Simply place the alarm behind any door, Prevents door from opening
Product size: 85x35x90mm;
Battery: 1 × 9V DC battery (notinclude);
Alarm Volume: 120dB;
Alarm off time:60s after alarm;
Setting up the door stopper alarm is as easy as sliding the power switch to the "On" position and placing the alarm at the foot of the door you want to monitor. If an intruder attempts to open the door, the wedge -shaped design will prevent it from opening and activate an above 90dB alarm. The alarm will scare off would-be intruders and alert you at the same time. With secure gripping ability, the alarm can function as a door stopper that prevents a door from being opened.
Dual Function: Alarm & Door Stopper.
This product is designed as a simple door stopper but can also function as an alarm system.
Keeps Intruders Out.
The +90dB alarm will sound for 2 seconds and repeats itself three times. Any sneaking intruder should be effectively shocked!
No Installation Required.
The easiest setup ever. Add batteries (9V PPP3, not included) and switch on the door stopper. Done!
Main door, your college dorm, your office; this door stopper can hold any door or secure passage through the door. All you need is a general door in its common habitat.
The LED indicator silently warns you when the battery is nearly drained. The flashing LED will remind you once the battery is running low.