Pocket pH and Temperature Tester, HM Digital Brand

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Brand HM Digital

pH Meter 


  • Measures pH and temperature

  • Auto-ranging three point calibration with digital fine tuning

  • Includes 4 pH buffer solution in a sponge embedded in a clear cap, so you can see if it is dried up

  • Waterproof housing

  • Measurement Range: 0-14 pH; 0-80 deg C; 32-176 deg F

  • Digital calibration (push button)

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

  • Large and easy-to-read LCD screen, includes simultaneous temperature reading

  • Factory calibrated three-point to 4, 7, and 10 pH.  The meter can be recalibrated with digital calibration using the push buttons, instead of a screwdriver

  • Includes a cap, batteries, and lanyard

  • Electrode: Replacable glass sensor and reference tube electrodes

  • Accuracy: +/- .02%

  • Power source:  three 1.5V button cell batteries (included)

Note from the manufacturer:  Each PH-200 comes with a small packet of pH 7 Buffer powder, and a sachet of electrode storage solution.   Note that the cap over the probe is not 100% air tight, and the solution does evaporate while in transit, which may cause visible salt crystals residue. This is not corrosion. The residue can be easily removed by dropping a tiny bit of water into the cap to dissolve the salt.  The reference electrodes in this pH sensor are encased in glass to allow it to stay moist even if the cap is dry, which also allows for ease of re-saturation.