What's the difference between automatic level and DS3 level? Who knows? thank you

Automatic Anping level and DS3 level can't be compared! Automatic leveling is the classification of grades! DS3 is the accuracy level of this level! In other words, the automatic level includes DS05, DS 1, DS3, etc., which are used for leveling the corresponding leveling points! Similarly, DS3 level also has electronic level, automatic level and additional level!