Xi'an yuan David Bo security equipment limited liability company   

        human activities that introduce the products target detection alert range, high decibel alarm - start site; high sensitivity, accurate alarm, timely; - the main components of the use of imported components, strong anti-interference, low false alarm rate; - with a special joint detection angle adjustment, free, fast and easy to use the compact, beautiful; it, fashion; micro power circuit design, section 4 7 battery; the adjustable sensitivity, detection distance.   product attributes - detection of human activities target alert range, high decibel alarm - start site; high sensitivity, accurate alarm, timely; - the main components of the use of imported components, strong anti-interference, low false alarm rate; - with a special joint detection angle adjustment, free, convenient and quick use; - compact, beautiful, fashion; - micro power circuit design, section 4 7 battery; the adjustable sensitivity, detection distance.   other descriptions of human activities - Detection Alert range target, high decibel alarm - start site; high sensitivity, accurate alarm, timely; - the main components of the use of imported components, strong anti-interference, low false alarm rate; - with a special joint detection angle adjustment, free, convenient and quick use; - compact, beautiful, fashion; - micro power circuit design, section 4 7 battery; the adjustable sensitivity, detection distance.   trading cash spot, welcome to visit us, address: Xi'an City Electronic Road West electronic mall 3A030-31