Motorcycle Thermometer Digital Moto Cylinder Head Temperature Voltage Time RPM 4 in 1 Meter DC12V with Spark Plug Feature: 1. OR UNIT: Long press the button to select the temperature unit. The working temperature display unit can be either or to obtain a better fit 2. 4 IN 1: The four functions of temperature, voltage, time and RPM can be switched freely to meet your travel requirements 3. UPGRADED QUALITY: Compared with other thermometers, the light source is brighter, waterproof, accurate measurement, longer service life, uniform digital display 4. ALARM FUNCTION: The temperature display range is 0120. When the temperature of your motorcycle exceeds 120, the thermometer will flash early warning 5. TECHNICAL PARAMETERS: Effective working voltage is DC12V, with blue backlight, universal for motorcycleSpecification: Item Type: Motorcycle Thermometer Temperature Unit Display: or Temperature Display Range: 0-120(32~248) Product Function: Voltage, time, speed, engine temperature Thermometer Size: Approx. 60 x 30 x 13mm / 2.36 x 1.18 x 0.51in Temperature Warning: Flash warning when the temperature is higher than 120 or 248 Effective Working Voltage: DC12V Backlight: Blue Applicable Model: Universal for motorcyclePackage List: 1 x Thermometer 4 x Adapter 1 x User Manual 1 x Spark Plug 1 x Rubber Strip 2 x BracketNote: If the temperature display is abnormal after installation, you can first check whether the sensor wire plug connector is normal.How to use: WiringMethod: 1.BluecableconnectionbuttonontheDC12Vmainpowerswitch.(+) 2.Connecttheblackcabletothebody.() 3.ConnecttheredlinetothebatteryDC12V.(+) 4.Speed:Thewhitesignalwireisconnectedtothepurpleextensionwireharness,andoneendofthepurplewireiswoundaroundtheignitioncoil. 5.EngineTemperature:Theconnectorneedstobeinstalledinthesparkplug,andthesensorisconnectedtotheconnector.