Turbine flow meter for liquid Advantages: High accuracy: 0.2%, 0.5%, 1% Wearable: Tungsten carbonized shaft and bearing, be the same with the medium of sully Erode-resistant: Be the same with sea water, ammonia, acetometer, etc Bidirection: Measuring bidirection flow (optional). Multi-output: Pulse, 4~20mA DC, total and rate display in the field. Power supply: 5~24V DC Explode-proof: Ex d II BT4 DN range: 2~300mm......