Smart Environmental Monitoring
The POLWAX RHT-WM is a compact wall-mounted Temperature & Humidity Transmitter designed for accurate and reliable environmental monitoring. With a wide measuring range, high accuracy, 24VDC supply and industrial communication outputs, it provides a practical solution for HVAC, pharmaceutical, cleanroom, warehouse and industrial applications.
Precise Temperature & Humidity Monitoring
The POLWAX RHT-WM Temperature & Humidity Transmitter is designed for accurate monitoring of temperature and relative humidity in industrial, commercial and environmental applications.
Its compact wall-mounted construction makes it suitable for fixed installation where reliable environmental measurements are required. The transmitter measures temperature from -30°C to 80°C and relative humidity from 0–100% RH.
The RHT-WM series is available in two configurations: RHT50 WM without display and RHT100 WM with display. Both models are designed for integration into monitoring and automation systems through industrial output interfaces.
RHT50 WM
Wall-mounted Temperature & Humidity Transmitter without display. Ideal for applications where measurements are transmitted directly to an external monitoring or automation system.
RHT100 WM
Wall-mounted Temperature & Humidity Transmitter with display, providing convenient local visibility of measured environmental parameters.
RHT50 WM / RHT100 WM Specifications
Technical specifications for the POLWAX wall-mounted Temperature & Humidity Transmitter series.
| Specification | RHT50 WM | RHT100 WM |
|---|---|---|
| Media Compatibility | Air, non combustible, non corrosive gases | |
| Model No | RHT50 WM | RHT100 WM |
| Part Code | 0396 2020 | 0396 3030 |
| Display | Without Display | With Display |
| Measuring Range | T: -30 to 80 °C | RH: 0–100% | |
| Units | °C, % RH | |
| Inputs | Temperature & Humidity | |
| Accuracy | ±0.4 °C | RH: ±1.8% | |
| Dimensions | 75 × 35 × 75 mm | |
| Protection Class | IP54 | |
| Mounting | Wall Mount | |
| Language | English | |
| Supply Voltage | 24VDC | |
| Output | 4–20mA, RS485 MODBUS RTU / 0–10V Optional | |
| Scope of Supply | Calibration Certificate, GUI Software, Manual | |
Reliable Environmental Measurement
The RHT-WM combines temperature and humidity measurement in a compact wall-mounted transmitter for continuous environmental monitoring.
Temperature Measurement
Measures temperature across a wide range from -30°C to 80°C with an accuracy of ±0.4°C.
Relative Humidity
Measures relative humidity from 0–100% RH with an accuracy of ±1.8% RH.
Industrial Outputs
Provides 4–20mA and RS485 MODBUS RTU outputs, with 0–10V available as an optional output.
Wall-Mount Installation
The compact wall-mounted design enables convenient installation in fixed environmental monitoring locations.
Compact Dimensions
The transmitter has compact dimensions of 75 × 35 × 75 mm for space-efficient installation.
24VDC Operation
Designed for integration into industrial monitoring systems using a 24VDC supply voltage.
Designed for Accurate Climate Monitoring
The POLWAX RHT-WM combines accurate measurement, compact construction and industrial communication for dependable environmental monitoring.
High Measurement Accuracy
Provides temperature accuracy of ±0.4°C and humidity accuracy of ±1.8% RH.
Wide Measuring Range
Temperature measurement from -30°C to 80°C and humidity measurement from 0–100% RH.
Temperature & Humidity
Two important environmental parameters are measured through one compact transmitter.
Wall-Mount Design
Compact wall-mounted construction allows easy installation at the required monitoring location.
RS485 MODBUS RTU
RS485 MODBUS RTU communication enables integration with compatible industrial monitoring systems.
4–20mA Output
Standard 4–20mA output supports integration with industrial automation and control systems.
Optional 0–10V
An optional 0–10V output provides additional flexibility for compatible monitoring and control systems.
IP54 Protection
The IP54 protection class supports use in suitable indoor industrial and commercial environments.
Display Option
RHT50 WM is supplied without a display, while RHT100 WM provides a local display.
Easy Integration & Configuration
The POLWAX RHT-WM is designed for straightforward integration into temperature and humidity monitoring systems. The transmitter provides industrial signal outputs for connection to compatible controllers, monitoring systems and automation platforms.
The supplied GUI software supports configuration and setup of compatible transmitter parameters.
- GUI Configuration Software
- 4–20mA Industrial Output
- RS485 MODBUS RTU Communication
- Optional 0–10V Output
- 24VDC Industrial Supply
- Temperature & Humidity Measurement
- Calibration Certificate Included
- Instruction Manual Included
Connect Temperature & Humidity Data
The RHT-WM can be integrated with suitable industrial monitoring, automation and building management systems using its available output interfaces.
Suitable for HVAC, pharmaceutical, cleanroom, warehouse, food & beverage and industrial environmental monitoring applications.
Temperature & Humidity Monitoring Across Industries
The RHT-WM is suitable for environments where reliable temperature and humidity measurement is important for process quality, equipment performance and environmental control.
HVAC Systems
Monitor temperature and humidity conditions in air-conditioning and building climate-control systems.
Pharmaceutical
Support environmental monitoring in pharmaceutical production, storage and controlled areas.
Clean Rooms
Monitor critical temperature and humidity conditions in cleanrooms and controlled environments.
Storage & Warehouse
Monitor environmental conditions in warehouses, storage areas and distribution facilities.
Food & Beverage
Monitor temperature and humidity in food processing, storage and controlled production areas.
Agriculture & Greenhouses
Monitor environmental conditions to support controlled agricultural and greenhouse applications.
Laboratories
Provide continuous environmental measurement for laboratories and controlled testing environments.
Industrial Facilities
Monitor environmental parameters in industrial production and process areas.
Commercial Buildings
Support indoor environmental monitoring in offices, buildings and facility-management systems.
Product Resources
Access technical documentation and contact support for the POLWAX RHT-WM Temperature & Humidity Transmitter.
Reliable Temperature & Humidity Monitoring
The POLWAX RHT50 WM and RHT100 WM provide accurate temperature and humidity measurement in a compact wall-mounted design. With 4–20mA, RS485 MODBUS RTU and optional 0–10V output, the RHT-WM is designed for flexible integration into industrial and environmental monitoring systems.