Simply connect the two wire sensor lead to the professional computer and for accurate calibration set 20 m/A that’s it!

The new Shaw sensor connects directly to a factory computer line to measure the amount of moisture in dry air or gas without the need for a separate manufacturers of power supply or hygrometer.

With the sensor in room air, Shaw Automatic Calibration has entered the range of -80 deg c. which is less than 1 part per million of water vapour, to 0 deg c.