... Gauge,Freon Pressure Gauge,pressusre meter 1.Case material: steel or chrome plated 2.Connection: 1/2, 1/4 , 3/8 Pressure Gauge ... ,tire pressure gauge,pressusre meter,gauge,Freon Pressure GaugeKey Specifications/Special Features:Case material ... : BSP, NPT and PT Bottom or back Window: safe glass Dial range: 0 to 40 and 40 to 1,000Mbar Accuracy ...