Ehomely Wireless Home Security Driveway Alarm Door Entry Bells Chimes Motion Sensor Detector Alert Alarm System Doorbell White

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Ehomely
Ehomely Wireless Home Security Driveway Alarm Door Entry Bells Chimes Motion Sensor Detector Alert Alarm System Doorbell White
Package contains: 1x driveway alarm 2x screw wide detect range: detection range of the infrared sensor is approximately 8-10m/26-32ft, which can effectively keep you alerted of intruders or visitors. Chime tones:this alarm doorbell designs with 16 optional ringtones, press "music"button for personal preferences.
Can be used at your house, apartment, office, hotel, store and many other places. Power suply:put in 3 pieces of aaa batteriesnot included in the package or use AC power adapter, but do not use them at the same time. The batteries usually stands for 2 months. Easy to install:it is easy to install, the only problem need attention is adjust the sensor's angle to the entry you want to detect.
Wide application: use as a welcome doorbell chime at daytime and a burglar alarm system at night.