Standex Electronics supplies their reed sensors on an electronic printed circuit board where all electrical components are soldered in place, unlike other manufacturers that supply their sensors with only mechanical connections. These mechanical connections can rust and corrode, potentially producing faulty operation. Standex Electronics also supplies a high-resistance resistor that is also soldered on the PCB. This allows the vehicle’s on-board computer to perform an ongoing scanning operation that monitors and ensures that the reed sensor is properly plugged into the electrical system.