Operating Principle and Description: J114 counter is used for accumulating and recording the number of times of to-and-fro movements of instruments or machinery. It can conduct pull count after coupling its input shaft pull arm with instruments or machinery. In addition to digital direct-reading display, it has a rotation zero device. After back to zero, it can still start cumulative count from zero. is mainly used in industries of textile, machinery, breakers, mines, etc.