Campark W10 Driveway Alarm Outdoor Motion Sensor Security System

About this item 【Solar Powered PIR Driveway Alarm】The motion sensor is powered by a solar panel installed on top of it so that you don't have to be changing batteries constantly. It also can be charged by the included USB charging cord if the sensor will be installed indoors or in dark areas. 【Superlong Receiving Range】The sensor detects motion and transmits a wireless signal to a receiver in your home, sounding an alarm and notifying you someone is coming up your driveway. The motion detector alarm has a range of up to 1/2 mile away(the actual range depends on the local terrain). 【Fully Expandable Alarm System】Driveway motion sensor can be added to unlimited receivers and one receiver can be added up to 4 sensors to fully cover your property. There are 6 volume levels to adjust, 4 total channels to choose from, and 4 optional chimes to match different motion sensors around your property to distinguish where motion is detected. 【Low False Alarm Rate】The driveway sensor alarm wirel