Detailed Product Description SW-8855TR2 can inflate tire air very accurately, suitable for cars, SUVs, buses,trucks etc.MEMS design.High accuracy sensorLED display for easy use in dark conditionEasy readingPressure unit: PSI, BAR, KPA, KGF(optional)Pressure range: 0-160 psiAuto shut offPower: 2 x AAA battery (replaceable)