Wireless Door Chime, Door Sensor Chimes When Door Opens/Business Entering Door Open Alarm for Kid/Toddler Home Safety (500ft Range 51 Ringer) Door Dinger Buzzer Alert, 2 Receiver +5 Sensor

500
Ft Working Range: When a door or window is opened, the buzzer instantly plays the selected ringing alarm. With up to 500 feet of wireless connectivity in open areas, it is ideal for a home front door, office, or store. Not suitable for metal doors.
Easy Installation: The receiver is plug-and-play with no wiring required. 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 or window. Suitable for business entrances, office entrances, and store fronts.
5 Levels of Volume: Adjust the loudness from 1-5 levels. With a maximum volume of 110 dB, it is suitable for noisy stores and classrooms. The mute mode can be activated for use in a conference room or during sleep.
51 Tones: Choose from 51 wireless door chimes, including short and long tunes and buzzer alerts, for business or home entry notifications. Personalize ringtones to match shops, offices, or home security styles. Multi-Scene Use for Doors and
Windows: The sensor is powered by 1 AAA battery, included. Compatible with shop entrances, office doors, bedroom windows, and classrooms