Upgrade your wafer thermostat or replace an old electronic 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)** 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