... meter,gas meter,Co gas flow meter,flowmeter: No movable part:0.5% 4~20mA,remote control 6~4000mm gas meter,air flow meter ... , vane-wheel, by-pass, orifice, differential pressure flow meter. It was widely used in fields of gas, natural ... adopt hang weight method to test the flow meter.Measurement range can be changed by replacing target ... manufactured to user requirements. SBL digital target Co gas meter