We have the most advanced production equipment, experienced and qualified engineers and workers, recognized quality control systems and a friendly professional sales team pre/after-sales support for Manufacturing Companies for Benchtop Whiteness Meter, PH Glass Composite Electrode, Laboratory Portable Turbidity Meter. We specialize in the production and sale of PH Buffer Solution, offering a wide range of options to suit your needs. Our company has a track record of delivering on our promises and meeting our customers' expectations. We are a reliable source for high-quality and innovative products. We offer exceptional after-sales support to ensure our customers' continued satisfaction with our products and services. One of the great advantages of our company is that when a plan or policy is set, we move forward without hesitation towards it. And that grit has helped us get to where we are today. We are committed to providing personalized service to meet the individual needs of our clients.
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![PH Buffer Solution]()
PH Buffer SolutionConfiguration: pH 4.00, pH 6.86, pH 9.18 (1 bottle each)
Volume: 100mL per bottle
Application: pH meter calibration, electrode verification, pH traceability
Compatibility:... -
![Electric Overhead Stirrer]()
Electric Overhead StirrerModel: QW-JB-250S
Output Power: 250 W
Power Supply: 220V 50 Hz
Speed Regulation Range: 10-500 rpm
Stirring Rod: ￠8×340mm (Stainless steel stirring paddle) -
![Digital Thermostat Controlled Water Bath]()
Digital Thermostat Controlled Water BathModel: QW-FAD-WB, QW-FAD-WBT
Magnetic Stirring: None
Thermal Protection Function: Have
Temperature Control Range: Room temperature +8–90°C -
![Laboratory Rocking Shaker Machine]()
Laboratory Rocking Shaker MachineModel: QW-YC-24, QW-YC-29, QW-YC-24ST, QW-YC-29ST
Operation Mode: Up and Down Swing
Speed Range: 50-210 rpm
Input Voltage: AC100 - 240V (50/60Hz) -
![High Power Magnetic Stirrer]()
High Power Magnetic StirrerModel: QW-DC-24ST
Product Features: Benchtop
Speed Range: 200 - 1300 rpm
Timing Range: 0 - 9999 min -
![Manual Lifting Stirrer]()
Manual Lifting StirrerModel: QW-JB-250
Output Power: 250W
Power Supply: 220V 50Hz
Speed Regulation Range: 10-500rpm -
![Cross Base Overhead Stirrer]()
Cross Base Overhead StirrerModel: QW-JB-250D
Output Power: 250W
Power Supply: 220V 50Hz
Speed Regulation Range: 10-500rpm -
![Digital Heating Magnetic Stirrer]()
Digital Heating Magnetic StirrerModel: SCL-RC+
Timing Function: No
Speed Range: 0–1600 rpm
Stirring Volume: 10–1000 ml -
![Portable Ultraviolet Meter]()
Portable Ultraviolet MeterModel: WFH-204B
Ultraviolet Wavelengt: 254nm, 365nm
Ultraviolet Filter Plate Size: 50×150mm
Power Supply: AC 220V ± 10% 50Hz -
![MultiFunctional Horizontal Shaker]()
MultiFunctional Horizontal ShakerModel: QW-YC-25W
Operation Mode: Horizontal circular
Timing Range: No
Speed Range: 50 - 210 rpm -
![Infrared Inoculation Loop Sterilizer]()
Infrared Inoculation Loop SterilizerModel: QW-MJ-15
Central Zone High Temperature: 850 ± 25℃
Disinfection Product Outer Diameter: Ф15mm
Heating Zone Total Length: 165mm -
![Powder forming Die]()
Powder forming DieModel: HY-1
Compatible Equipment: Benchtop/portable whiteness meters, color difference analyzers
Suitable Samples: Flour, starch, talc, calcium carbonate, ceramic powder, and other...
William Webster
Thank you so much for customizing these products for me, have a nice day!
Brian Hayden
The company has been great at meeting all our product needs in a timely manner without losing patience!
Sandra Nelson
Although this is your first time, you have first-class equipment and advanced ideas.
Stanley Prill
Your sales representatives have strong analytical skills and the ability to work under high pressure and time constraints.
Cynthia Parsons
The emerging products and startups are changing the market, but this manufacturer is also changing itself, and we have seen their success through this collaboration.
Ann Deal
The quality of the instruments is excellent and they are very useful.
We will always adhere to the people-oriented approach in our future development and provide first-class Portable Multi-Parameter Sodium Ion Concentration Meter, Handheld Rechargeable Whiteness Tester and services to the society. Hangzhou Qiwei Instrument Co., Ltd. is one of the most reliable manufacturers and suppliers of ph buffer solution in China, featured by quality products and good service. Please rest assured to buy bulk durable ph buffer solution in stock here from our factory. We also accept customized orders.