... proofCurrent output: 4~20mA,standing for media densityVoltage output: ±0.5VDC,standing for media density.Frequency output: 1 ... in 1997, Its stable performance, cost performance for the domestic mass flowmeter has won the reputation ... of, And for domestic enterprises to design, develop CNG dispenser ... dispenser manufacturers. Coriolis Mass Flow Meter For CNG Dispenser