A thermocouple is a device that is made of two different metals that produce a small charge when heated on one side. This small charge turns on an electromagnet which opens a valve and no longer restricts the flow of gas or water .
Fits a Number of Appliances
Technical specification
Waist Sizeac78cg11gzTypeThermocoupleToilet Cistern CapacityFTW--Supplier Part Number5181502Brand NameSime
Reviews
Sime 5181502 Thermocouple + High Limitthermostat Assembly