Burglar Alarm Kit

A piezoelectric sensor is attached to a window If the window is broken the energy released into the piezoelectric sensor will cause the relay to latch An on-board reset button returns the relay to an unenergised state Ideal part of a DIY home alarm system Single pole changeover relay rated at 24V 10A not suitable for direct switching of mains voltages Requires a 12V power supply

£3.99