Product Review

Maybe you often have these trouble:1.When guest come in,you say"welcome" everyday or you don't want to say anyword.
2.Failed to know guest who outside the door when we are in indoor in time.
3.One person is tired to look at the shop, take a nap at noon, the guest come in but you don't know.
Or maybe you need a equipment which can not only welcome but also alarm ?
The KERUI M5 Infrared Door Detector Alarm System can be your best choice.

Product Feature:
1.Infrared sensor,automatic through body temperature induction
2.Integrating a variety of functions,welcome,wireless doorbell ,guard defence and so on.
3.Built-in siren ,up to 85dB
4.Support human voice,32 beautiful songs and alarm
5.Power safing design, Triple functions

Technical Parameters:
Infrared sensor trigger
Meterial:ABS
Installation height: 1.5m-2.5m 
Size: Height7.5cm,Width 8cm,thickness 4.5cm (with base - base can be flat or fixed on top) 
Detection Angle: Horizontal Angle of 110 degrees, vertical Angle of 15 degrees 
Power supply : DC 9-15V (battery not included)
Detection range: 4-8 m 

Package Including: 
1 X Infrared welcome doorbell,white
1 X Power adapter
1 X English manual

Please Note:
Please avoid the product installed in the rain or long time direct sunshine,strong magnetic,heavy cold and hot air place.
Kindly refer the User Manual before using
If you have any question or other needs,please email our customer service [email protected],we will give you professional reply in time at our work time 6PM~4AM PST,thanks.