Digital preset counter 1. 4 digit, 1 or 2 preset, size 48*48, 72*72 and ... sensor or encoder 1. Features of IBEST Digital Sensor Preset Counter:* Preset batch counter, soft buttons operation, easily operate* Dual ... optional control output: N, F, C, R* Counter speed: 30Hz/300Hz/1000Hz/5000Hz,selectable by software* ... IBEST CRN Series , Various Dimension , Preset Counter Use With Sensor or Encoder