Hanna Electrode Storage Solution - HI 70300 - For pH Electrode Preservation

Keep Your pH Electrode Ready for Fast, Accurate Readings

Hanna HI 70300 Electrode Storage Solution keeps the glass bulb and junction of your pH electrode hydrated between uses. Storing an electrode dry lets the glass membrane dehydrate, which slows response time and hurts measurement accuracy. A few drops of HI 70300 in the protective cap keeps the electrode in good condition and supports a fast, reliable response from the first measurement.

Key Features & Benefits

• Helps Prevent Junction Clogging: Proper storage in HI 70300 reduces the risk of the junction drying out and clogging, which can cause sluggish or inaccurate readings.
• Maintains Fast Response Time: A hydrated glass bulb and junction give quicker, more stable pH readings at the start of each session.
• Supports Longer Electrode Life: Correct storage reduces glass membrane degradation and helps extend the working life of your pH electrode.
• Simple to Use: Add a few drops to the electrode's protective cap before capping -- no mixing or preparation required.
• Hanna pH 7 Buffer as an Alternative: HI 70300 or Hanna pH 7 buffer solution can both be used for short-term electrode storage.

Who Should Use This

Anyone using Hanna pH electrodes and probes who wants to maintain measurement accuracy and extend electrode service life as part of a routine care schedule.

Compatibility

Designed for use with Hanna pH glass electrodes and probes, compatible with the protective storage caps supplied with Hanna electrodes.

Frequently Asked Questions

How do I use the electrode storage solution?

Add a few drops of HI 70300 to the protective cap of your pH electrode before capping for storage. This keeps the glass bulb and junction moist until the next use.

Can I use pH 7 buffer solution instead?

Yes -- Hanna recommends storing electrodes with either HI 70300 storage solution or pH 7 buffer solution in the protective cap. Either option keeps the glass bulb hydrated between measurement sessions.

What happens if I store my electrode dry?

Dry storage dehydrates the glass membrane and junction, which slows response time and reduces reading accuracy. Over repeated dry storage, this also speeds up electrode aging and shortens its usable life.

When should I change the solution in the storage cap?

Replace the solution when it becomes discolored or depleted -- typically every few weeks under regular use. Check it whenever you notice slower-than-usual meter response.