Bluelab Combo Meter Plus



The Bluelab pH Pen measures the temperature of the solution, as root health is vital to the success of a crop. Plants get their nutrient from minerals, but they can only get all the right minerals they need if certain conditions are right. Think of nutrients like a lock. pH is the key. A key factor that affects food uptake is whether your solution is acid or alkaline. We measure this in pH.

Temperature affects the growth rate and structure of a plant so a solution temperature of 18 - 22˚C or 65 - 72˚F is recommended.

The hand held pH pen provides a compact quick and handy way to manage the success of your crop to ensure maximum uptake of nutrients.

Now isn't that Handy!



  • Measures pH and temperature
  • Selectable units for temperature
  • Backlit LCD display
  • Double junction probe (not replaceable)
  • Successful pH calibration indicator
  • Hold reading function
  • Low battery indicator
  • Fully waterproof
  • Auto off function
  • Automatic temperature compensation



Units pH, °C, °F
Measurement Range 0.0 - 14.0 p H   0 - 50 °C/ 32 - 122 °F
Resolution 0.1 p H   1  °C / 1 °F
Accuracy at 25 °C / 77 °F ± 0.1 pH
Automatic Temperature Compensation (ATC) Yes
Operating Environment 0 - 50 °C / 32 - 122 °F
Calibration Two Points pH 7.0 and pH 4.0 or pH 10.0 
Power Source Required 1 x AAA alkaline battery
Other Functions Backlit LCD Display, Successful Calibration Indicator, Hold Function, Low Battery Indicator, Auto Off
Bluelab Combo Meter Plus
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South Africa

+27 64 493 1577

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