Bluelab pH & EC Meter Cleaning and Calibration Combined Kit
Best for: owners of Bluelab pH and EC meters, such as the Combo or Maestro, who want one kit covering both cleaning and calibration.
Our thoughts
This is the sensible bundle if you're running a meter that measures both pH and EC - buying the separate pH kit and EC kit individually costs more and means keeping track of two sets of bottles. One box, everything you need.
Being able to test the pH and EC of your feed water accurately is essential to keeping plants properly fed - get either wrong and you risk under or overfeeding, or a pH swing that locks out nutrients. Bluelab pH and EC meters are built to be tough and reliable for years, but they still need regular cleaning and calibration to stay accurate. This combined kit contains everything needed to clean and calibrate both the pH and conductivity sides of your Bluelab meter in one go.
How it compares
It's a maintenance bundle rather than a testing device, so the comparison is against buying separate single-parameter kits or skipping maintenance altogether.
- Versus buying Bluelab's pH-only and EC-only cleaning kits separately, this combined kit is more cost-effective if your meter measures both parameters.
- Versus not maintaining your probes at all, a build-up of scale or residue on either sensor will quietly skew readings without any obvious warning sign.
- Versus generic own-brand calibration solutions, using Bluelab's own solutions keeps your calibration consistent with the specification your meter was designed against.
For the price, it's cheap insurance against a meter quietly drifting out of accuracy over time.
Usage guidance
A periodic clean and calibration, rather than a one-off job, keeps combo-style meters accurate long-term.
Cleaning
Use the cleaning solution included to remove mineral scale and residue from both the pH and conductivity probes periodically, particularly if readings start to look inconsistent.
pH calibration
Calibrate against pH 4.0 and 7.0 buffer solution for a standard two-point calibration.
EC calibration
Calibrate conductivity using the included EC standard solution for a single-point calibration.
Frequency
Build this into your routine every few weeks to a couple of months depending on how heavily you use your meter and how hard your nutrient solution is on the probes.
Technical specifications
- Compatible with: Bluelab pH and EC meters, including Combo and Maestro models
- Contents: pH cleaning and calibration solution, EC cleaning and calibration solution
- Calibration points: 2-point pH (4.0/7.0), 1-point EC
- Recommended use: periodic maintenance, every few weeks to months
Who this is for
- Owners of combo-style Bluelab meters measuring both pH and EC
- Growers who've noticed readings starting to drift or look inconsistent
- Anyone stocking up on consumables alongside a new meter purchase
- Growers who want one kit rather than juggling separate pH and EC maintenance products
Best suited to existing combo meter owners rather than anyone with only a single-parameter pen.
Our take
Keeping your meter clean and calibrated is the unglamorous part of accurate feeding, but it's the part that actually matters. This kit makes it a five-minute job instead of an excuse to put it off.
Worth picking up alongside your Combo or Maestro meter, or as soon as your readings start to look off. Does exactly what it should, day in, day out.
