Auto Meter 4957 Ultra-Lite II 2-1/16" 100-260 F Full Sweep Electric Transmission Temperature Gauge Modern white LED through-the-dial lighting provides clear visibility during nighttime use Gauge kit includes 1/8 NPT temperature sender, 3/8 and 1/2" NPT adapters, wiring harness, mounting hardware, and detailed instructions for installation Includes data acquisition grade temperature sender, providing unmatched accuracy and durability even in the harshest environments Auto Meters race proven digital stepper motor electric instruments provide unmatched accuracy while keeping hazardous fluids outside of the vehicle The accuracy of digital stepper motor gauges is further increased by utilizing a self calibration sequence during power up