The XTEC-VAT is a part of the ADF XTEC series of thermostats which is designed specifically for VAV controllers in HVAC.

This thermostat is designed to be used with the XTEC-VAV controller. It displays current ambient temperature and setpoint temparature as well as airflow.

The ambient temperature is measured using its in-built sensor while setpoint temperature can be adjusted through the up/down buttons provided.