LANGIR 0-60 Degree Normally Open(NO) Mechanical Stego Cabinet Thermostat Temperature Controller Thermoregulator KTS011 Wide adjustment range Available with F or C scale Color coded temperature dials DIN rail mountable Thermostat NO (normally open):Thermostat turn on at temperature rise. When the temperature is higher than the set temperature, the contact is in the closed state Comes with a temperature dial.