As our Benchtop Dissolved Oxygen Meter, Pen DO Meter, Benchtop DO Meter adopts leading-edge technologies and successful marketing approaches, we are now ahead of the competition in the industry. New Delivery for Pen DO Meter. We adhere to the strategic road of brand sustainable development. We infiltrate professional technology and profound experience in every link from research and development to sales. We always adhere to high standards and strict control. Innovation and development are our eternal theme, and customer satisfaction is our supreme pursuit. Our company values are based on the principles of honesty, integrity, and excellence. We pay attention to business reputation and provide customers with first-class technology, first-class quality and first-class service, which is well received by customers at home and abroad. We have a dedicated team of experienced professionals who ensure that our products meet the highest standards of quality and safety.
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![Pen DO Meter]()
Pen DO MeterPocket-size Dissolved Oxygen Meter for Aquaculture and Field Water Testing
Model: JPB-70A
Measuring range: (0 ~ 19.9) mg/L
Temperature: (0 ~ 40) °C
Basic Error: ±0.3 mg/L -
![Portable DO Meter]()
Portable DO MeterDissolved Oxygen Measurement Range: (0.00～20.00) mg/L
Temperature Measurement Range: (0～40)°C
Dissolved Oxygen Basic Error: ±0.3mg/L
Temperature Basic Error: ±1°C -
![Benchtop DO Meter]()
Benchtop DO MeterModel: JPB-605
Measuring Range: (0~19.99) mg/L
Temperature: (0~40) °C
Basic Error: ±0.3 mg/L
Temperature Fluctuation: ±1°C -
![Pen-Type Salinity Meter]()
Pen-Type Salinity MeterModel: YD-1H (High range), YD-1L (Low range)
Measuring range: 0~9999 mg/L, 0~2500 mg/L
Accuracy: ±2 mg/L
Resolution: 1 mg/L -
![Conductivity Sensor Element]()
Conductivity Sensor ElementModel: DJS-0.1, DJS-1, DJS-10
Vessel Constant: 0.1±0.02, 1±0.2, 10±2 -
![Portable Multi-Parameter Chlorine Ion Concentration Meter]()
Portable Multi-Parameter Chlorine Ion Concentration MeterModel: BXS-Cl
Measuring range: pCl: (0.00～6.00)pCl; Cl-: 0.35μg/L～35.5g/L; mV: (-1800～1800)mV
Resolution: 0.01pCl
Basic Error of the Electronic Unit: ±0.02pCl ±1 word -
![Portable Conductivity Tester]()
Portable Conductivity TesterModel: DDB-11A
Measuring Range: (0 ~ 199.9) μs/cm; (200 ~1999)μs/cm; (2.00 ~ 19.99)ms/cm; (20.0 ~ 199.9)ms/cm
Resolution: 0.1/1μs/cm; 0.01/0.1 ms/cm
Accuracy: Electro-meter:... -
![Pen-Type Dissolved Oxygen Meter]()
Pen-Type Dissolved Oxygen MeterPen-Type Dissolved Oxygen Meter for Aquaculture and Field Water Testing
Model: JPB-80A
Measuring range: (0 ~ 19.99) mg/L
Temperature: (0 ~ 40) °C
Basic Error: ±0.3 mg/L -
![Portable Dissolved Oxygen Meter]()
Portable Dissolved Oxygen MeterPortable Dissolved Oxygen Meter for Field Water Testing and Aquaculture
Model: JPB-607A
Measuring Range: (0 ~ 19.9) mg/L
Temperature: (0 ~ 40) °C
Basic Error: ±0.3 mg/L -
![Benchtop Dissolved Oxygen Tester]()
Benchtop Dissolved Oxygen TesterBenchtop DO Controller & Meter | Precision Dissolved Oxygen Control - Qiwei
Model: JPB-605
Measuring range: (0~19.99) mg/L
Temperature: (0~40) °C
Basic error: ±0.3 mg/L -
![Benchtop Dissolved Oxygen Meter]()
Benchtop Dissolved Oxygen MeterBenchtop DO Meter for Aquaculture and Laboratory Research
Model: JPB-650
Measuring range: (0~19.99) mg/L
Temperature: (0~40) °C
Basic error: ±0.3 mg/L -
![Industrial Online DO Controller]()
Industrial Online DO ControllerIndustrial Online Dissolved Oxygen Controller for Wastewater Treatment and Aquaculture Monitoring Measurement range: 0~20.00 mg/L
Resolution: 0.01 mg/L
Error: ±0.3 mg/L
Power...
William Ortiz
We evaluated the products soon after we received them, and the results showed that they were very easy to use and stable, so we hope that future cooperation will continue to satisfy both parties.
Samuel Reynolds
This supplier has helped me allay my worries with their professional service and high quality products!
Jeannie Craig
Such a professional supplier deserves more people to know!
Devon Steen
Your products are not as shoddy as those of other companies, you have excellent craftsmanship and are meticulous in your attention to detail, we are looking forward to this cooperation.
William Murphy
This trustworthy supplier has high-quality products and services.
Willie Tuttle
Our customers gave high praise to the company's products, saying that these products not only have high quality, but also have obvious advantages in price.
We regard the development of technology and the improvement of the quality of tds meter, Handheld Digital Brix Refractometer as the strategic focus of the enterprise. Hangzhou Qiwei Instrument Co., Ltd. is one of the most reliable manufacturers and suppliers of pen do meter in China, featured by quality products and good service. Please rest assured to buy bulk durable pen do meter in stock here from our factory. We also accept customized orders.