Probe Care Kit – pH by Bluelab — Clean, Calibrate & Hydrate pH Probes
BL-KIT-CARE-PH
Pairs well with
The Bluelab Probe Care Kit – pH is the complete maintenance routine for any Bluelab pH pen or probe in one box: cleaner and brush to strip the built-up residue that makes readings drift, pH 7.0 and 4.0 sachets for the 2-point calibration that brings accuracy back, and KCl storage solution to keep the glass tip alive between uses. The instrument is only as accurate as the probe is clean — this kit is how you keep it that way.
What's in the Kit
2 x single-use pH 7.0, 2 x single-use pH 4.0
2 x single-use KCl storage solution sachets
For stripping residue off the glass tip
Soft toothbrush for heavy contamination around the glassware
For cleaning, calibration and hydration soaks
Bluelab's step-by-step routine
- Sachets are single-use. Tip them into a clean cup, calibrate, and discard — never pour used solution back or dip the probe straight into the sachet you'll reuse. Contaminated calibration solution means a false calibration.
- Rinse the probe tip in clean water between the 7.0 and 4.0 solutions so you don't drag one buffer into the other.
- Never rinse, soak or store a pH probe in RO, distilled or deionised water — pure water changes the reference chemistry and kills the probe. Tap water for rinsing, KCl for storage, always.
The Monthly Routine
Pairs Well With
Bottles for everyday storage once the kit's sachets are gone — the habit that keeps probes alive.
Calibration SolutionsRestock pH 7.0 and 4.0 sachets and buffers for the monthly recalibration.
Bluelab pH Pens & ProbesThe gear this kit maintains — pH PenPlus, pH Pen and the 2m BNC pH Probe.
All BluelabMeters, monitors, controllers and care gear from the full range.
Frequently Asked Questions
Does this kit work with the pH PenPlus, pH Pen and pH Probe?
Yes. The clean, calibrate and store process is the same across all Bluelab pH pens and probes — this kit covers any of them. Always follow your specific product's manual where the storage details differ.
Does it include EC/conductivity solutions?
No. This is the pH-only kit — no 2.77 EC standard and no conductivity probe cleaner. If you run an EC pen as well, Bluelab makes a combined pH and Conductivity care kit that covers both.
How often should I use it?
Monthly is the standard cadence — clean, then recalibrate. Also run the routine whenever readings drift or look wrong, after changing batteries, and whenever your meter's calibration reminder appears.
Are the sachets reusable?
No. All sachets are single-use — pour into a clean cup, use, and discard. Reusing calibration solution contaminates it, and a probe calibrated in contaminated solution reads wrong from that point on.
Will cleaning fix a probe that reads the same in every solution?
No. A probe showing the same reading in every buffer has broken glassware and needs replacing — no amount of cleaning recovers it. Cleaning and recalibration fix drift and slow response, not physical damage.
Your pH Probe Is Only as Good as Its Care
The full Bluelab maintenance routine in one kit. Free shipping over $499*.