As a safety precaution the rED wire of this product should be fused before connecting it to the positive (+) side of the 12V DC battery. we recommend using a 1 Amp, 3AG fast-acting type cartridge fuse (Littlefuse® #312 001 or an equivalent) inline with the rED wire of our product.. QUESTIONS: If after completely reading these instructions you have questions regarding the operation or installation of your instrument(s), please contact Auto Meter Technical Service at 866-248-6357.
Any Auto Meter Shift-Lite™, or Quick-Lite™ Shift-Lite can be used with tachs equipped with a black, Shift-Lite connector. NOTE 1: This tachometer has an air core meter. With power off, it is normal for the pointer to leave zero. When 12V power is applied, the pointer will move to the correct position. NOTE 2: Tachometers with two or three buttons use an advanced microcontroller circuit to.. Learn how to properly wire your Autometer Sport Comp tachometer with this step-by-step guide. From selecting the right wire colors to connecting the tach to your ignition system, we've got you covered. Get accurate RPM readings with your new tachometer today!