Expanded photo at bottom

The Tstat23 replaces mechanical thermostats in greenhouses to give more coordinated and better control of all the heating, ventilating and cooling equipment. The Tstat23 will eliminate the problem of the first stage of heating and the first stage of cooling running at the same time.

The Tstat23 will control 2 stages of heating, 3 stages of cooling and the circulation fans (HAF).

An alarm output will signal if the temperature of the greenhouse goes more than 10 deg F above or below the last heating or last cooling stages.