Description: Wireless doorbell no battery need and no wire. When users press the button, energy converting module inside will change the mechanical energy into electric energy. Then the wireless module...
Specification: Doorbell Type: Wireless; Type: Doorbells; Model Number: M88; Working frequency: 433MHz; Power Source: Battery; Power Source: AC; Receiving distance: 280M Remote ( in open area ); Sensor power supply:...
Specification: Type: Doorbells; Model Number: FA78; Doorbell Type: Wireless; Power Source: AC; Power Source: Self-powered; Power supply: 110V-240V; Working frequency: 433MHz; Ring Tone: 60 ringtones; Waterproof: Yes; Volume: 5 Levels...
Specifications: Material : ABS Plastic; Color : White; Receiver power supply : 3*AA alkaline battery(Batteries not included); Infrared motion sensor power supply : 3*AAA alkaline battery(Batteries not included); Mode :...