wireless system alarm , pir sensor switch

 1. Detection range: 3-5 meters distance, angle of 105 degrees
2. Operating voltage: 4.5
3. Alarm sound level: 105dB (decibels)
4. Description:
1> It has a built-in PIR motion sensor, if it detects any movement, it will activate an alarm
2> No wire connection, you can simply install the battery
3> When the infrared sensor detects human movement will sound an alarm
5> Requires 3 AA batteries (not supplied)

 blister 

1.This product exported Mexico, the United States, Poland,Canada,England,and other countries.

2.We guarantee each product will be checked.

3.If there are bad products, we will promptly pay compensation to customers without any charge.

4.We also sell a lot of similar electronic products, varieties, good quality.