The RHT-WM is an HVAC temperature and humidity transmitter with a low profile suited to BMS applications, offering simple loop-powered 2-wire wiring across a -20 to 70C, 0-100% RH range. Outputs can be configured to transmit temperature, relative humidity, or dew point, and calibration can be changed via the free SigNow application. It’s also available in a duct/wall-penetrating mount version (RHT-DM) with an extended sensor probe.
The RHT-WM incorporates a highly accurate and stable sensor for measuring relative humidity and temperature. The measured values are converted into a 4 to 20mA output signal linearly related to the reading. As it’s microprocessor-based, it can be fully configured using the TxConfig-USB communication interface and the SigNow application, available for Android and Windows.
Analogue outputs: 4 to 20mA or 20 to 4mA, 2-wire type, loop-powered. Resolution: 0.0008mA
Operating temperature: -20 to 70C, 0-95% RH (electronic module)
Connections: internal terminal block, via cable glands. Materials: PA-GF housing
Degree of protection: Enclosure IP65, Sensor IP40
Configuration: SigNow software for Windows or Android via TxConfig-USB interface. Certifications: CE Mark
Frequently Asked Questions
Do I need external configuration hardware? Yes the TxConfig-USB interface connects the transmitter to a PC or Android device running the free SigNow application for configuration, since this transmitter doesn’t have an onboard USB connector.
Can I output dew point instead of humidity? Yes the output can be configured to transmit temperature, relative humidity, or dew point.
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