These are a range of highly water resistant final exit setting buttons which use a magnetically operated sealed dry reed switch. The push button diaphragm is a flexible moulding and there is no metal spring to corrode or break. The push button has a momentary operation and is available as flush or surface mounting as either 'normally open' going closed or 'closed circuit' going open.

Connections are via an integral 1m long four core white fly lead. The flush mount version fits into a 30mm deep hole that is 19mm in diameter, supplied with a neoprene gasket and hardened steel zinc plated fixing screws.

The DA123-SBZR is a surface mounting 'normally open' push button and buzzer sounder with a white enclosure and black diaphragm button.