Please note: these may arrive with a black switch on end but the cover is white, this seems to be a supplier issue.
This surface mounting door contact switch is perfect for sliding and standard opening doors.
It is a push to break type switch meaning the switch is on all the time until it is pressed then it will break the electrical circuit.
This is the most popular type as this is perfect for putting lights inside cupboards as when the door is shut it breaks the circuit.
Unit colour: White
H 50mm x W 47mm x D 17mm