Fishing Line Counter Digital Clip-on Yardage Deepth Gauge 999FT 10 Groups Data Trolling Jigging 180 degree 2-Way Adjusta

Unit Feet/Meter switch. Maximum counting length is 999.99m(or ft) each group, resolution 0.1m(ft).
Memory Mode Available. Can store up to 10 groups of individual counting data. So if expecting counting length is longer than 999.99m(or ft), you can split up the whole length into serval sections and store in different groups, then sum all groups