This wireless driveway alarm detects people or vehicles up to 80' from the sensor and sends a radio signal back to the receiver up to 3000' away! Weatherproof and designed for outdoor use. Plugs into any standard wall outlet and is free standing or wall mounted. Choose from one of four different tones to alert you. Add additional transmitters (sold separately) and easily monitor up to four zones. Each transmitter can be programmed to sound a different tone.
