Bluelab pH Probe KCl Storage Solution - 250ml

Keep pH Probes Hydrated Between Uses

A pH probe's glass sensing junction depends on staying hydrated to respond quickly and accurately, and letting it dry out between uses is one of the more common ways probe performance degrades over time. Bluelab pH Probe KCl Storage Solution is made specifically to store and rehydrate Bluelab pH probes and pens, keeping that junction in working condition between measurement sessions.

Add solution to the storage cap of a pH pen or probe after each use for daily storage, and hydrate the probe fully in KCl solution on a monthly basis for longer-term care.

Key Features & Benefits

• Formulated for Bluelab pH probes and pens — matches Bluelab probe construction and materials.
• Improves probe response time — keeps the sensing junction hydrated for fast, accurate readings at each use.
• Extends probe lifespan — proper storage reduces glass junction degradation over the probe's service life.
• 250ml bottle — provides multiple refills for daily cap storage and monthly hydration soaks.

Who Should Use This

Anyone using a Bluelab pH probe or pen who wants to protect that investment and keep readings responsive over the full service life of the probe is the direct fit for this solution.

About Bluelab Corporation

Bluelab, a New Zealand company with more than three decades in pH measurement, formulates this storage solution specifically to complement its own probe and pen construction.

Frequently Asked Questions

How do I use this KCl storage solution?

Add it to the storage cap of a pH pen or probe after each use for daily storage, and give the probe a full monthly hydration soak in the solution for longer-term care. This routine keeps the sensing junction properly hydrated.

Is this the same as a calibration solution?

No, this solution is for storing and hydrating probes, not for calibration. Use Bluelab pH 4.0 and 7.0 calibration solutions for calibrating a pH meter.

Why does proper storage extend probe life?

pH probes contain a hydrated glass junction that degrades once it dries out. Storing the probe in KCl solution keeps that junction hydrated, which maintains responsiveness and pushes back the point at which replacement becomes necessary.

Can this solution be used with non-Bluelab probes?

This solution is made specifically for Bluelab probes and pens. It may work with other KCl-compatible pH probes, though Bluelab recommends it for use with its own devices.