FAS1 Door Window Contact Sensor Alarm, Wireless Door Window Magnet Sensor Detector 120dB Alarm 3 Modes Wireless Door Open Sensor Alarm Chime Burglar Anti-Theft for Kids Safety Home Shop Security

   

Mode 1: Door Open Alarm After a window or door is opened, a 120 dB loud alarm will be activated. The alarm will continue to sound for 1 minute even if the window or door is closed again. Mode 2: Doorbell mode An bell ("Ding Dong") can be heard when opening the door-this means you will receive notification alerts, such as when the child leaves or comes back home; When you are busy in your store, if you have a guest to come in, the wireless door alarms magnetic will let you know the first time. Mode 3: Door Open Reminder Doors and windows opening method: When the wireless door sensor are open, an alarm will be issued, but once the doors and windows are closed, the alarm will stop