DROK 0.56" Car Digital Thermometer With Probe/Sensor -55-125&Acirc;&deg;c Green LED Temperature Meter 3 Meters Cable DimensioDimensions : 48mm x 29mm x 19mm Sensor cable length: 3 meters Power Supply voltage: DC 7-30V ( with anti-reverse protection ) Measuring temperature: -55 to 125c Display: three 0.56 " Green LED digital tube