Feature and Function
<br /> 1.Infrared sensor adopt to digital fuzzy treament,automatic temperature compensation,Radio frequency anti-interference,has low rate of false alarm.
<br />  2.Inteqrating a varitey of functions,welcome,wireless doorbell,guard defece and so on.
<br />  3.2 choice of power supply:3*AAA battery and 9-15V power adapter.
<br />  4.Support human voice,32 beautiful songs and alarm.   
<br />Technicals parameters
<br />  1.Working current:less than 80mA
<br />  2.Working temperature:-10 ~+50 
<br />  3.Detection range:4~8m (25 )
<br />  4.Detection angle:110°
<br />
<br />Package content
<br />  M5 welcome doorbell*1 (battery include without power adapter)<p> <b><b><img src="https://contestimg.wish.com/api/webimage/57a867418ba7be5ea1b20c26-large.jpg"><img src="https://contestimg.wish.com/api/webimage/57a867418ba7be5ea1b20c26-1-large.jpg"><img src="https://contestimg.wish.com/api/webimage/57a867418ba7be5ea1b20c26-2-large.jpg></b></b></p>