SIZE: 115mm (4.53 Inch) PRODUCT DETAILS: Speedometer: 0-140 MPH. Gauges Requires 12 Volt Negative Ground Systems. FEATURES: High-Precision Swiss-Style Stepper Motor Speedometer For Instant Vehicle Speed Readings. Featuring Opening & Closing Ceremony, Trip A / Trip B Oodomter, This Speedometer Peak Recall Functionality, Includes A Daisy Chain System And An External Warning Light For Added Visibility And Fully Programmable Warning Features For Enhanced Safety. DESIGN: Designed With A Sleek Aluminum Bezel And Housing, A Smoked Lens, 3-Color Display (White, Blue, & Amber) With Adjustable Brightness. Control The External LED Color With The Convenient External Control Box. INCLUDES: Speedometer, Power Wire, Power Daisy Chain Wire, Speedometer Sensor Wire, 3 Color External LED Control Box, Adjustable Outer Bezel, External Shift Light, Gauge Stand And Screws Set, RV Roll For Adjustment, Installation Instructions. One-Year Warranty For Non-Human Factor Damage & Free Lifetime Technical Support. Made in Taiwan. Unleash your vehicle's full potential and precisely track every burst of speed with the RACETECH Performance Electrical Speedometer. Built for demanding drivers and automotive enthusiasts, this gauge delivers critical, real-time speed data with race-inspired precision and advanced functionality, making it an essential upgrade for any 12V performance car.