... best after-service competitive price gas flow meterOnline removable differential gas flow meter0~2.5Mpa(high ... 1.5%Measure range110120130Working conditiondirty, sticky and high density have not effect to accuracyTemp-196+700Working pressure0-2 ... your special need. Mddia: Natural gas, gas, air, methane, butane, liquefied petroleum gas, hydrogen, sodium hydride, gas, helium, oxygen, nitrogen, argon ...