Mengshen Mini Wireless Vibration Triggered Wedge Shaped Door Stopper Alert Home Security System Door Stop Alarm Block Blocking System Black(Pack of 1) MS-M68
- Also works as a wedge to prevent door from opening when powered off.
- 3 Sensitivity Levels - Low - Medium - High, with an adjustable sensitivity switch on the side.
- Portable and easy way to add piece of mind when traveling or working alone.