Mighty Mule Fm231 Wireless Driveway Alarm � Electromagnetic Vehicle Detection, Indoor Receiver, 400 Ft Range, Expandable, Battery Powered, Easy Installation, Driveway & Property Security System MP3 Players * Comprehensive Control: Includes Modeling

* Comprehensive Control: Includes Modeling Lamp Control

1 inch models)

Features: Metra 72-7400 Compatible With Mazda/Nissan Speaker Harness Connector Sold As Pair

With Its High Magnification

Mighty Mule Fm231 Wireless Driveway Alarm � Electromagnetic Vehicle Detection, Indoor Receiver, 400 Ft Range, Expandable, Battery Powered, Easy Installation, Driveway & Property Security System MP3 Players * Comprehensive Control: Includes ModelingProduct Descriptionthe Mighty Mule Fm231 Wireless Driveway Alarm Provides Reliable Vehicle Detection To Help Secure Your Home, Business, Or Property. Unlike Traditional Motion Sensors, The Fm231 Uses An Electromagnetic Sensor System To Detect The Movement Of Large Metal Objects Like Cars, Ensuring Fewer False Alarms Caused By Animals Or Pedestrians. Once A Vehicle Is Detected, The Sensor Sends A Signal To The Indoor Receiver, Which Alerts You With An