Digital preset counter 1. 4 digit, 1 or 2 preset, size ... encoder; reset function 1. Features of Digital Preset Length meter :* Preset length meter, soft buttons operation, easily operate* 6 LED display ... output; optional control output: N, F, C, R* Counter speed: 30Hz/300Hz/1000Hz/5000Hz,selectable by software* Modulus:0 ... !IBEST ELECTRICAL CO.,LTD IBEST 4 Digit Length Meter and Counter , Reset Counter