Milwaukee COMBO-START Solution Kit – 4 Essential Solutions for MW801 & MW802 PRO Combo Meters
Keep your combo meter calibrated and your SE600 electrode performing at its best with the Milwaukee COMBO-START Kit — a complete 4-bottle solution set engineered specifically for the SE600 Combo pH/EC/TDS electrode used with the MW801 PRO and MW802 PRO 3-in-1 Combo Meters. Includes a NIST-traceable pH 7.01 buffer, 1413 µS/cm conductivity calibration standard, electrode storage solution, and electrode cleaning solution — all in generous 230mL light-blocking bottles.
Whether you’re managing hydroponics nutrient solutions, aquarium water quality, aquaponics systems, or drinking water testing, the COMBO-START kit provides everything needed for accurate multi-parameter calibration and long-term combo electrode care in a single, cost-effective purchase.
What's Included
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MA9007 — pH 7.01 Calibration Buffer Solution (230mL) | Neutral calibration point | ±0.01 pH @ 25°C | NIST-traceable
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MA9061 — 1413 µS/cm Conductivity (EC) Calibration Solution (230mL) | Standard for EC/TDS calibration | NIST-traceable
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MA9015 — Electrode Storage Solution (230mL) | Keeps the SE600 combo electrode hydrated and conditioned between uses
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MA9016 — Electrode Cleaning Solution (230mL) | Removes mineral deposits, organic matter, and fertilizer residue from the combo electrode
Key Features
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Complete 4-Solution Combo Meter System — pH calibration, EC/TDS calibration, cleaning, and storage in one kit; nothing else needed for standard combo meter maintenance
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±0.01 pH NIST-Traceable Accuracy — Certified pH 7.01 buffer eliminates mixing errors and ensures traceable, reproducible calibration
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1413 µS/cm NIST-Traceable EC Standard — Ideal for hydroponics, aquariums, aquaponics, and general water quality EC/TDS calibration
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SE600 Combo Electrode Specific — Formulated for the integrated pH/EC/TDS probe used with MW801 PRO and MW802 PRO meters
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230mL Large-Format Bottles — 7.8 fl oz each (920mL total) for multiple calibrations and extended use
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Light-Blocking, Tamper-Proof Bottles — Sealed against UV degradation and contamination to preserve solution integrity
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Lot Numbers & Expiration Dates — Full traceability on every bottle for QC documentation and compliance
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Cost-Effective Bundle — Significant savings versus purchasing four individual bottles separately
Technical Specifications
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SKU: COMBO-START
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pH 7.01 Buffer (MA9007): ±0.01 pH @ 25°C | NIST-traceable
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EC Calibration (MA9061): 1413 µS/cm @ 25°C | NIST-traceable
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Bottle Size: 230mL (7.8 fl oz) each
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Total Volume: 920mL (4 bottles)
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Packaging: Light-blocking bottles with airtight, tamper-proof caps
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Traceability: Lot number & expiration date on each bottle
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Grade: Laboratory grade
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Kit Weight: 3 lbs
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Origin: USA
Compatible Equipment
- Milwaukee MW801 PRO 3-in-1 pH/EC/TDS Combo Meter
- Milwaukee MW802 PRO 3-in-1 pH/EC/TDS Combo Meter
- Milwaukee SE600 Combo pH/EC/TDS Electrode
- Any pH meter requiring pH 7.01 buffer or 1413 µS/cm EC calibration standard
How to Use
pH Calibration: Pour a small amount of MA9007 (pH 7.01) into a clean container, calibrate your meter to 7.01, then rinse the probe with distilled water. For two-point pH calibration, add Milwaukee MA9004 pH 4.01 buffer (sold separately). Discard used solution — never return to the bottle.
EC/TDS Calibration: Pour a small amount of MA9061 (1413 µS/cm) into a clean container and calibrate the EC/TDS portion of your meter. This standard is ideal for hydroponics, aquariums, and general water quality applications.
Cleaning: Soak the SE600 combo electrode in MA9016 cleaning solution for 15–20 minutes to dissolve mineral deposits, fertilizer residue, and organic matter. Rinse thoroughly with distilled water before calibrating or measuring.
Storage: Store the combo electrode submerged in MA9015 storage solution when not in use. Never store in distilled, DI, or RO water — this leaches ions from the pH glass membrane and permanently reduces electrode sensitivity.
Calibration Best Practices
- Calibrate both pH and EC/TDS parameters regularly — weekly for frequent use, monthly for moderate use, always before critical measurements
- Always calibrate after cleaning the probe or after extended storage
- Allow solutions to reach room temperature (25°C / 77°F) before use for best accuracy
- Pour solutions into a separate container — never dip used probes directly into the bottle
- For two-point pH calibration, add MA9004 pH 4.01 buffer (sold separately)
Applications
- Hydroponics nutrient solution pH and EC monitoring
- Aquarium & reef tank water quality management
- Aquaponics system multi-parameter testing
- Drinking water & tap water quality verification
- Swimming pool & spa water chemistry
- Environmental & wastewater testing
- Laboratory & educational use
Why Milwaukee Instruments?
Milwaukee Instruments is trusted worldwide by hydroponics growers, aquaculture professionals, water treatment specialists, and laboratory scientists. Every Milwaukee solution is formulated with premium lab-grade chemicals, NIST-traceable where applicable, and packaged to preserve integrity from production to point of use — delivering the calibration confidence your MW801 or MW802 PRO demands.
