The Automated Logic ALC/10K-2[XP]-D-4" is a Duct Temperature Sensor that uses Thermistor as its sensing element.  The sensor has a 4" (102mm) length probe.

The Automated Logic Duct Temperature Sensors are available in different variations or configurations that are best suited for your unique application.  The sensor probes are stainless steel and range from 2" - 18" in length making the duct sensor a perfect solution suitable for most duct shapes and sizes. 

The sensor can be configured with either a Thermistor or RTD sensor element and is available in three optional enclosures styles as Junction Box 2" x 4", BAPI-Box Crossover, and No Box.  The duct units can resist high humidity and condensation with the etched Teflon wires included and double encapsulated sensors allows for a watertight duct sensing solution.

All units are easy to install and mount directly to the duct wall.