Wedge door stopper alarm with 3 sensitivity settings - high, medium and low. Emits an ear-piercing 120dB alarm to provide security and an effective deterrent to intruders and opportunist thieves. Sensitivity can be adjusted to avoid false alarms. Ideal for use at home, workshop, garage and also dorm rooms and hotels. Easy and effective way of protecting yourself and your belongings, providing security and peace of mind. Compact design for discreet positioning at entrance points. Can also be used as a traditional door stop when switched off. Cost-effective and more comprehensive than a traditional alarm system. Requires 1 x 9V (PP3) battery. Features: Wedge-shaped portable alarm system emits a powerful, ear-piercing 120dB alarm when placed at the base of any door and the door is opened. Provides security and peace of mind at home, in dorm rooms and hotels when travelling. Adjustable sensitivity. Compact design for discreet positioning at entrance points. Requires 1 x 9V (PP3) battery 1 x 9V (PP3) Hardware & Fixings Burglar Alarms Specifications: Dimensions: H:0.1 x W:0.2 x D:0.1 cm Weight: 0.1 kg Colour: Multi Guarantee:6 Months Model Number: TOO-898104. Wedge-shaped portable alarm system emits a powerful, ear-piercing 120dB noise when placed at the base of any door and the door is opened. Provides security and peace of mind at home, in dorm rooms and in hotels when travelling. Adjustable sensitivity. Compact design for discreet positioning at entrance points. Requires 1 x 9V (PP3) battery. If the intruder pulls the door back, the alarm will still continue with this one, You DEFINITELY want the alarm to continue ringing (unless the switch is manually turned off). If you move this around on a daily basis (like I do), then you'll have to manually switch it off-then-back-on every time it triggers It also does a fine job of blocking the door from being forced open I had is set on low when I tested it and it was still really loud Loud Performs excellently little difficult to differentiate sensitivity when on high, low mode works just fine Ideal door stopper Very loud, although it has the setting, but they all sound very loud Turn on and off manually. Key Points Quantity Included: 1 - Sold Individually Extra Info: Door Stop Alarm Extra Info: Wedge-shaped portable alarm system emits a powerful, ear-piercing 120dB alarm when placed at the base of any door and the door is opened. Provides security and peace of mind at home, in dorm rooms and hotels when travelling. Adjustable sensitivity. Compact design for discreet positioning at entrance points.