Koso has over 30 years of experience in designing and manufacturing high quality products. They are known for their product's quality, reliability and capability. The changeable RPM scale allows the DB-03 Digital LCD Speedometer to fit on almost any engine application. The changeable backlight makes seeing your speedometer at night or high speeds possible. The Koso DB-03R Multifunction is the perfect fit for any sportbike Its blue backlight makes it very easy to read at night even at high speed The integrated indicator lights provides all the necessary information for any street use The changeable RPM scale allows this gauge to fit just about any engine application The Koso DB-03R also features a gear indicator and shift light which will allows you to shift in the perfect gear The Koso DB-03R also features: Speed, odometer, trip meter, RPM, temperature, volt, fuel level, and a lot more! Speedometer: Range: 0-225 MPH / 0-360 KMH Display unit: MPH / KMH Odometer: Range: 0-99999 miles / km Trip meter A/B Display range: 0-999.9 miles / km Resets automatically after 99999 miles / km Total hour meter Range: 0-99999 H. Tachometer: 10,000 / 12,000 / 15,000 RPM RPM warning / shift-light Range: 1,000-15,000 RPM Setting unit: 100 RPM Volt meter: Range: DC 8-18 V Flashing warning when voltage lower than 11.5 V or higher than 15.5 V Thermometer Range: 32.0-482°F/0-250°C Over temp warning setting range: 140°-482°F / 60°-250°C Setting unit: °F / 1°C Fuel meter: Display range: 6 levels Clock: 24 H Backlight color: Blue / Orange / Light purple Indicator light colors: Neutral (Green), High beam (Blue), Repeater (Green), EOBD (Amber), Oil (Red), Temperature (Red), RPM shift light (Red, Yellow) Effective voltage: DC 12V Gear Meter: N, 1, 2, 3, 4, 5, 6, 7, 8, 9 Meter size (W x L x H), 120 X 68.5 X 44.1 mm Meter weight: ±127.3 g