This spectacular gadget is designed to protect any door and alert users when the door opens. The 120 dB alarm is hard to ignore, and the wedge door alarm itself is robustly protected by a stainless steel outer casing. It also has a vibration sensor.

Material: PVC and stainless steel
Alarm: 120 dB
Shape: Wedge
Sensitivity levels: 3 (high, medium, low)
Power supply: 9-volt battery
Contents: 1 door alarm