... adapts to measure the liquid ratr and total flowrate of low viscosity 1>Accuracy:0.2%,0.5%,1.0 ... Tungsten carbonized shaft and bearing,be the same with medium of sully.3.Erode-resistant Be the same with sea ... water,ammonia,acetometer,etc.4.Bi-direction Pulse,4~20mADC,total and rate display in the field ... ~24VDC6.Explode-proof Ex d11 BT4/Ex ib 17.spectrum 2,4,6,10,15,25,40,50,80,100,150 ...