DOOR AND WINDOW SENSOR
Door and window sensors are loud enough to detect entry, prevent kids and babies from getting out of the house, and protect your home office, garage, dorm, or apartment whether you're there or not. You're sure to hear its alerts from another room.
Don't worry about young kids making a mess, just put it up high so they can't reach it. It can be used on sliding doors, windows, drawers, and refrigerators.
The alarm and magnetic strip are separated by more than 0.39 inches (10 mm) and it keeps going off until you close the door (make them connect) or turn it off (switch to button "OFF").
A magnetic sensor switch detects your door or window.
Easy to install and operate, press the on/off switch to turn the power on/off, then insert 2 AAA batteries (batteries not included in the box), peel off the double-sided tape on the back, and attach the door handle alarm to your target location.
Prevent any accidents
keep kids out of cabinets, above-ground pools, and alcohol. Monitor wandering, sleepwalking, and elderly people getting out of bed by themselves to avoid all kinds of dangers.