Detailed Product Description

Product Name: PIR Sensor Door Bell

With red-ray-through infrared sensor and Lenses, can fast detect the weak infrared ray from body and automatically gives out graceful music to the master showing visitors coming when some people enters the detection range. It has features of very low consumption, stability and convenient installation. Be very practical for users. 

Specific features and Operation instructions:

1. Power for the door bell:  1(one) pc 9V (6F22 battery)

2. There is a power switch on the left side of the door bell. Switch it to OFF state, turn off the power supply; switch it to ON state, turn on the power supply.

3. It enters normal detection and work state after about 30S infrared warm-up time for first switch on power supply.(The led indicator light may be lightened several times during the 30S, this is common phenomena).

4. Static state current: ≤0.3mA

5. Detection distance: 6-8M(at parallel 120 degrees with ambient temperature 25)

6. Two installation ways: vertical hung-up or multi-directional changeable, users can choose suitable installation way according to different requirement. The effect will be the best for the installation direction in people cross (traverse) the detection area.

7. Suitable installation height: about 2M