Manual Dosing Systems MDS MDS (manual dosing systems) are used in places where it is impossible or not necessary to perform the automation of dosage, it works on a manual basis with manual valves and manually configured parameters. Manualni Dozirni Sistem MDS1 Manualni Dozirni Sistem MDS1+ Manualni Dozirni Sistem MDS11 Manualni Dozirni Sistem MDS11+ Manualni Dozirni Sistem MDS22 Manualni Dozirni Sistem MDS22+