Complete pH Meter Calibration & Maintenance Kit - 4 x 230mL Bottles
The Milwaukee MA9004/MA9007/MA9015/MA9016 is a comprehensive pH meter calibration and maintenance kit designed for accurate pH meter calibration and proper electrode care. This professional-grade bundle includes pH 4.01 and pH 7.01 NIST-traceable buffer solutions, electrode storage solution, and electrode cleaning solution—everything you need to maintain optimal pH meter accuracy in aquariums, hydroponics, pools, laboratories, and water quality testing.
Key Features:
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Complete 4-Bottle Kit: Includes pH 4.01 buffer, pH 7.01 buffer, storage solution, and cleaning solution—all essential products in one convenient bundle
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Lab-Grade Accuracy: pH buffers certified to ±0.01 pH accuracy and NIST-traceable for precise meter calibration
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Premium Quality: All solutions produced with premium lab-grade chemicals for reliable, repeatable results
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230mL Bottles: Each bottle contains 230mL (7.8 fl oz) for multiple calibrations and extended use
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Light-Blocking Bottles: Sealed against light with airtight, tamper-proof caps to prevent UV degradation
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Lot Numbers & Expiration Dates: Each bottle marked with traceability information for quality assurance
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Universal Compatibility: Works with all Milwaukee pH meters and other brands requiring standard pH buffers
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Cost-Effective Bundle: Save money by purchasing the complete kit versus individual bottles
What's Included:
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MA9004: pH 4.01 Calibration Buffer Solution (230mL) - Acidic calibration point
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MA9007: pH 7.01 Calibration Buffer Solution (230mL) - Neutral calibration point
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MA9015: Electrode Cleaning Solution (230mL) - Removes deposits and contaminants from pH probes
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MA9016: Electrode Storage Solution (230mL) - Keeps pH electrodes hydrated and ready for accurate measurements
Technical Specifications:
- Product Code: MA9004/MA9007/MA9015/MA9016 Kit
- pH 4.01 Buffer: ±0.01 pH accuracy @ 25°C (MA9004)
- pH 7.01 Buffer: ±0.01 pH accuracy @ 25°C (MA9007)
- Bottle Size: 230mL (7.8 fl oz) each
- Total Volume: 920mL (4 bottles)
- Traceability: NIST traceable buffers
- Grade: Laboratory grade
- Packaging: Light-blocking bottles with tamper-proof caps
- Weight: 2 lbs (complete kit)
- Country of Origin: Romania
Applications:
Essential for aquarium pH monitoring (freshwater, saltwater, reef tanks), hydroponics nutrient solution testing, swimming pool and spa water chemistry, drinking water quality verification, environmental water testing, laboratory analysis, food and beverage production, wastewater treatment, and any application using pH meters. This complete kit provides everything needed for accurate calibration and proper electrode maintenance.
Why This Complete Kit?
Proper pH meter maintenance requires more than just calibration buffers. This comprehensive kit includes all four essential solutions: pH 4.01 and pH 7.01 for two-point calibration (the gold standard for accuracy), cleaning solution to remove deposits that affect accuracy, and storage solution to keep electrodes hydrated between uses. Purchasing the complete kit saves money versus buying individual bottles and ensures you have everything needed for optimal pH meter performance.
How to Use:
Calibration: Use MA9004 (pH 4.01) and MA9007 (pH 7.01) for two-point calibration following your meter's instructions. Two-point calibration ensures accuracy across the full pH range.
Cleaning: Use MA9015 cleaning solution to remove protein deposits, oils, and contaminants from the pH electrode. Soak probe for 15-20 minutes, then rinse with distilled water.
Storage: Store pH electrode in MA9016 storage solution when not in use. Never store in distilled water—this damages the electrode and reduces accuracy.
Calibration Best Practices:
For optimal accuracy, calibrate your pH meter at two points: pH 7.01 (neutral) and pH 4.01 (acidic) or pH 10.01 (alkaline) depending on your typical sample range. Calibrate weekly for frequent use, monthly for moderate use, or before critical measurements. Always calibrate after cleaning the probe or when readings seem inaccurate.
Storage & Handling:
Store bottles in a cool, dry place away from direct sunlight and extreme temperatures. Keep bottles tightly sealed when not in use. Do not use solutions past expiration date. For best accuracy, allow solutions to reach room temperature (25°C/77°F) before use.
Note: For three-point calibration, add Milwaukee MA9010 pH 10.01 buffer solution (sold separately). Do not contaminate solutions by dipping used probes directly into bottles—always pour into a separate container.
