For a dewpoint range between -40ºC to +30ºCdp (-40ºF to +86ºF) the Model PDT dewpoint Transmitter is the ideal low cost solution for many applications. This compact two wire 4-20mA transmitter is designed for long term continuous measurement of moisture in process gases and compressed air, it is extremely easy to install, set up and operate, requiring little or no maintenance. For a complete system see the 

Model DS1200-PDT dew-point hygrometer.

Some common applications include:

and many more...

All our Dewpoint Instruments are supplied with a Certificate of Calibration traceable to international Standards.