Efficient, standardized and perfect enterprise management is the basic guarantee of Desktop Nitrite Colorimeter, nitrite tester, Portable Nitrite Meter quality and the driving force of enterprise efficiency and market competitiveness. Our company is an industry leader in test nitrite, offering a wide range of high-quality products and services to meet the needs of our clients. We strive to strengthen the construction of skilled talents in enterprises, improve the overall quality of skilled talents, and make great contributions to social and economic development. We strengthen our quality and skills through multiple trainings. Our company wants to set up a human resource department that can cooperate with the international team. We are committed to being a reliable and trusted partner for our clients. We are committed to operating our business with the highest standards of ethics and integrity.
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![Desktop Nitrite Colorimeter]()
Desktop Nitrite ColorimeterModel: YXSY-1, YXSY-2
Measuring Range: 0~0.25 mg/L
Power Supply: Power adapter (DC 5V/0.1A), 220V
Resolution: 0.001 mg/L -
![Portable COD Meter]()
Portable COD MeterModel: QW-COD-B
Ambient Temperature: 5 - 40℃
Relative Humidity: < 85% (no condensation)
Power Supply: AC 220V±10% / 50Hz -
![Portable Sulfate Meter]()
Portable Sulfate MeterModel: BLSY-200
Measurement Range: 0-200 mg/L
Resolution: 0.1 mg/L
Repeatability: 0.01
Linear Error: ± (5% FS+1) -
![Laboratory Benchtop Turbidity Meter]()
Laboratory Benchtop Turbidity MeterModel: WGZ-200AS, WGZ-400AS, WGZ-500AS, WGZ-800AS, WGZ-1000AS
Principle: 90° scattered light
Minimum Value (NTU): 0.1
Indication Error: ±6% (±2% FS) -
![Portable Manganese Ion Analyzer]()
Portable Manganese Ion AnalyzerModel: Portable Manganese Ion Analyzer
Measuring Range: 0~25 mg/L
Resolution: 0.01 mg/L
Repeatability: ≤2% -
![Benchtop Colorimeter]()
Benchtop ColorimeterModel: BSD-50AW, BSD-50BW, BSD-500AW, BSD-500BW
Accuracy: 1 PCU, 0.1 PCU, 1 PCU, 0.1 PCU
Calibration: 2, 3, 4, 4
Principle: Platinum-cobalt standard colorimetric method -
![Portable Nitrite Meter]()
Portable Nitrite MeterModel: YXSY-1, YXSY-2
Measuring Range: 0~0.25 mg/L
Power Supply: Power adapter (DC 5V/0.1A), 220V
Resolution: 0.001 mg/L -
![Benchtop Free Chlorine Meter]()
Benchtop Free Chlorine MeterModel: YL-1Z
Measuring Range: 0~5 mg/L
Power Supply: 220V
Resolution: 0.01 mg/L -
![Portable Bacterial Turbidity Meter]()
Portable Bacterial Turbidity MeterModel: WGZ-XB
Minimum Indication: 0.001 MCF
Measuring Range: 0～5 MCF, 1 MCF=3×108 CFU/ml
Indication Error: ±5％ FS -
![Benchtop TP Meter]()
Benchtop TP MeterModel: TZL-1
Measuring Range: 0~1.20 mg/L
Resolution: 0.01 mg/L
Repeatability: 1% -
![Thermostatic COD Digester]()
Thermostatic COD DigesterModel: COD-HX
Temperature Range: 32°C ~ 399°C
Accuracy: ±2°C
Heating Time: (170°C) < 30 min -
![COD Digester]()
COD DigesterModel: HW6, HW8
Quantity of Tubes: 6-tube, 8-tube
Measuring Range: 0～700 mg/L; sample can be diluted if exceeding the range
Reflux Device: Three-ball burr reflux condenser +...
Keith Gonzales
Although this is the first time we work together, we are very satisfied that you can give us the best price.
Amanda Kwon
Although the quantity of this order is not large, the other party provided us with free samples, which is very in line with our requirements and also reflects their confidence.
Fannie Schexnayder
This supplier has let me experience good service and product quality.
Rita Smith
I'm a regular customer of this store. In so many purchases, the quality of each product is very good. It is said that this company attaches great importance to the control of product quality.
Ronald Armstrong
In China, we have many partners, this company is the most satisfying to us, reliable quality and good credit, it is worth appreciation.
Donald Greene
This is a very smart product, it has saved me a lot of trouble! I love this product!
By constantly absorbing the essence of fashion design, combining modern production technology and cross-border design elements, the enterprise explores and innovates the production of environmentally friendly, healthy, safe, modern, simple, light luxury, fashion, comfortable and noble Portable Chlorine Dioxide Meter, Coffee Concentration Refractometer products. Hangzhou Qiwei Instrument Co., Ltd. is one of the most reliable manufacturers and suppliers of test nitrite in China, featured by quality products and good service. Please rest assured to buy bulk durable test nitrite in stock here from our factory. We also accept customized orders.