The AutoAlert vehicle detection system works by sensing the motion of a metal object that passes within fifteen feet of a buried sensor. When a car, truck, or any vehicle passes the vehicle detector probe, a signal is sent to the controller, which in turn uses a radio transmitter to activate a Wireless Chime in any room you choose.
Will not detect deer, birds, wind, leaves. Virtually free from false alarms! The AutoAlert Driveway Alarm and Vehicle Detector sensing probe is buried in or beside your driveway and only detects the metal of a vehicle as it moves by. You are then alerted by your wireless chime with a pleasant "ding dong" chime. The portable chime may be used in any room, the backyard, or even pool side. Optional chimes may be purchased to alert you throughout your home. Virtually free from false alarms!

Installing the Auto Alert
Installing the AutoAlert is quick and easy. You simply bury the sensor about 6" deep alongside your driveway - then, run the cable just under the lawn up to the controller. (Just use a sharp spade to open a shallow channel for the cable, then smooth it over by stepping on it.)Then, attach the three color-coded wires to the three clearly marked terminals in the AutoAlert Vehicle Detector Controller, usually located in the basement or garage of your home - and plug the adapter into 120-volt power. No hose across the driveway, no light beams to break, no buttons to push. All automatic, sensitivity-range adjustable, and hidden from sight.

The AL155 Vehicle Detection Driveway Alarm Includes:
AutoAlert Vehicle Detector controller with power adapter.
Portable, wireless chime.
Sensor probe with 100' direct burial wire (call for pricing on longer cable lengths).
Extra chimes and accessories are available.