Polini tachometer & temperature display with extensive configuration options. All data on an easy to read display. The maximum temperature & revs are stored. Gear indicator is configurable. Coloured warnings are displayed when configured values are exceeded. Please note the instructions (PDF download)! Digital display revs: 0-20,000 rpm increments: 100 rpm bar graph display range: 0-10,000 / 15,000 / 20,000 rpm shift light indicator can be configured: 5,000-20,000 rpm (configure gradation 100 U/min) speed memory (max. RPM): Adjustable 0-20,000 rpm Pulse: 2-stroke: 1, 2, 3, 4, 5, 6, 4 stroke: 1, 2, 3, 4, 5, 6, 8, 10, 12 thermometer display: Degrees Celsius or Fahrenheit thermometer A/B display: 0-250 ° C (32-482 ° F) thermometer display unit: 0.1°C (°F) thermometer alarm setting range: 60-250°C (140-482°F) thermometer alarm settings: 1°C (°F) temperature storage: 0-250°C (32-248°F) Voltmeter (display only when coupled with the wiring) voltmeter display range: 8.0-18.0 V display unit: 0.1 V clock 24 hours format battery type: CR 2032 (life approx. 2 years) external power: DC12V dimensions approx. 88x42x21mm weight ca: 73 g display alarm colors: Temperature A (blue), shift light (red), temperature B (green) Please note: Not to be used on vehicles with single spark ignition system (ignition coil in the plug).