... 40, 50, 63, 80 , 100mm 2.Connection: 1/2, 1/4, 1/8 , 3/8 Pressure Gauge,tire pressure gauge,pressusre ... 40, 50, 63, 80 and 100mm Connection: 1/2, 1/4, 1/8 and 3/8-inch Threads: BSP, NPT ... or back Window: acrylic Dial range: Low pressure: 1 to 70kg/cm2 Middle pressure: 100 to 250kg/cm2 ... to 4-inch: 1%Operating temperature: -20 to 60°C Customer's designs are acceptedStandard Dry Pressure Gauge with Acrylic ...