pH/Temp Meter PH 200

pH/Temp Meter COM 200
pH/Temp Meter COM 200
Product Code: 3523038

R 1,549.00

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pH/Temp Meter PH 200

Spare probes are available.


  • Measurement Range: 0 - 14 pH.

  • Digital automatic calibration (one point), with digital fine-tuning.

  • Automatic Temperature Compensation (ATC).

  • Auto-off function, data-hold function and low-battery indicator.

  • Display: LCD screen includes simultaneous temperature reading.

  • Replaceable sensor.

The pH-200 meter is 3-point checked and factory calibrated to pH 7.0. It can be re-calibrated to any point in its range with digital calibration using the push-buttons. 100ml pH7 calibration fluid included.


  • pH Range: 0 - 14.

  • Temperature Range: 0 - 55°C.

  • Resolution: 0.01 pH; Temperature resolution: 0.1°C. 

  • Accuracy: +/- 0.1 pH; Temperature accuracy: +/-2%.

  • Calibration: Digital automatic calibration with digital fine-tuning.

  • Minimum EC/TDS: 5uS/10ppm.

  • Electrode: Replaceable glass sensor and reference tube electrodes.

  • Power source: 3 x 1.5V button cell batteries (LR44 or equivalent).

  • Dimensions: 18.5 x 3.4 x 3.4cm.


pH in Hydroponics:

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 info on pH, click here


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 you calibrate your meter frequently using pH calibration solution.

Keep the probe moist and clean. If you see residue build-up on the probe, clean gently with a soft toothbrush and vinegar.

The glass probe is delicate! Avoid dropping or damaging it.

To prolong the life of your pH meter and prevent its probe from drying out, we suggest you consider buying a storage solution


COM 200

HM Digital com 200 manual

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