Fix The Main Unit Which Has On-Off Switch At The Side Of The Door & Window.
Attach The Bar Magnet To Door Frame/Window Frame With The Arrow Aligning With The Reference Line Of The Main Unit.
Switch To "On" Position Of The Main Unit So As To Be In Alert State, It Will Give An 90Wireless Door Window Sensor Burglar 90bp Alarm Magnetic Home Longer System Entry Burglar Security Battery Device Safety Home Alarm If The Magnetic Senor Has Been Separated From The Alarm Device When Someone Opens The Door/Window.
Please Turn Off The Switch When You Don\'t Need
Features:
Easily Mounted By Adhesive Tape To Window Or Door.
Magnetic Sensor Switch Detects Entry Protecting Your Home Or Office Whether You Are In Or Out.
Warning Door/Window Sticker Is Supplied Free In Package.
Operating By 2 x batteries(Not Include)