SOLAR WIRELESS ALARMS: The outdoor weather resistant solar motion sensor is powered by built-in rechargeable battery, and the battery will be charged by the top mounted built-in solar panel on rainy or cloudy days. These is also a charge jack at the back of the sensor which can be charged by the included USB charging cord or the extra solar panel sold by HTZSAFE if the sensor will be installed indoor or some darkness areas. Solar powered no need replace batteries.

400 METERS LONG WIRELESS TRANSMISSION RANGE: Both the solar motion sensor and plug-in receiver pick up alarm signals up to 400meters away(actual range will vary depending on the local terrain), it is a great solution even you have a large perimeter or property to monitor. The system adopts advanced wireless transmission technology(FSK+FHSS) to avoid the wireless signal interference from other devices.

15 METERS WIDE MOTION DETECTION RANGE: The solar motion sensor will detect moving people or vehicles from 7.5meters to 15 meters in front of it. Advanced motion detection chip and improved detection angle to reduce the false alarms from dead leaves/small animals/sunlight/wind/temperature changes and etc. It has 3 adjustable sensitivities( Low=7.5meters; Medium=9meters; High=15meters), ideal for driveways, walking paths, yard, garage, gate, pool and anywhere of your property you want to be alerted.

PLUG&PLAY,SUPER EASY TO INSTALL: Turn on the solar motion sensor and plug the receiver into the outlet, here we go. The unit has been programmed before shipped, place the sensors to walls, fence posts, trees, or any other surface, the installation time can be as little as a few minutes.

FULLY EXPANDBLE SYSTEM&GUARANTEED 2-YEARS WARRANTY- Expandable up to 32 sensors to 1 receiver, and 1 sensor can be added to unlimited receivers for complete coverage of your outdoor/indoor property. 4 volume levels adjustment and 35 optional melodies. Match different melody with different sensors around your property to differentiate where motion is being detected. (Such as the melody for the front door is "doorbell", and for the back yard is " Backyard".)