Aoje-Link MC-52 NO Wired Magnetic Switch Door Window Reed Switch Micro Alarm Magnetic Contact Security Silver Gray 2pcs electronics2022 Green for signal output Red

Green for signal output Red for IN+

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and LUX80 by ZoneFly

you need to connect it to the computer to playback the recorded audio files

Reach into the narrowest flute glasses and rest assured that no harm will come to your glasses

Aoje-Link MC-52 NO Wired Magnetic Switch Door Window Reed Switch Micro Alarm Magnetic Contact Security Silver Gray 2pcs electronics2022 Green for signal output RedAoje Link MC 52 NO Wired Magnetic Switch Door Window Reed Switch Micro Alarm Magnetic Contact Security Silver Gray 2pcs Magnetic Reed Switch Alarm Surface Mount Wired Contact Sensor Connect to the alarm. Sharp alarm will be heard when someone opens window or door in arming status,The reed switch is an electrical switch operated by an applied magnetic field. Keep your house safe with this door security alarm. 1. By screws to install, High Quality Zinc