Portable COD Ammonium Nitrogen Total Phosphorus Total Nitrogen Detector with high-intensity waterproof carrying case design, equipped with360° rotating detection module and dual-temperature zone digestion ensure accurate and stable measurement data. Color LCD touch screen, intelligent operation, fiber-optic detection technology with built-in high-capacity lithium battery, convenient for outdoor testing.Satisfy 《HJT399-2007: Determination of Chemical Oxygen Demand in Water Quality by Rapid Dissolution Spectrophotometry HJ535-2009: Determination of Ammonia Nitrogen in Water Quality by Nessler's Reagent Spectrophotometry GB11893-89: Determination of Total Phosphorus in Water Quality by Ammonium Molybdate Spectrophotometry Testing RequirementsDirectly measure the Chemical Oxygen Demand (COD) in water.Cash on Delivery (COD), Ammonia Nitrogen, Total Phosphorus, Total Nitrogen - Four Parameters. Customizable, Manufacturer Direct, Three-Year Warranty.

1. *Sample Testing:Rotary360° Color Tube Testing System

2.  Battery:Built-in high-capacity lithium-ion battery40000mAh

3. Optical Inspection SystemFiber Optic Testing System

4. Display: 7-inch color LCD touch screen，8 Touch-Sensitive Function Modules

5.  Automatic Calibration:The instrument features automatic calibration functionality.

6. Self-inspection:The instrument features automatic detection and error alarm functions.

7. Light Source:Imported Cold Light Sources (up to)Over 100,000 hours

8. Accuracy of inspection:≤±5%

9. Wavelength Range:340-900nm

10. Wavelength accuracy:±1nm

11. Wavelength Half-Width:4nm

12. Resolution:0.001

13. Repetitive≤±2%

14. Storage:Storable1 million sets of data, freely accessible for viewing

15. Measurement Items:COD - Cash on Delivery Ammonia Nitrogen Total Phosphorus Total NitrogenFour Key Indicators

16. Measurement Range：COD（2-20000 mg/L), ammonia nitrogen (0-1)50mg/L）、Total Phosphorus0-100mg/L、Total Nitrogen0-100mg/L）

17. Pre-storage curve:Pre-paid180 curves are available for users to select, calibrate, and modify.

18. Dual-zone dissolution:Dual temperature zone8-Hole Multi-functional Digestor，Independent temperature control

19.  Melting Temperature Range:0-200℃

20. The dissipation module features dual insurance high-temperature overload protection.

21. Specialized water quality dissolution system, solidifies routine dissolution items, one-touch operation for dissolution, automatic alarm prompt upon completion of dissolution

22. Printing Method:Standard built-in thermal printer，Print current and historical data at any time

23. Data Transmission:EquippedUSB and serial port transmission capabilities, optional Bluetooth interface