Product Description
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
MA9007 — pH 7.01 Calibration Buffer Solution (230mL) | Neutral calibration point | ±0.01 pH @ 25°C | NIST-traceable
MA9061 — 1413 µS/cm Conductivity (EC) Calibration Solution (230mL) | Standard for EC/TDS calibration | NIST-traceable
MA9015 — Electrode Storage Solution (230mL) | Keeps the SE600 combo electrode hydrated and conditioned between uses
MA9016 — Electrode Cleaning Solution (230mL) | Removes mineral deposits, organic matter, and fertilizer residue from the combo electrode
Key Features
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
±0.01 pH NIST-Traceable Accuracy — Certified pH 7.01 buffer eliminates mixing errors and ensures traceable, reproducible calibration
1413 µS/cm NIST-Traceable EC Standard — Ideal for hydroponics, aquariums, aquaponics, and general water quality EC/TDS calibration
SE600 Combo Electrode Specific — Formulated for the integrated pH/EC/TDS probe used with MW801 PRO and MW802 PRO meters
230mL Large-Format Bottles — 7.8 fl oz each (920mL total) for multiple calibrations and extended use
Light-Blocking, Tamper-Proof Bottles — Sealed against UV degradation and contamination to preserve solution integrity
Lot Numbers & Expiration Dates — Full traceability on every bottle for QC documentation and compliance
Cost-Effective Bundle — Significant savings versus purchasing four individual bottles separately
Technical Specifications
SKU: COMBO-START
pH 7.01 Buffer (MA9007): ±0.01 pH @ 25°C | NIST-traceable
EC Calibration (MA9061): 1413 µS/cm @ 25°C | NIST-traceable
Bottle Size: 230mL (7.8 fl oz) each
Total Volume: 920mL (4 bottles)
Packaging: Light-blocking bottles with airtight, tamper-proof caps
Traceability: Lot number & expiration date on each bottle
Grade: Laboratory grade
Kit Weight: 3 lbs
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.
