... : stainless steel 2.Connection: 1/2, 1/4, 1/8 , 3/8 Pressure Gauge,tire pressure gauge,pressusre meter,gaugeKey Specifications ... : brass/SS304 Case diameter: 11/2, 2, 21/2, 3, 4 and 6-inch Connection: 1/8, 1/4, 1/2 and ... 3/8-inch Threads: BSP, NPT and PT Window: polycarbonate/safe ... -1bar to 0 to 35bar Accuracy: 1% for 3, 6-inch and 1.6 to 2.5% for 21/2, 1.5 and ...