The Edgetech DewTrak II is a versatile and accurate dew point and humidity transmitter that leverages the fundamental precision of chilled mirror technology. It continuously measures the moisture content in gases by optically detecting condensation on a mirror surface, with the mirror temperature precisely measured by a platinum resistance thermometer, ensuring drift-free accuracy of ±0.2°C .

Designed for flexible installation, the DewTrak II is available with a choice of plastic (IP65) or aluminum enclosures and can be configured for wall, duct, pipe, or remote mounting . This adaptability makes it suitable for a wide range of applications, from HVAC monitoring to industrial process control.

The transmitter provides two selectable analog outputs (4-20 mA or 0-5/10 VDC) and two programmable alarm relay outputs, which can be assigned to functions like mirror cleaning indication or high/low alarms. Communication is handled via a bi-directional RS232 serial interface, allowing for remote programming and data retrieval. With a fast response time of 1°C per second and negligible hysteresis, the DewTrak II delivers reliable, real-time moisture data.