RHP-3N44 – High-Precision Temperature and Humidity Sensor for Cleanrooms
Posted on: 30/10/2025
In environments that demand strict control, such as cleanrooms, laboratories, or pharmaceutical and electronics manufacturing areas, maintaining stable temperature and humidity is critical. That’s why the Dwyer RHP-3N44 sensor is a top choice for BMS and HVAC engineers to ensure regulatory compliance and environmental stability.
1. Introduction to Dwyer RHP-3N44 Sensor
The RHP-3N44 is part of Dwyer Instruments’ premium RHP Series of temperature and humidity sensors, designed to deliver accurate, stable, and reliable environmental measurements for building monitoring systems and cleanroom applications.
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Manufacturer: Dwyer Instruments
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Origin: USA
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Humidity Range: 0 – 100% RH
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Temperature Range: -40 to 60°C
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Output Signal: 4–20mA or 0–10V (selectable)
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Configuration: Wall-mount, easy to install and maintain

2. Key Features of Dwyer RHP-3N44
High Accuracy and Long-Term Stability
Factory-calibrated with a very low margin of error (±2% RH), the sensor ensures reliable measurements even under harsh environmental conditions.
EMI-Resistant, Cleanroom-Friendly Design
The housing is made of dust-resistant ABS plastic with good moisture resistance, compliant with cleanroom standards. The smooth front surface is easy to wipe clean, maintaining high hygiene levels.
Seamless BMS & HVAC Integration
The RHP-3N44 easily connects to centralized control systems via standard analog signals, enabling automatic monitoring and control of air handling units, HVAC, and ventilation systems.
Easy Installation and Maintenance
The compact wall-mount design and terminal block wiring make installation and servicing straightforward for technicians.
3. Real-World Applications of RHP-3N44
The RHP-3N44 is widely used in environments requiring precise temperature and humidity control:
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Cleanrooms in pharmaceutical and electronics manufacturing
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Laboratories and research centers
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HVAC systems in smart buildings
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Warehouses, museums, data centers
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Food, medical, and biotech production facilities
By integrating the RHP-3N44, operators can continuously monitor environmental conditions, ensure product quality, and reduce energy consumption through intelligent control.
4. Benefits of Using RHP-3N44 in Cleanroom Systems

5. Why Choose Dwyer Sensors from DLK Vietnam
DLK Vietnam is the official distributor of Dwyer equipment in Vietnam, specializing in providing sensors and control devices for BMS & HVAC systems. When purchasing from DLK, customers receive:
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Genuine Dwyer products from the USA with full CO/CQ
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Expert technical consulting tailored to each project
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Professional warranty and after-sales policies
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Complete solutions for sensing – control – measurement in buildings and factories
6. Conclusion
The Dwyer RHP-3N44 sensor not only provides high-precision temperature and humidity monitoring but also enhances operational efficiency in cleanroom environments. It is an essential device for international-standard BMS, HVAC, and manufacturing systems.
Contact DLK Vietnam today for expert advice and the best pricing on the RHP-3N44 sensor and other Dwyer models!