RHPLC-3N22 – Accurate Temperature & Humidity Sensor for HVAC Systems
Posted on: 10/08/2025
As buildings are increasingly designed with smart and sustainable technologies, the need to monitor microclimate conditions in modern constructions such as offices, factories, hospitals, and commercial centers has become more critical than ever.
Among the most essential factors are temperature and humidity—seemingly simple elements that play a vital role in equipment performance, human health, and overall air quality.
Therefore, choosing a reliable sensor to monitor these parameters is a top priority for HVAC engineers. RHPLC-3N22 – a precision temperature and humidity sensor from Dwyer (USA) – is a trusted solution for high-accuracy applications requiring stability and reliability.
1. Introduction to RHPLC-3N22
In modern HVAC systems, precise control of temperature and humidity is essential to ensure operational efficiency, indoor comfort, and air quality. The RHPLC-3N22 sensor from Dwyer Instruments (USA) is an ideal solution for accurate measurement of both parameters.
RHPLC-3N22 is part of the Precision Humidity/Temperature Transmitter series – a high-end product line specifically designed for centralized HVAC systems, BMS (Building Management System), and high-precision environments like cleanrooms, labs, and manufacturing plants.
2. Key Features of RHPLC-3N22
2-in-1 Measurement: Integrated sensor for both relative humidity (RH) and temperature, helping reduce cost and simplify installation.
High Accuracy:
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Humidity accuracy up to ±2% RH
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Temperature accuracy ±0.3°C
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LCD Display: Clear, easy-to-read on-site display for convenient monitoring.
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Flexible Output Signals: Supports analog 4-20mA or 0-10V output, easily integrated with existing monitoring and control systems.
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Durable Design: Rugged construction with dust and moisture resistance, suitable for both industrial and commercial environments.
3. Typical Applications of RHPLC-3N22
RHPLC-3N22 is suitable for various environments that require continuous and accurate temperature and humidity monitoring:
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Commercial buildings and high-rise offices
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Electronics, food, and pharmaceutical factories
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Laboratories and cleanrooms
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Hotels and shopping malls
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Hospitals and healthcare facilities
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Cold storage and humidity-sensitive storage areas
4. Why Choose the RHPLC-3N22 from Dwyer?
Trusted Brand: Dwyer is a globally recognized manufacturer of measurement instruments, especially in HVAC.
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Long-Term Reliability: Durable and stable performance over time
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Easy Installation & Maintenance
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Seamless Integration: Works smoothly with BMS, SCADA, and PLC systems
5. DLK – Authorized Distributor of Dwyer Sensors in Vietnam
DLK is proud to be the official distributor of Dwyer sensors in Vietnam, including the RHPLC-3N22 model. We provide full CO/CQ certifications and clear warranty policies.
DLK guarantees:
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Nationwide shipping – fast and reliable
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Products always in stock – on-site technical support
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Tailored solutions for each project
6. Basic Technical Specifications of RHPLC-3N22
RHPLC-3N22 is not just a sensor – it’s a comprehensive solution for professional HVAC systems. Let DLK accompany you in building smart, modern, and sustainable environments.