Door Window Alarm 10 PCS Home Security Magnetic Sensor 120DB Alert for Home Business Kids

Wireless Door Window Alarm | Door and Window Alarm | Battery Operated Window Alarm

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  • Wireless door window alarm sensors ,120 Db volume alert will warn you the door or window is opening.
  • Easy to install, including double-sided tape, no wiring or screws needed, just simply tear the tape and paste it. It will be a perfect choice for your family, office ,apartment,garage .etc.
  • Powered by 3* Batteries(included),usually it can standby for 12 months.Low battery indicator will inform you to change battery.(IT ONLY FITS ON FLAT DOOR AND FRAME.)
  • Instant alarm reminder,the alarm will be triggered and alarm immediately when someone opens the door ( the minimum trigger distance is 1 cm)
  • Not only can it be used to protect your family's safety, it also can be used to remind the forgetful old people that the doors and windows are not closed, and can even be used to prevent children from leaving the house without inform.