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pH Buffer Solution 4,6.86,9.18 pH Calibration Solution for pH Meters - color: Purple

pH Buffer Solution 4,6.86,9.18 pH Calibration Solution for pH Meters - color: Purple

$21.56 USD
$21.56 USD
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About this item

  • ✅ Lab-Grade Precision Calibration: The GIDIGI pH Buffer Solution Kit includes three commonly used standard values: 4.01, 6.86, and 9.18, which are the most frequently used pH calibration points for virtually all pH meters and testing instruments. pH solution deviation is ±0.02 pH (77°F). For pH buffer solutions 4, 7, and 10, please search: B0F2SZ8JKR.
  • ✅ Ready to Use and More Accurate: Compared to insufficiently dissolved and error-prone buffer powders, GIDIGI pH standard solutions require no complicated preparation. The buffer solutions are pre-mixed and ready to use, saving you valuable time in the lab or daily testing, while being more accurate than manually prepared solutions. Ideal for scientific research, pool maintenance, aquariums, and more.
  • ✅ Compatible with All pH Testers: This pH calibration kit is widely compatible with a wide range of pH testing equipment and applications, ensuring universal usability. pH calibration solution is used to calibrate laboratory pH meters, aquarium pH meters, hydroponic pH testers, and pH calibration equipment for drinking water, swimming pool water, wastewater, and beverage testing, as well as for pH calibration in food processing and quality control.
  • ✅ Includes probe cleaning solution: In addition to 3 bottles of pH calibration solution, 1 bottle of pH probe cleaning solution is also included. GIDIGI's cleaning solution, specially designed for probes, gently and effectively dissolves contaminants, removes dirt without corroding the probe, and ensures measurement accuracy.
  • ✅ Stable pH buffer solution: Even with long-term storage, the pH values ​​remain accurate at 4.00, 6.86, and 9.18, eliminating the need for frequent repurchases. Stable storage for up to 24 months in a cool, dry, sealed place meets the needs of both professional and home use. If you encounter any quality issues or have any questions about use, our professional customer service team will respond and provide solutions within 24 hours. Choose our pH calibration kit for accurate, convenient, and reliable pH testing every time!

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Reviews

  • ⭐⭐⭐⭐⭐

    Hannah Miller — Seattle, Washington
    I ordered several science activity supplies for projects at home. The product descriptions made it easier to compare the available options, and everything fit neatly into our learning space. Stemora made finding tools for hands-on activities feel simple and organized.

  • ⭐⭐⭐⭐⭐

    Daniel Foster — Austin, Texas
    I found a useful selection of electronics and robotics accessories for a beginner project. It was convenient to browse related components in clearly organized categories. I would consider shopping here again when planning another maker activity.

  • ⭐⭐⭐⭐⭐

    Lauren Bennett — Denver, Colorado
    The measurement and observation tools I selected worked well for the classroom activities I had planned. I especially appreciated being able to review the product details before ordering and choose items that matched the lesson requirements.

  • ⭐⭐⭐⭐⭐

    Jason Parker — Portland, Oregon
    I purchased a few storage items and small tools for organizing my maker workspace. The products helped keep components, wires, and project materials easier to sort and access. The overall shopping experience was straightforward and convenient.

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FAQ

What types of products does Stemora offer?


Stemora offers supplies for science experiments, microscopy, biology learning, measurement, laboratory organization, electronics, robotics, coding education, 3D printing, maker projects, and classroom activities. Available products and specifications may change over time.

Are Stemora products suitable for children?


Recommended ages vary by product. Please review the product description, manufacturer guidance, included warnings, and required skill level before purchasing. Products containing small parts, tools, electrical components, glass, or chemicals may not be suitable for young children.

Is adult supervision required?


Adult supervision is recommended for children and students, especially when using electrical components, sharp tools, heated equipment, glassware, small parts, or experiment materials. Customers are responsible for following all product instructions and safety precautions.

Can these products be used at home and in classrooms?


Many products may be suitable for classrooms, home learning, science projects, maker spaces, and hobby activities. Suitability depends on the specific product, learning environment, user experience, and intended activity.

How can I check what is included with a product?


Please review the product title, description, specifications, images, package quantity, and included-components section before ordering. Items shown for demonstration or scale in product images may not always be included.

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When will I receive tracking information?


Tracking information is generally provided within 3–5 business days after an order is confirmed. In some cases, processing may take approximately 7–8 business days. Delivery may require an additional 4–5 business days after tracking becomes available, depending on the carrier and destination.

Why did my order arrive in separate packages?


Products in the same order may be shipped from different fulfillment locations. As a result, items may arrive separately and have different tracking numbers. You will not be charged additional shipping fees solely because an order is divided into multiple packages.

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