5301 Wireless Infrared Motion Sensor Welcome Alarm Intelligent Greeting Warning Doorbell, IR Distance: 10m(White) Filter-Attendance System One Package Size 13cm *

One Package Size 13cm * 11cm * 8cm / 5

Size: about 3

Using in anti-listening

2inch * 18

Carton Size 52cm * 30cm * 30cm / 20

5301 Wireless Infrared Motion Sensor Welcome Alarm Intelligent Greeting Warning Doorbell, IR Distance: 10m(White) Filter-Attendance System One Package Size 13cm *1. Brand new and high quality! 2. Uses advanced micro computer manufacturing technology, automatic body sensing, high performance, energy saving ease of use. 3. Sensitivity, without inadvertently touching& interference, so that it can effectively monitor the environment from a variety of account within the scope of its monitoring of human movement. 4. More suitable for the needs of the market closer to the lives of consumers, applicable to the office,