Motion Sensor Door Chime Alarm,BeiLan Wireless Home Security Driveway Doorbell,Visitor Business Door Bell Chime with 1 Plug-in Receiver and 1 PIR Motion Sensor Detector Weatherproof Alert Kit

User-Friendly: There are 2 modes choices (LED Flash/Sound and LED Flash), 3 levels volume adjustment (High/Middle/Low ) from 25-80dB and 38 Ringtones to choose.
Effective Distance: Working Range up to 328 feet (100 meters) between receiver and transmitter allowing you to place it a good distance from the receiver to warn you of arrival and departure of family members, unwanted guests or solicitors, or anyone who visits your home or business.
Wireless Plug-in Receiver: The portable wireless plug-in receiver plugs into any standard outlet. The sensor uses 3 AAA batteries (Not Included). Detection time delay in between motion sensor alerts is configurable from 15 seconds to 30 seconds, just place the sensor at the entrance to your driveway and the receiver inside your home.