Brand New Genuine Worcester Bosch Temperature Limit Sensor / Overheat Thermistor. Up for sale is a genuine, brand new and unused Worcester Bosch temperature limit sensor (Part number: 8 722 963 858 0). It comes sealed in its original manufacturer packaging. This is a vital safety and regulation component that increases circuit resistance as it cools, communicating precisely with the boiler's PCB to manage heat output or shut down the system safely if overheating occurs.
