... Gauge,tire pressure gauge,pressusre meter 1.Case material: stainless steel 2.Connection: 1/2, 1/4, 1/8 , 3/ ... ,pressusre meter,gaugeKey Specifications/Special Features:Case material: stainless steel Bourdon tube: copper alloy/SS304 Connection material: brass/stainless ... Threads: BSP, NPT and PT Window: polycarbonate/safe glass Liquid filled: glycerin, silicone Dial range: Low pressure: 1 to 70kg/cm2 ...