Features 1、Infrared sensor with strong sensitivity, it will not affected by light,can be sensed at day and night. 2、Strong sensitivity, no false alarm, anti-interference. 3、Effective real-time monitoring of human movement within the monitoring range. 4、Human body infrared automatic sensing, widely used in stores, homes, office buildings, factories and other occasions. 5、Keeps you aware of intruders or visitors anywhere around your home. Specification Features: Infrared sensor with strong sensitivity, it will not affected by light,can be sensed at day and night. Strong sensitivity, no false alarm, anti-interference. Effective real-time monitoring of human movement within the monitoring range. Human body infrared automatic sensing, widely used in stores, homes, office buildings, factories and other occasions. Keeps you aware of intruders or visitors anywhere around your home. Specification: Condition: Brand New Material: ABS Plastic Color: White Detection Angle: Horizontal: 110° Power Supply: 3 * AA Battery (not included) Detection Distance: Approx. 5m/16.4ft (when temperature is high in summer, distance may be shortened a little, which is a normal phenomenon, and temperature will recover when it drops) Package Weight: Approx 171g/6.0oz Package list: 1 * Welcome Sensor Note: 1. When the temperature is high in summer, the distance may be shorter. This is a normal phenomenon. When the temperature drops, it will recover. 2. Not including batteries! 3. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.