Chuông Cửa Không Dây Cảm Biến Chuyển Động

Giới thiệu Chuông Cửa Không Dây Cảm Biến Chuyển Động

Description:
Infrared sensor adopt to digital fuzzy treatment, automatic temperature compensation, Radio frequency anti-interference,has low rate of false alarm.
Integrating a variety of functions,welcome,wireless doorbell ,guard defence and so on.
2 choice of power supply :3 AAA battery(not included) and 9-15v power adapter
Support human voice, 32 beautiful songs and alarm
4 level of adjustable sound volume
Specification:
Condition: 100% Brand New
Material: Plastic
Power Supply: 9-12V
Battery: 3 * AAA batteries (not included)
Detection Angle: 110°(horizontal), 60°(vertical)
Volume: 85db±5db
Bell Number: 32
Product Size: Approx. 5 * 8cm / 2.0 * 3.1inch
Package Includes:
1 x Door Bell

Note:
1. Please use good quality alkaline batteries, avoid using less electricity and electrolyte leakage ordinary carbon battery.
2. Non-professional workers do not repair without authorization.
3. Please avoid the product installed in the rain,with long time direct sunshine,strong magnetic,heavy cold and hot air place.
Giá USDC