welcome alarm--Intelligent And Greeting Welcome Sensor 10m Warning Doorbell Door Bell Alarm

Description:

The product uses advanced micro-computer manufacturing technology,automatic body

sensing,high performance,energy-saving ease of use.Sensitivity,and without

inadvertently touching,interference,so that it can effectively monitor the

environment.More suitable for the needs of the market closer to be lives of

consumers,applicable to the office,home,shops,factories and other places,bringing

the cinvenience,but alse bring unexpected joy and a sense of security.
Put in three pieces of AAA 1.5V batteries.the static current is by microampere 3

pieces of AAA1.5V batteries can last for more than two months.
Effective alarming detecting distance is 5-10m,effective angle 110 degrees.Don't

surpass this area when you install it.
Nearly 20 kinds of optional music, and welcome voice
Adjustable detection angle
Specification:
Dimensions: 90 X 85 X 45 mm
Weight: 140g
Voltage:DC4.5V (3 batteries of AAA 1.5V)
Volume:75-95 decibels

Packing Content:

1 x The Intelligent And Greeting Warning Doorbell
100% Brand new.