Door Chime, Door Open Sensor Chime for Business/Home when Entering, Adjustable Volume, Easy installation, 400ft Range, 52 Chimes, M508+D7

Easy to
Install: Simply plug the doorbell receiver into any standard outlet and peel the double-sided adhesive tape on the back of the door sensor (or use the screw mount) to attach it to a door or window. Be sure to remove the insulating paper before using the sensor. 24/7 Protection for
Your Family: This child/home door sensor sounds an alert when a burglar opens the door and helps discourage break-ins (the entry alert chime activates when the magnetic sensor separates). Adjustable Volume Control & 52
Chime Options: Features 5 levels of adjustable volume from 0-110 dB. Offers 52 elegant chimes, ranging from the classic "Ding Dong" to various well-known melodies.
Memory function: retains the previously selected tune after re-plugging.
Wide Working Range: This wireless door open chime for home operates up to 400 ft in an open area. The magnetic door sensor automatically triggers the receiver when the magnetic strip is separated, and the receiver alerts immediately whenever the door or window is opened.
Mini Contact Sensor: Magnetic
door sensor (Size: 3.0 x 1.0 x 0.60 inch), magnetic
strip (Size: 1.7 x 0.6 x 0.4 inch). These are compact and can be installed or placed in any indoor location to provide a door entry chime/alert system