DIRECTED ELC 507M Car Alarm Sensor44; Essentials44; Tilt - Motion Sensor The All New Digital Tilt Sensor Is Ideal For Protecting A Vehicle From Theft By Detecting When The Vehicle The Sensor Auto Calibrates&#44; Referencing The Vehicle&rsquo;s Angle Of Inclination Each Time The Alarm Perfect For Protecting Vehicles With Upgraded Wheels And Tires