- Phone
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Address
2nd Floor East, Building A2, Shunheda Industrial Park, Liuxiandong Industrial Zone, Xili Street, Nanshan District, Shenzhen
Shenzhen Changhong Technology Co., Ltd
2nd Floor East, Building A2, Shunheda Industrial Park, Liuxiandong Industrial Zone, Xili Street, Nanshan District, Shenzhen

This instrument uses Nessler's colorimetric method to measure ammonia nitrogen in water, which has the characteristics of easy operation and high sensitivity. The principle is that ammonia nitrogen, which exists in the form of free ammonia or ammonium ions, reacts with sodium reagent to form a yellow brown complex, and the color of the complex is proportional to the content of ammonia nitrogen. The instrument is widely used for measuring water quality such as surface water, industrial wastewater, and domestic sewage.
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【 Host 】 | |||
| Measurement range: | 0.02-25mg/L (measured after dilution in excess range) | Basic error: | ±3%(F.S) |
| Repeatability: | ≤2% | Display: | Large screen LCD, Chinese |
| External dimensions: | 340mm×250mm×130mm | Optical stability: | The absorbance value of the instrument drifts less than 0.002A within 20 minutes |
| Power supply: | 220V | ||
![]() By using imported high-performance, long-life, and high brightness light sources, coupled with a highly stable optical system, the instrument achieves higher repeatability and accuracy. Using high-performance, low-power microcontrollers and large LCD screens with Chinese character menus for easy operation and intuitive display. |
![]() Records can be saved and queried without loss during power outages. It can store 100 working curves and 999 historical records without losing them during power outages. Fast measurement speed, results can be obtained in 10 minutes. |
![]() Equipped with a USB interface, data can be transferred to a computer. Equipped with printing function, it can immediately print or query test records for printing. |
| name | quantity | name | quantity |
| host | 1 unit | reagent | 1 set |
| Colorimetric tube | 10 pieces | power line | 1 piece |
| test tube rack | 1 piece | usb cable | 1 piece |
| Data collection CD | 1 piece | operation instructions | 1 copy |
| Product Qualification Certificate | 1 copy | warranty card | 1 copy |