Тахометром

Model J116 Type Length-Measuring counter REV counter 1-is a kind of mechanical rotation counter. 2-Driving the active axis, the internal gears mechanism drives the counting wheel to carry out the decimal adding counting, the counting value is added 1, 2,5 when the active axis rotates one round anticlockwise. 3-Pressing of the reset button can reset the number of the counting wheel simultaneously. 4-The figure of the counting wheel can be used to measure the rotation speed of various machinery and to measure length, depth and flow amount etc., 5-and it is widely applied in machinery, wire-making, tape-making and printing etc., 6-it is therefore a necessary tool for measuring and recording.