... flow sensors 1>Hi-accuracy popularly:1.0%,Special calibrated:0.5% 2>Output:4-20mADC 3>Display:pointer,LED Metal tube flow ... >Output:4-20mADC 3>Display:pointer,LEDMetal tube flow sensorsFeature:1.Low pressure loss2.Hi-accuracy popularly:± ... Low velocity min.velocity of flow:less than1.5m/s4.Compensation with temperature and pressure compensation(option)5.Lubricate ... ,50,80,100,150mm metal tube flow sensors