Bluelab Probe Care pH & Conductivity

Bluelab Probe Care Kit — Complete pH & Conductivity Probe Cleaning, Hydration & Calibration Kit

The Bluelab® Probe Care pH & Conductivity Kit is the all-in-one maintenance kit for growers who run both pH and EC (conductivity) probes. It contains everything needed to clean, hydrate, and calibrate pH probes, and to clean and verify conductivity probes — the two most critical probe maintenance routines for accurate hydroponic nutrient management. Your instruments are only as accurate as your probes are clean, and consistent probe care is the single most effective way to maintain measurement accuracy and extend probe service life.

The kit includes single-use 20 ml solution sachets for both pH calibration (pH 7.0 and pH 4.0) and KCl storage, plus a 2.77 EC conductivity reference solution sachet for post-cleaning EC probe verification. Dedicated cleaning tools for both probe types — pH probe cleaner, conductivity probe cleaner, toothbrush, and chamois — along with three plastic cups for convenient solution dipping, make this a complete, ready-to-use probe care solution.

Kit Contents

• Instructions for pH and conductivity probe care
• 2 × pH 7.0 calibration solution sachets (20 ml each)
• 2 × pH 4.0 calibration solution sachets (20 ml each)
• 2 × KCl storage solution sachets (20 ml each)
• 2 × 2.77 EC conductivity reference solution sachets (20 ml each)
• 3 × plastic cups
• pH probe cleaner
• Conductivity probe cleaner
• Toothbrush
• Chamois (probe cleaning instrument)

Frequently Asked Questions

What is the difference between the Bluelab Probe Care pH & Conductivity Kit and the pH-only Probe Care Kit?

The Bluelab Probe Care pH & Conductivity Kit covers maintenance for both probe types in a single kit. In addition to the pH probe cleaning, hydration (KCl), and calibration (pH 7.0 and pH 4.0) consumables included in the pH-only kit, this kit also includes conductivity probe cleaner and 2.77 EC reference solution sachets for cleaning and verifying your EC probe. It is the recommended kit for any grower using a Bluelab meter or monitor that measures both pH and EC, such as the Combo Meter, Combo Meter Plus, Guardian Monitor, or Pro Controller.

How do I use the Bluelab Probe Care Kit for pH and conductivity probes?

For pH probes: use the pH probe cleaner and chamois to gently clean the probe surface, rinse with clean water, then calibrate using the pH 7.0 and pH 4.0 sachets. Store the probe in KCl solution after use. For conductivity probes: use the conductivity probe cleaner and toothbrush to clean the probe electrodes, rinse with clean water, then dip the probe into the 2.77 EC reference solution using a plastic cup and verify the reading on your meter. Full instructions are included in the kit.

How often should I use the Bluelab Probe Care Kit?

Bluelab recommends cleaning and calibrating pH probes at least once a week in active growing environments, and cleaning and verifying EC probes after every cleaning or any time you suspect an inaccurate reading. In high-intensity commercial operations with hard water or high nutrient concentrations, more frequent probe care may be needed. Consistent probe maintenance prevents measurement drift and protects your crop from the consequences of inaccurate pH or EC readings.

Is the Bluelab Probe Care pH & Conductivity Kit compatible with all Bluelab instruments?

Yes. The kit is compatible with all Bluelab pH and EC instruments, including the Bluelab Combo Meter, Combo Meter Plus, pH Pen, Conductivity Pen, Guardian Monitor, Guardian Connect, Pro Controller, pH Controller Connect, Connect pH Controller, and all associated replacement probes. It is the recommended all-in-one maintenance kit for any Bluelab instrument that measures both pH and EC.

Where can I buy the Bluelab Probe Care pH & Conductivity Kit?

The Bluelab Probe Care pH & Conductivity Kit is available through Seres Ag, a professional hydroponic and CEA equipment supplier serving growers across the United States. Purchase directly at seresag.com. Seres Ag offers competitive pricing on Bluelab maintenance kits and consumables, expert support, and US-wide shipping. For wholesale or bulk orders, contact the Seres Ag team through the website.