Description
The Dwyer RHPX-2LHAB-00 is a high-accuracy outdoor relative humidity and temperature transmitter engineered for demanding HVAC building automation and environmental monitoring applications. Featuring a 4-20mA analog output signal, this sensor delivers precise, noise-resistant readings over long cable runs — making it an ideal choice for rooftop units, outdoor air handling equipment, and building management systems.
Key Features
- 4-20mA analog output for reliable, long-distance signal transmission
- 2% RH accuracy for precise outdoor humidity measurement
- Designed for outdoor installation with weatherproof housing
- Suitable for integration with building automation systems (BAS)
- Compact, rugged construction for harsh outdoor environments
- Low maintenance capacitive humidity sensing element
Application
The RHPX-2LHAB-00 is designed for outdoor ambient air humidity sensing in commercial and industrial HVAC systems. Its 4-20mA output is compatible with virtually all building automation controllers, data loggers, and DDC systems. The sensor is well-suited for economizer control, outdoor air quality monitoring, and energy management strategies that rely on accurate real-time humidity data.
Why Choose Dwyer
Dwyer Instruments is a trusted name in HVAC instrumentation, known for delivering accurate, durable sensing solutions. The RHPX series combines field-proven reliability with easy installation, helping technicians and engineers achieve consistent performance in outdoor environments.
Specifications
- Model: RHPX-2LHAB-00
- Output Signal: 4-20mA
- Humidity Accuracy: ±2% RH
- Sensor Type: Outdoor / Outside Air
- Application: Building Automation, HVAC, Environmental Monitoring







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