1,No moving parts, high durability 2,Convenient ... no zero drift Wide measuring range, turndown ratio 10:1 Low pressure loss, low cost Frequency output not affected ... DN300 Medium: Liquid / Steam / Gas Accuracy: Pipe Type: ±1.5% (gas, steam), ±1.0% (liquid); Inserted Type: ±2.5% (liquid), ±3 ... % (liquid); Inserted Type: 0.83% (liquid), 1.00% (gas) Rated Pressure: GB 1.6MPa, 2.5MPa, 4.0MPa, 6.4MPa; DIN ...