Upgrade your wafer thermostat or replace an old electronic thermostat with the 3255 Multi Turn thermostat. This unit offers more accurate adjustment of temperature over single turn thermostats as one complete revolution changes temperature only 1.7°F. **(Electronic Thermostats are guaranteed for use in GQF Cabinet incubators only)** 110 V. 400 W. Max This thermostat is the recommended replacement for non pre-set electronic thermostat models and wafer thermostat models.THIS IS A COMPLETE THERMOSTAT NOT AN INSIDE SENSOR FOR THE DIGITAL COMMAND CENTER