1. Made of high quality eco-friendly material with high sensitivity.
2. Adjustable sensitivity,more reliable.
3. Password setting design, only the owner can operate perfectly.
4. Energy saving design,the battery can work for a long time.
5. Simple and easy to install.
6. Power: 6F22 9V battery
Working Current: <100mA
Sound: >105db
Working Temperature: -15 degree ~75 degree
Storage Temperature: -40 degree ~85 degree
Ambient Humidity: 5%~98%.