pH Meter 033
pH Meter 033

pH Meter 033

Product Code: 3523015

A digital hand-held pH meter is ideal for any water testing requirements. Light, accurate and easy to use, the 033 is perfect for hydro- and aquaponic systems.

New product

R 759.00

Availability: In Stock

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pH Meter 033

Spare probe available.


  • PH value within 0-14PH can be measured with high accuracy up to ±0.01PH.

  • Large screen and waterproof design, it is easy to measure and observe the data.

  • Compact pen-shape design, lightweight for mobility..

  • All readings are automatically temperature compensated to ensure accurate testing and long service life.


  • Range: 0.00pH – 14.00pH.

  • Resolution: 0.01 pH.

  • Accuracy: +/-0.1pH.

  • Operating Temp: 0°C to 50°C.

  • Automatic Temperaure Compensation: 0°C to 50°C.

  • Batteries: 4 x 1.5 V (LR44 button cell).


  •  Instruction manual.

  • pH7 Calibration fluid (100ml) and screwdriver.

  • Batteries.


Plants can only use a nutrient solution if the is pH corrected. Different nutrients are absorbed at different pH levels so some hydroponic growers let their pH drift slightly, always toward alkalinity. In hydroponics, the ideal range for most plants is between 5.2 to 6.2, although some plants prefer extremes in acidity or alkalinity. It is always best to use pH water stabilisers when adjusting the pH of a solution. Always adjust the pH AFTER adding nutrients. Tap water is usually alkaline and the pH can range from 6.8 to 8.2, depending on the local water source.

For  more on pH, click here


  • We've pre-calibrated and checked the accuracy of your meter.

  • A new probe has to be 'run in', so always check your calibration every week for the first 4 weeks, then every 2 weeks and then at least once a month.

If you suspect the reading to be wrong, clean the probe and check the batteries.

  • Ensure to calibrate your meter frequently using pH7.00 calibration solution.

  • Keep the probe moist and clean. After usage don't dry your probe but put on the lid while the probe is still wet! If you see residue build-up on the probe, clean it gently with a soft toothbrush or tissue.

To prolong the life of your pH meter and prevent its probe from breaking because it was drying out, we suggest you consider buying a storage solution, click here or at least don't dry the probe before putting back on the lid.

The glass probe is delicate! Avoid dropping or hitting the rim of your reservoir or pot with the glass bulb.

We do sell spare probes for this meter if you broke yours... not all pH meters probes can be exchanged.

Review it
By on 23 Sept. 2019 (pH Meter 033) :

Solid PH tester

Very good for the price. Easy calibration


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Dear Customer,
In order to bring you an improved service, we have changed our couriers and the order delivery process.

We hope that you will find the entire process simpler to use.

We would appreciate your feedback so that we know that we continue to move in the right direction.

Please email us with any problems or comments at
And, of course, if you have a problem that needs immediate attention, give us a call on 079 081 0376 during office hours.