... acid,nitric acid... Anti-interfere,anti-acid,anti-alkaline,anti-impurity Target type anti acidflowmeter,what make our ... Gas, fluid, steam, waterAnti-interfere, anti-acid, anti-alkaline,anti-impurityNo movable partModern sensormain technical indicesMeasured mediaLiquid, gas, steamNominal ... Power supplyBuilt-in 3.6V Li batter; external power supply of 24VDC; 220VAC (only for separate digital tube)Output ...