The wireless solar or battery driveway monitor with four-channel voice receiver (STI-V34100 or STI-V34150) detects when a vehicle enters or leaves a protected driveway. It uses a patented magnetometer sensor system. Movement of any large metallic (iron or steel) object close to the driveway sensor triggers a signal from the transmitter to the indoor receiver, causing the receiver to sound a voice message. STI’s voice receiver offers ten tones/tunes and 53 selectable words (in English or Spanish). Up to four tones/tunes or words can be programmed to identify driveway status (i.e., driveway alert, front driveway motion, etc.). It is able to receive up to four signals from additional transmitters. People, animals and shadows will not trigger the driveway sensor. The sensor may be placed as far as 1,000 ft. (line of sight) away from the receiver.

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