Chemray-420 Automated Chemistry Analyzer Automated Chemistry Analyzer is used to measure different chemicals and other characteristics in a number of biological samples quickly, with minimal human assistance. Features: - 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