Over 320 Degree Of Pointer Movement Adds Dial Scale And Resolution Providing The Most Accurate Reading,The Accuracy Of Digital Stepper Motor Gauges Is Increased By Utilizing A Self Calibration Sequence During Power Up,Features Metric And Imperial Scalings For Easily Relatable Readings w/o The Need For Mental Unit Conversions,Gauge Kit Includes 1/8 in. NPT Temperature Sender; 3/8 in. And 1/2 in. NPT Adapters,12 And 16 Volt Compatible; Compatible w/ Nearly Every Street Car Or Race Car Electrical System,Digital Stepper Motor Electric Instruments Provide Unmatched Accuracy,Unique Three-Dimensional Dial Design Gives Added Depth And Style To Your Custom Dash,Modern White LED Through-The-Dial Lighting Provides Clear Visibility During Nighttime Use,Includes Wiring Harness; Mounting Hardware; Instructions For Installation,Includes Data Acquisition Grade Temperature Sender Providing Unmatched Accuracy And Durability