Diy Design, Super Easy To Set Up In Minutes-The KIT has been programmed already before shipped; the sensor is solar powered and no need replace batteries; wireless communication between the sensor and the alarm receiver, so the installation time can be as little as a few minutes
Fully Expandable System- the kit includes two solar powered motion sensors and one plug-in alarm receiver. expandable up to 32 sensors and unlimited alarm receivers for complete coverage of your property. 4 volume levels adjustment and 35 ring tones optional. Match different ring tones with different sensors around your property to differentiate where motion is being detected. Such as the melodies for the front door is Ding Dong, and for the backyard is Jingle Bells