AMT/ZZ-2801 Coliform group online automatic water quality monitoring instrument uses enzyme substrate method to determine coliform group value in water sample, and realizes automatic measurement of instrument. The products have independent intellectual property rights. And the product integration is high, easy maintenance, high degree of automation. The amount of reagents is greatly reduced, saving more costs for operation and maintenance services. Reduced volume, save transportation costs. 7 inch color touch screen, large memory, fast speed. The instrument has automatic calibration, automatic range switching, liquid shortage alarm, fault alarm and so on. Cleaning liquid and waste liquid are separated, greatly reducing the cost of waste liquid treatment. A variety of measurement modes are available. The unique algorithm makes the measurement more accurate. Unique reagent formulation, anti-ionic interference, turbidity, chroma and other interference ability.