Mengshen Mini Wireless Vibration Triggered Wedge Shaped Door Stopper Alert Home Security System Door Stop Alarm Block Blocking System Black(Pack of 1) - Product Features
- 3 Sensitivity Levels - Low - Medium - High, with an adjustable sensitivity switch on the side.
- Also works as a wedge to prevent door from opening when powered off.
- No installation required. Requires one 9 volt battery.
- Portable and easy way to add piece of mind when traveling or working alone.
- Extra loud alarm. 120 decibel alarm sounds when pressure is applied to door stop.