KOSO TNT-05R Tachometer. Whether it is day or night, this small-scaled TNT-05 tachometer will prevent your engine from being damaged with its warning function for temperature and voltage. Gives different look to your motorcycle with its seven (7) changeable LCD display backlight colors. Specifications: Tachometer: R: 0 ~ 12,000 RPM. U: 1,000 (Large grid), 500 RPM (small grid). Effective temperature range: 14 ~ 140°F (-10 ~ 60°C). Effective voltage: DC 12 V. Indicator lights: Over-running light (red). Backlight colors: White / Yellow / Orange / Red / Purple / Blue / Light blue / Green. Volt meter: R: DC 8 ~ 18 V | Flashing Warning light = value. Backlight brightness: