Motion Sensor Door Entry Alarm - Battery Operated

Door Chime - Security Alarm - Mini. Use as a security alert or a pleasant visitor entry announcer. This unit gives "ding-dong, hello, welcome." This device is both security alarm and a welcoming device when it detects movement. This unit is so easy to install.

This can be used if you have net cafe, shops, boutiques, clinics can be at stores, room and homes, clinics, dorm room, lockers, storage areas, garages, offices, hotels and other areas.

Operated by button cells. Batteries are included. Plus another EXTRA three button cells for a total of 6 bundled batteries. Roughly 3/4 inch by 2 inches by 1 1/2 inches, easily place this door chime.