Vaisala Wi-Fi Data Logger HMT140 measures relative humidity and temperature using the connected probe and analog signals – RTD, voltage, current loops, and Boolean contacts. HMT140 comes with or without an optional LCD display.
HMT140 supports several different signal measurements (channels), which are monitored in Vaisala viewLinc Enterprise Server software:
- relative humidity (RH)
- temperature (T)
- switch contact
- voltage and current
Channel types are set at the factory during the time of order. Other wireless parameters can be changed at a later date using HMT140 Configuration Cable and Vaisala HMT140 Utility software.