CNG pressure gauge(sensor) Model:CNG; Accuracy grade: 2.5,'output signal: =-0.25v; Diameter of outer shell (mm):50,54,64,75; Scale on the meter:0~400 bar/ 6000psi (dual scales); Fixing way:radial,axial; Cover material material:ABS engineering plastic (black),aluminum alloy(LY-12CZ),Stainless Steel (SUS304); Scale face material:PC(Polycarbonate); Spring pipe material:bronze (Qsn6.5-0.1), Stainless steel (SUS316L); Connector part material:brass (HPb59-1), Stainless steel (SUS316L); Connector thread:G1/4(PF1/4),M14*1.5,ZG1/4(PT1/4),NPT1/4; Power source: DC(12+-2v