Seco-Larm SD-8202GT-PEQ With Built In Transmitter.
Detex, EAX-300 Battery Powered Door Propped Alarm
10 Stks/partij T Type 9V Dc Batterij Snap Power Connector Kabel Plug Clip Vat Jack Connector Adapter Voor Arduino uno R3 Diy T Type|dc dc|cable dccable power - AliExpress
Detex EAX-500-GY-MC65 Battery Powered Door Alarm Gray