Wireless Driveway Monitor (solar powered)
Available from Safety Technology International, Inc. (STI)
This improved solar powered Wireless Driveway Monitor detects when a vehicle enters (or leaves your driveway). It uses a solar powered patented magnetometer sensor system. Movement of any large metallic (iron or steel) object close to the driveway sensor will transmit a signal to the receiver, causing the receiver to chime and flash.
People, animals and shadows will not trigger the driveway sensor.
The sensor may be placed as far as 1000 feet (line of sight) away from the receiver in your home. For best performance, mount the sensor on a 4x4 post, four to eight feet off the ground.
Additional sensors may be required for wide driveways or to monitor an additional driveway.