... flowmeter measuring instrument / tool is a kind of digital velosity type flow meter, it is often used to measure the volume flow ... ,Liquid turbine flowmeterCaliber(mm):15~500Pressure(MPa):2.5~16Accuracy:±1.5%,±1%,±0.5%,±0.2%Fluid temperature:-20~+120(gas),-30 ... ~+80(liquid)Ambient:Temperature: -20~+55;Relative temperature: 5%~95%;Pressure: 86~106KPaPower source:8~24V.DC, 3.2V ...