor helps accurately monitor environmental conditions within ventilation systems and technical rooms.

Cleanrooms and Pharmaceutical Facilities

In pharmaceutical manufacturing, cleanrooms must maintain stable temperature and humidity conditions to comply with production standards. The device is connected to a central control system to provide alerts whenever environmental parameters exceed allowable limits.

Indoor Swimming Pools and Sports Facilities

High humidity levels in indoor swimming pools can cause condensation and negatively affect equipment lifespan. The DwyerOmega RHP-3D22 helps monitor humidity within ventilation systems to maintain a safe and comfortable operating environment.

Benefits of Using the DwyerOmega RHP-3D22

Using the DwyerOmega RHP-3D22 provides numerous practical benefits for building owners and facility operators:

• Measures temperature and humidity simultaneously in a single device.
• Reduces installation costs and wiring points.
• Humidity accuracy up to ±3% RH.
• 0-10 VDC outputs compatible with most PLC, DDC, and BMS systems.
• Designed specifically for HVAC duct mounting applications.
• Supports continuous and stable environmental monitoring.
• Reduces maintenance costs compared to using multiple separate sensors.

Technical Specifications:

DLK's Commitment:

✅ 100% Genuine Products – Supplied with complete CO and CQ documentation.

✅ Competitive Pricing and Fast Delivery – Optimizing project costs and lead times for customers.

✅ Expert Technical Consultation – Support for product selection, system integration, and installation guidance.

✅ Transparent Warranty Policy – Accompanying customers throughout the product lifecycle.

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Contact DLK TRADING AND SERVICES CO., LTD: 070 357 0101 | info@dlk.com.vn | https://dlk.com.vn/