YJ-120 series Mechanical Flow meter is used for fuel transferring application, diesel fuel, kerosene ect.These flow meters are reliable, inexpensive, and easy to install and simple to calibrate on the workplace.lt has the advantage of easy reading, quick resetting, and knob, flexible flow ports can be positioned vertically or horizontally. The easy reset register indicates product use up to 999/999.9.The master totalizer registers up to 999999/9999, 9999.Aluminium metering chamber, thread connection. Mechanical readout device with rotating wheels.