Htzsafe Solar Wireless Driveway Alarm System-1/4 Mile Long Transmission Range-Solar Powered No Need Replace Batteries-Outdoor Weatherproof Motion Sensor DIY Security Alert-1 Receiver and 2 Sensors KIT

Amazon.com Price: $79.99 (as of 01/06/2020 19:37 PST- Details)

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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,so no need replace the battery.(PS. the sensor also can be powered by the DC5V-12V power adapter or by the extra solar panel sold by HTZSAFE if the sensor be installed indoor or darkness areas)
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