Combo Meter

The Bluelab Combo Meter is a portable all-in-one nutrient, pH, and temperature meter which can be used any time and anywhere.

To take a reading - the two probes just need to be dropped into the nutrient solution, press the required mode (pH, EC, temp), wait a minute or two for the probes to adjust to the same temperature as the nutrient solution. View the readout. It's that simple.

Remember to rinse between testing different solutions, and rinse after use. The probes should be cleaned regularly to maintain accuracy, and ensure long life of the combo meter.


  • Selectable values for conductivity and temperature
  • pH range 0 - 14 pH
  • simple pH calibration
  • auto turn off
  • supplied with calibration solution
  • low battery indicator
  • batteries included
  • light weight & portable
  • 5 year warranty (6 months on pH probe)
Bluelab Combo Meter

Combo Meter

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Bluelab Combo Meter

EC Probe Cleaning Kit

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Bluelab Cleaning Kit

Probe cleaning is one of the most important parts of owning and operating any Bluelab meter. If the probe is contaminated or dirty, it affects the accuracy of the reading displayed.

The probe surface is where the instrument takes the reading of the solution. The information is sent back from the probe to the electronic brain of the instrument.

A calculation is then done in the instruments brain or micro computer and a reading is then displayed. If the information sent back from the probe is inaccurate due to probe surface contamination then the reading will be inaccurate.

Cleaning the probes is a very easy task and prolongs the life of the probes.

The Bluelab EC Cleaning Kit contains;

  • Instructions
  • 2 x 20ml single use Conductivity standard solution sachets
  • Plastic Cup
  • Probe cleaner
  • Cleaning Tool

For cleaning the following;

  • Bluelab EC Truncheon
  • Bluelab Combo Meter
  • Bluelab Guardian Monitor

pH Probe

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Bluelab pH Probe Kit
Replacement probe for Guardian Monitor and Combo Meter
  • Easy to clean
  • Fully waterproof to 10 metres
  • Gel filled (non-refillable)
  • Maintenance free