Precision Environmental Monitoring
The POLWAX RHT150 DM is a high-precision duct-mounted Temperature & Humidity Transmitter designed for reliable environmental monitoring in HVAC, cleanroom, pharmaceutical, food, warehouse and industrial applications. With a stainless-steel 150 mm probe, wide sensing ranges and flexible industrial outputs, it provides dependable measurement and easy system integration.
High-Precision Temperature & Humidity Monitoring
The POLWAX RHT150 DM Temperature & Humidity Transmitter is a duct-mounted environmental monitoring solution designed for accurate and reliable measurement of temperature and relative humidity.
The transmitter measures relative humidity from 0–100% RH and is available with different temperature measuring ranges depending on the selected configuration. Its 150 mm stainless-steel probe allows the sensing element to be positioned inside ducts and other suitable measurement locations.
With 4–20mA and RS485 MODBUS RTU outputs, plus optional 0–10V output, the RHT150 DM can be integrated into compatible HVAC, automation, building-management and industrial monitoring systems.
RHT150 DM
Duct-mounted Temperature & Humidity Transmitter without display. Available with temperature ranges of -40 to 85°C or 0 to 100°C, with 0–100% RH humidity measurement.
RHT150 DM (HT)
High-temperature duct-mounted configuration with a temperature range of -40 to 125°C and 0–100% RH humidity measurement.
RHT150 DM (HT+HA)
High-temperature and high-accuracy configuration offering -40 to 125°C temperature measurement with improved accuracy of ±0.1°C and ±0.8% RH.
RHT150 DM Series Specifications
Technical specifications for the POLWAX RHT150 DM Temperature & Humidity Transmitter series.
| Specification |
RHT150 DM
0397 2030 |
RHT150 DM
0397 2031 |
RHT150 DM (HT)
0397 2032 |
RHT150 DM (HT+HA)
0397 2033 |
|---|---|---|---|---|
| Media Compatibility | Air, non combustible, non corrosive gases | |||
| Model No | RHT150 DM | RHT150 DM | RHT150 DM (HT) | RHT150 DM (HT+HA) |
| Part Code | 0397 2030 | 0397 2031 | 0397 2032 | 0397 2033 |
| Measuring Range |
T: -40 to 85 °C
RH: 0–100% |
T: 0 to 100 °C
RH: 0–100% |
T: -40 to 125 °C
RH: 0–100% |
T: -40 to 125 °C
RH: 0–100% |
| Accuracy |
T: ±0.4 °C
RH: ±1.8% |
T: ±0.4 °C
RH: ±1.8% |
T: ±0.4 °C
RH: ±1.8% |
T: ±0.1 °C
RH: ±0.8% |
| Display | Without Display | |||
| Inputs | Temperature & Humidity | |||
| SS Probe Length | 150 mm | |||
| Dimensions | 75 × 35 × 75 mm | |||
| Protection Class | IP54 | |||
| Mounting | Duct Mount | |||
| Language | English | |||
| Supply Voltage | 24VDC | |||
| Output |
4–20mA, RS485 MODBUS RTU
0–10V Optional |
|||
| Scope Of Supply | Calibration Certificate, GUI Software, Manual | |||
Precision Measurement for Demanding Environments
The RHT150 DM combines temperature and humidity measurement with a stainless-steel sensing probe and industrial communication outputs for reliable continuous environmental monitoring.
Temperature Measurement
Depending on the selected configuration, temperature measurement is available from -40°C to 85°C, 0°C to 100°C or -40°C to 125°C.
Relative Humidity
Measures relative humidity across the complete 0–100% RH range for continuous environmental monitoring.
Stainless Steel Probe
The 150 mm stainless-steel probe is designed for duct-mounted environmental measurement applications.
Industrial Outputs
4–20mA and RS485 MODBUS RTU outputs support integration with compatible monitoring and automation systems.
High Accuracy Option
The RHT150 DM (HT+HA) configuration provides improved accuracy of ±0.1°C for temperature and ±0.8% RH for humidity.
24VDC Operation
Designed for industrial installations using a 24VDC supply and suitable output interfaces.
Engineered for Reliable Environmental Monitoring
The POLWAX RHT150 DM combines flexible temperature ranges, high measurement accuracy, stainless-steel sensing and industrial communication for demanding monitoring applications.
High Measurement Accuracy
The HT+HA configuration provides temperature accuracy of ±0.1°C and humidity accuracy of ±0.8% RH.
Multiple Temperature Ranges
Select the suitable configuration for -40 to 85°C, 0 to 100°C or -40 to 125°C measurement.
0–100% RH Measurement
Full relative humidity measurement range supports continuous environmental monitoring.
150 mm SS Probe
The stainless-steel probe provides a practical sensing arrangement for duct-mounted installations.
RS485 MODBUS RTU
RS485 MODBUS RTU communication enables integration with compatible industrial monitoring and automation systems.
4–20mA Output
Standard 4–20mA output supports connection with industrial controllers, monitoring systems and automation equipment.
Optional 0–10V
An optional 0–10V output provides additional flexibility for compatible control and monitoring systems.
IP54 Protection
The IP54-rated enclosure supports suitable indoor industrial, HVAC and commercial environmental monitoring applications.
Duct-Mount Design
The duct-mounted construction is designed for environmental measurement in air-handling and ventilation systems.
Easy Integration & Configuration
The POLWAX RHT150 DM is designed for straightforward integration into temperature and humidity monitoring systems. Its industrial output interfaces allow connection to suitable controllers, automation systems and environmental monitoring platforms.
The supplied GUI software supports transmitter configuration and setup, helping users configure suitable measurement parameters and output settings.
- GUI Configuration Software
- 4–20mA Industrial Output
- RS485 MODBUS RTU Communication
- Optional 0–10V Output
- 24VDC Industrial Supply
- Temperature & Humidity Measurement
- 150 mm Stainless Steel Probe
- Calibration Certificate Included
- Instruction Manual Included
Connect Temperature & Humidity Data
The RHT150 DM can be integrated with compatible HVAC, building management, automation and industrial monitoring systems using its available output interfaces.
Suitable for HVAC, pharmaceutical, cleanroom, food & beverage, warehouse, agriculture and industrial environmental monitoring applications.
Temperature & Humidity Monitoring Across Industries
The RHT150 DM is suitable for environments where accurate temperature and humidity measurement is important for process quality, climate control, equipment performance and environmental management.
HVAC Systems
Monitor temperature and humidity conditions inside air-handling, ventilation and climate-control systems.
Pharmaceutical
Support environmental monitoring in pharmaceutical production, storage and controlled environments.
Clean Rooms
Monitor critical temperature and humidity conditions in cleanrooms and controlled production environments.
Storage & Warehouse
Monitor environmental conditions in warehouses, storage areas and distribution facilities.
Food & Beverage
Monitor temperature and humidity in food processing, storage and production environments.
Agriculture & Greenhouses
Monitor environmental conditions in agricultural and greenhouse applications where climate control is important.
Laboratories
Provide continuous environmental measurement for laboratories and controlled testing environments.
Industrial Facilities
Monitor environmental parameters in industrial production, process and equipment areas.
Commercial Buildings
Support indoor environmental monitoring in offices, buildings and facility-management systems.
Product Resources
Access technical documentation and contact POLWAX for quotation and technical assistance.
Reliable Temperature & Humidity Monitoring
The POLWAX RHT150 DM series provides accurate temperature and humidity measurement with duct-mounted installation, a 150 mm stainless-steel probe, 4–20mA and RS485 MODBUS RTU outputs, and optional 0–10V output. Choose the appropriate configuration for standard, high-temperature or high-accuracy applications.