TRAIL TECH TTO Engine Temperature Meter 10mm Spark Plug Sensor (included)TEMPERATURE METER- Engine, water, or air temperature- Sensor options for all standard radiator hoses, oil lines and spark plugs- User selectable display: 30-500°F or 0-260°C- Measures current and maximum temperature, resettable- Spinning-arrow activity icon- Flashing dot indicates 6 second sample rate- Spinning-arrow activity icon- Peel-n-Stick or Bolt-onTemperatuurmeter, Temperatuur MeterTRAIL TECH Partnumber 742-ET1, 72-ET1