SOLAR POWRED NO NEED REPLACE BATTERIES- The outside weatherproof motion detector is powered by built-in rechargeable battery and will be charged by the solar panels even on rainy and cloudy days.
WIDE RANGE OF APPLICATION- the wireless range from the sensor to the alarm receiver is up to 1/4 mile(actual range will vary depending on the local terrain); the sensor detection range is up to 50 feet.(it has 3 sensitivities adjustable,Hi=50ft,Mid=30ft;Low=25ft);Ideal for driveways,walking paths,and anywhere of your property you want to be alerted
EXTREMELY RELIABLE- improving the design of the infrared detection chip and the detection angle to reduce the false alarms from the sunlight/rain/fog/snow/wind/temperature change and etc. the outdoor motion sensor is waterproof(IP66),fully-enclosed design.the working temperature range is from -30 to 70