iHeto semi auto chemistry analyzer uses Principles of endpoint, fixed-time, kinetics, and turbidimetry tests There are eight wavelengths available, ranging from 340 nm to 670 nm. TFT touch screen display, 7.0" , Support for external keyboards and mice using USB, a Long-lasting halogen light, and a quartz flow cell that is permanent Over 100,000 test results are stored. Real-time reaction curve display, Integrated thermal printer, Up to 20 incubation positions