Auto Meter 3646 Sport-Comp PC Pyrometer Gauge Modern white LED through-the-dial lighting provides clear visibility during nighttime use. Size: 2-1/16inches(52.4mm). Range:0-1600F Acquire data for later review with one-touch Peak Recall functionality Set a custom alert specific to your vehicle & receive warning notification to highlight the need for driver attention Gauge kit includes Type-K Thermocouple, wiring harness, thermocouple mounting kit, mounting hardware, and detailed instructions for installation Auto Meters race proven digital stepper motor electric instruments provide unmatched accuracy which is further increased by utilizing a self calibration sequence during power up