Detailed Product Description CNG pressure gauge ,install on to Gas Pipe,through check gas pressure, then send to switch to display the ... tankCNG/LPG Hall Pressure GaugeWorking Voltage: 12VInlet Voltage: 0 - 5VFixing way: radia or axial directionScale on the meter: 0-400 ... bar/5800 psiCover material: ABS, Stainless steel 1. 50mm CNG gauge, bottom connection, ...