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 activates an electromagnet which opens a valve and allows the gas or water to flow through .
Fits a Number of Appliances
Technical specification
Waist Sizeab22cg94gvERP RatingNot ApplicableSupplier Part NumberCOMN9050020Brand NamePotterton