DC Bell Alarm Door Chime Plastic Bell Entry Alert Durable Intelligent Doorbell Sensor Factories

Label:Yes Color:white Item type:Intelligent Welcome and Greeting Warning Doorbell Sensor Size:13*11*5cm(5.12*4.33*1.97in) 100% brand new and high quality Power supply: DC 4.5V(3 No. 7 1.5V batteries) need to be equipped by yourself Quantity : 1pc Material: plastic Five points 1. Specifications: 1 sensor doorbell (without battery) 2. Material: The product is made of plastic, not easy to deform, long service life 3. Long detection distance: optical control distance 4-8 meters. The bells are triggered by detecting the movements of passing tourists. 4. Music tone :32 different melodies to choose from, selector switch to select vocals or different music/sounds, music selection button to change music/sounds. 5. Application scenario: Suitable for residential buildings, multi-storey buildings, multi-storey apartments, shops, office buildings, factories, etc. Notice: 1. the real color of the item may be slightly different from the pictures shown on the website caused by many factors such as brightness of your monitor and light brightness. 2. please allow slight manual measurement deviation for the data. thank for your understanding. 3. 1cm=0.39''.

Package included: 1pc door chime (batteries are not included)