Vaisala HMT120 Wet Bulb / Dry Bulb Transmitter

The HMT120 Wet Bulb / Dry Bulb Transmitter for Cooling Towers, Current Loop.
The HMT120 is intended for outdoor wet / dry bulb measurements in HVAC cooling tower applications. The HMT120 is delivered with a weather shield for the transmitter unit to protect it from the outdoor elements. Also, a solar radiation / precipitation shield is provided for the probe to ensure precise and representative outdoor temperature and humidity measurement.

The HMT120 has two 4…20 mA loop-powered outputs corresponding to 0...+80°C (+32...+176°F) wet bulb and -40…+60 °C (-40…+140 ° F) temperature.