The Edgetech Instruments DewTrak II transmitter is a precision dewpoint hygrometer for industrial and process applications. It measures dew/frost point and relative humidity using a primary method chilled mirror sensor to continuously monitor the water vapor content of gases, and a platinum resistance thermometer to accurately measure temperature, without drift or the need for routine recalibration.

The DewTrak II is available with the Edgetech Instruments Model DX chilled mirror dew/frost point sensor with integral PRT temperature sensor for a wide operating range and excellent temperature stability. Outputs include 4 to 20 mA, 0 to 5 Vdc, or 0 to 10 Vdc plus an RS232 serial port and electrically isolated relay contacts.