Inter control thermostats with onoff switch 135a 230v inter control 141331011d01 this adjustable thermostat has and integrated onoff switch and operates when the preset temperature is reached opening the contact the contact closes resetting the thermostat when the temperature drops by the differential suitable for use in deep fat fryers mini ovens baby bottle warmers water heaters etc inter control 141331011d01 120c 135a 230vac thermostat with onoff switch