The Solar Driveway Alarm offers a wireless solution for monitoring your driveway with a long range of up to 1/2 mile. It includes 4 sensors and 1 receiver, all powered by lithium-ion batteries with a 365-day battery life. The alarm has 3 sensitivity settings and is designed for weather resistance. Easy to install with a wall mount, this driveway alarm provides peace of mind and security for your home or property.