This STI 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.
The sensor operates up to 300m (line of sight) away from the 4 channel voice receiver in your home. Additional sensors may be required for wide driveways exceeding 3.5m or to monitor an additional driveway.
People, animals and shadows will not trigger the driveway sensor.