Sell ▲✠▼Wireless Entry Door Bell Welcome Alarm Motion Sensor Detector Doorbell White best price

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.