Features: 1. Automatic storage of test results, review and print all parameters in test results; 2.Color touch screen, all parameters and histograms can be displayed in the same screen; 3.Support the expansion of external devices such as mouse, keyboard and printer; 4.Optical five reference ranges: newborn, children, adult women, adult men, and general use; 5.Multiple clogging elimination methods: high-pressure burning jewel hole, high-pressure reverse rinsing and soaking; 6.Automatic cleaning of sample probe; 7.By VGA interface, external projector or external display screen can be connected; 8.Chinese and English system language; 9.Built-in thermal printer, serial port printing and other printing methods; 10.With quality control management and calibration management function; 11.Use the cyanide-free SFT method (environmentally friendly) to measure hemoglobin; 12.Floating boundary algorithm and histogram abnormal prompt function. Performance: 1.Test parameters: WBC 3-part differential counting, 23 parameters (including WBC, RBC, PLT color histogram); 2.Measurement principle: counting by electrical impedance method, colorimetric method to measure HGB; 3.Quality control method: L-J, automatic drawing and printing of quality control charts; 4. Sample volume: trace detection, 10μL peripheral blood or anticoagulant blood, pre-dilution mode 20μL; 5.Precision: WBC (white blood cell) CV≤4.0%, RBC (red blood cell) CV≤2.0%, HGB (hemoglobin) CV≤2.0%, PLT (platelet) CV≤8.0%, MCV (average red blood cell volume) CV≤3.0% ; 6.Accuracy: the allowable relative deviation range: WBC≤±15%, RBC≤±6.0%, HGB≤±6.0%, PLT≤±20.0%, HCT (hematocrit)≤±9.0%; 7.Blank count: WBC≤0.5×109/L, RBC≤0.05×1012/L, HGB≤2.0g/L, PLT≤10.0×109/L; 8.Carry-over: WBC≤3.5%, RBC≤2.0%, HGB≤2.0%, PLT≤5.0%; 9.Linearity deviation: WBC≤±5%, RBC≤±5%, HGB≤±3%, PLT≤±10%; 10.Related coefficient: WBC≥0.990, RBC≥0.990, HGB≥0.990, PLT≥0.990; 11.Display: color LCD touch screen; 12.Detection channel: dual channel; 13.Test speed: 35 (or 60) specimens/hour, continuous working for 24 hours; 14.Data storage: It can automatically store more than 30,000 groups of complete results (each result has three histograms); 15.Interface: RS232 interface, VGA interface; 16.Power supply: ~100V-240V; 50/60Hz. Accessories: 1.Mouse 2.Thermal print paper 3.Power cord 4.Grounding cable 5.Serial cable 6.Pipe assembly (for Diluent, Hemolytic agent,Waste liquid respectively) 7.Touch pen 8.User manual 9.Key of device side board Physical characteristic: Dimension: 433mm(L)×300mm(W)×430mm(H) Weight: 19kg Operating Environment: Temperature: 18℃~25℃ Relative humidity: ≤80% Atmospheric pressure: 86.0kPa~106.0kPa Storage Environment: Temperature: -10℃~55℃ Relative humidity: ≤93% Atmospheric pressure: 50.0kPa~106.0kPa