Reed switch technology is known to switch for millions and even billions of reliable operations. Long life switching is possible due to its hermetically sealed glass capsule and no wearing parts. In addition, reed switches draw no power in their normally open state. That makes them an ideal alternative solution to Hall Effect sensors which require an external circuit that draws power even in its passive state. A reed sensor uses an external magnet to perform contactless switching. Standex Electronics is one of the global leaders in reliable high-quality reed-switch-based solutions for high-end sensing applications.