Specifications Wavelength Range: 340nm~750nm Measurement Range: 0.000~3.000Abs Repeatability: ≤0.005 Linearity: ≤1.0% Cross-contamination: ≤1.0% Temperature Accuracy: +/-0.2 Colorimetric Pool: Titanium alloy Test Method: Absorbency, End-poit, Kinetic,Two-point, Standard Curve, Control Tube, Factor Packing Details: 680mmx530mmx600mm N.W.12kgs G.W.15kgs Features 1. 7.5" colorful touch screen, can be connected to a mouse, Windows operating interface. 2. Can store 200~500 test results. 3. Can show real-time reaction curve, and print calibration curve, kinetic reaction curve, quality-control curve and general report. 4. While not working, the instrument will automatically enter half-voltage sleep status to save energy.