Overview I smart 30 PRO is an advanced Electrolyte analyzer based on innovative EOD (Electrode on Chip) principle. I-Smart 30 PRO measures Na+, K+ and Cl- concentrations with 60 μl of blood. It reports patient results in 35 seconds and it eliminates maintenance by use of all – in – one cartridge. It also allows fast and error – free data entry using barcode scanner.