Door Chime, Wireless Door Open Sensor Alarm When Entry Business/Office/Store (500ft Range 51 Ringer Adjustable Volume) Home Alert Bell for Kid/Toddler Safety, 1 Receiver+3 Sensors

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About This 500 Ft Working Range: When a door or window is opened, the buzzer will instantly play the ringing alarm of your choice. Up to 500 feet of wireless connectivity in open a reas, ideal for home front door, office or store.Not suitable for metal doors Easy Installation: The receiver is plug-and-play with no wiring required! Easily mount the sensor with screws or double-sided tape. Secure the sensor by attaching double sided tape to the sensor and placing it on the door/window. Great for business entrances, office entrances, or store fronts! 5 Levels of Volume: Adjustable loudness (1-5 levels of volume). Maximum 110DB, suitable for noisy stores, classrooms; support switching mute mode, can be muted in the conference room or sleep. 51 Tones: Choose from 51 wireless door chimes (short/long tunes, buzzer alerts) for business/home entry notifications. Personalize ringtones to match shops, offices, or home security styles. Multi-Scene Use for Doors/Windows: Sensor powered by 1 AAA batteries (included);Compatible with shop entrances, office doors, bedroom windows, classrooms. Overview Color : white Brand : AMHEY Power Source : Battery Powered Battery Description : Alkaline Number of Batteries : 1 AAA batteries required. (included) Show more