Exquisite outward appearance, unique design

Built-in microcomputer, adopts advanced digital and fuzzylogical control technology;
Digital temperature compensation, anti-irradiation andanti-RFI;

3X1.5V AAA batteries (Not included)for the alert, externaltransformer also works

Chime, AA batteries (not included)

Easy to install and operate

Suitable for homes, office buildings, stores, etc.

Multifunction: antitheft, welcoming guest doorbell

Intelligence burglarproof. LED indicator in the alert

Electronic guest-saluting doorbells, the elite of the advancedcomputer manufacturing technology, apply the function of automaticmotion sensor. The excellent function, easy to use.

Wireless; motion-activated; effective alarming detectingdistance is 5-10 meters

Wireless Battery-operated Sensor Alarm