Mighty Mule Wireless Driveway Alarm, Motion Alarms for Cars with Long Range Base Station, Weatherproof Driveway Alert, Ignores Animals and People (FM231)

• Instantly alerts you when someone pulls into or out of your driveway
• The outdoor electromagnetic sensor only detects vehicles; no false alarms due to animals, children, etc.
• Easy-to-install Electromagnetic Sensor Wand is buried next to your driveway, and detects mass metal moving within a 3-12 ft. radius of the wand.
• When a vehicle passes by the sensor, an outdoor transmitter communicates wirelessly to an internal base station up to 400 ft. away and sounds a pleasant chime
• Ideal for home and business
• Requires 2 AA batteries (Sold Separately)
• Low battery indicator on both the Indoor receiver and transmitter

Product Description\n\nWireless driveway alarm, electromagnetic technology detects vehicles entering & exiting driveway & alerts you with indoor chime, up to 400\' range from indoor receiver to driveway sensor, does not detect people or animals, transmitter requires 2 \"aa\" batteries, not included, note: use lithium alkaline aa batteries in colder climates, sensitivity adjustment 3\' to 12\' radius, dip switches for personalized transmission Codes..\n\nFrom the Manufacturer\n\nKeep track of vehicles entering or exiting your property with the Mighty Mule Driveway Alarm. (FM131) When a vehicle passes the sensor, the receiver emits an audible tone. Easy to Install and stake is included in kit. The electromagnetic sensor will sense large metal objects and send a signal to the interior base station to let you know someone is there. Install the batteries, near the installation site so the sensor can \"learn\" the area. If the batteries are installed in the home; the unit may not function properly.