Note: This product has been replaced by STI-V34150
The STI battery powered driveway sensor sends a wireless signal to alert you when an unannounced vehicle enters your driveway. The receiver chimes and the ALERT light flashes red until reset (the chime stops, only the light continues to flash as a reminder). The driveway sensor uses a patented magnetometer system. Movement of any large metallic (iron or steel) object close to the driveway sensor will cause the sensor to transmit to the receiver.
Maximum optimal range for vehicle detection is 12 feet from the sensor. The sensor may be placed up to 1000 feet (line of sight) from the receiver in your home.