Htzsafe Solar Driveway Alarm System-1/2 Mile Long Transmission Range-Solar Powered No Need Replace Batteries-Outdoor…
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SOLAR POWRED NO NEED REPLACE BATTERIES- The sensor is powered by built-in rechargeable lithium ion battery which will be charged by the solar panel even in rainy days,so no need replace the battery.(PS. the sensor also can be powered by the DC5V-12V power adapter if you do not want to use the included solar panel)
WIDE RANGE OF APPLICATION- the wireless range from the sensor to the alarm receiver is up to 1/2 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$79.98