AutoMeter vehicle speed sensors generate the signal you need to make installing an AutoMeter electric speedometer in your vehicle quick and easy. Compatible with GM and Chrysler transmissions with a 7/8" -18 threaded speedometer cable output, this vehicle speed sensor outputs a 16 pulse per revolution (PPR), 12v square wave signal. Featuring a mechanical cable output, this sensor has the ability to retain the mechanical cable in applications with mechanically driven cruise control.