Disc pad wear sensors are an advanced safety feature on many late model vehicles. They are electronic devices used to indicate how much material is left before disc pad replacement is required. Disc brake pad wear sensors are designed to “fail” as brake pads wear. They should be changed whenever the pads are replaced or when the vehicle’s warning light indicates.Protex high quality disc pad wear sensors are very competitively priced and a key feature is they fit not only Protex disc pads, but other brands of pads as well.Like all Protex products, they are sourced from world leading suppliers which are quality accredited and built to Original Equipment standards. There are over 130 part numbers available to suit most of the vehicles requiring disc pad wear sensors in the Australian market today.