1) Advanced microcomputer technology and automatic human sensitivity

2) Extraordinary performance energy saving and easy to use.

3) Special sound device Strong sensitivity non mislead and anti interference technology make it effectively detect he movement of the human in the detecting area of all environments

4) AC /DC operation meets different needs. It's suitable for dwelling houses tier buildings multiple apartments hotels factories hospitals or any other places. It doesn’t only bring the convenience but also the beat all happiness and security sense.

5) Multi music sound (Model) for choice: Alarming music Languages of Saluting guest.

6) Effective alarming detecting distance is 10m. Effective angle 110 degree. Don’t surpass this area when you install it.

7) Power Supply: 3 x AA Batteries (not include)