【Multifunctional Air Pressure Gauge】: The tire pressure gauge accurately measures tire pressure. When the tire pressure is too low, you can quickly connect the air compressor through the 1/4 inch NPT interface to inflate the tire. When the tire pressure is too high, the pressure can also be released through the exhaust valve. 【Complete Accessories】: The water pressure gauge set includes 17 accessories: including American male head × 1, European male head × 1, Japanese male head × 1, plastic valve × 1. 4, replacement sealing ring × 2, conversion nozzle × 1, conical filling adapter × 2, valve core screwdriver × 1, thread sealing tape × 1, metal valve cover × 1, French valve × 1, inflation needle × 1 【Four different measuring units】: The pressure gauge has four different measuring units (PSI, BAR, KG/CM^2, KPA), which can be set through the conversion button. The measuring range of different units is 0 to 200 PSI. 0-14.2 Bar, 0-14.5 Kgf/cm^2, 0-1424 KPa, error accuracy range is ±1% 【LCD