Combo Meter

R6 485
R6 600




This convenient and portable product provides pH, conductivity and temperature in one simple meter. 

With an easy to read screen and push button operation, choose your preferred parameter to display. The product is portable with no external power supply required and can be used anytime, anywhere to help manage your plant’s daily nutrient requirements.

Team this product with the Bluelab solutions and the convenient Bluelab Carry Case to ensure longevity and accurate pH readings.


  • Measures pH, conductivity/nutrient (EC, CF, ppm 500 and ppm 700) and temperature (°C, °F)
  • Lightweight and portable
  • Large easy to read display
  • 2m length cables
  • Simple push-button pH calibration
  • Successful pH calibration indicator
  • No calibration required for conductivity and temperature
  • Replaceable double junction pH probe included
  • Over range and under range indicators
  • Low battery indicator
  • 2 x AAA alkaline batteries included
  • Auto-off function
  • 5 Year Warranty on device and 6 month warranty on probe, from purchase at Green Houston
  • Made in New Zealand

  • Replace only the pH probe, not the whole meter!


    Importance of accurate pH readings

    Think of nutrients like a lock and pH is the key. A key factor that affects nutrient uptake for plants is whether your solution is acidic or alkaline which is measured with pH.

    Make use of the Probe Care Kit to ensure that your BlueLab tools are well-maintained and reading accurately.


    Please Note:

    Electrodes need to be calibrated on a regular basis due to the fact that as an electrode ages, its glass changes resistance. This resistance change alters the electrode potential, and therefor, the accuracy of the reading

    The following premium calibration solutions are advised for probe calibration; pH 4.0 Calibration Solution and pH 7.0 Calibration Solution.

    The following solution is advised for long term probe maintenance: Probe KCL Storage Solution.

    Green Houston is a certified Bluelab dealership - Please contact for all Bluelab Instruments and variants. You can also visit our store for inhouse Bluelab machine diagnostic and maintenance.