Work Holding device is manufactured on the basis of the principle of time difference . IT’s widely used in the industrial environment, for continuous measurement of various types of liquid, such as water, oil, chemical solution liquid; As long as the liquid do not contain large concentration of suspended impurities,with a small amount of gas, we can use FTIM/UF series products.There are portable type, plate type, wall hung, explosion-proof, handheld, and so on in accordance with the different host style.