-Constant 360 tests per hour, up to 560 tests per hour with ISE( K,Na,Cl) -Reversed grating system with 12 wavelengths -Automatic 10 steps wash system, low carry over -ISE( K, Na, Cl) module (optional) -Built-in bar code scanner (optional) -24 hours non-stop reagent cooling compartment -Two independent mixing stirrers, two reagent probe, one sample probe -Pre-dilution and post-dilution for sample