Check the listing for details. Mechanical Thermostat Adjustable Compact N.C Temperature Controller Switch. Condition: New. Listed at 15.76 USD. Temperature Controller SwitchProduct Details1.【2 WIRE CONNECTING HOLE】The bottom of KTS011 mechanical temperature controller switch is with 2 wire interfaces,which can make wire connection become more sturdy2.【NORMAL CLOSE】When the ambient temperature is lower than the temperature set by the thermostat, the circuit close and the heater equipment starts. When the ambient temperature is higher than the temperature set by the thermostat, the circuit is disconnected and the heater equipment stops3.【0-60 DEGREE CELSIUS】The mechanical thermostat temperature controlling range is from 0°C to 60°C, perfect for using to control heater.The adjustable button is for easy and convenient to adjust the controlling temperature4.【WIDELY APPLICATION】The mechanical temperature control switch mainly use for controlling heating applications5.