pH Probe

  • Response time- 90% of final reading in 5 second in a buffer
  • Temperature range- 0 to 80°C (readings temperature compensated)
  • Range pH 0–14
  • Accuracy ± 0.2 pH units
  • Isopotential pH 7 (point at which temperature has no effect)
  • Shaft diameter 12 mm OD

The Mantis pH Probe can be used to measure pH in many of your science projects.  The probe is very robust but a few situations should be avoided with the pH probe:

  • NEVER submerge the plastic sensor end (the corded end) in any liquid as it is not waterproof
  • NEVER exceed the 80⁰ C maximum temperature or you may permanently damage the probe
  • NEVER store the sensor electrode in distilled water
  • NEVER store the sensor electrode dry
  • NEVER use the sensor in an acid or base solution with a concentration of more than 1.0 molar

Some things you should do:

  • ALWAYS keep the plastic end of the sensor dry
  • ALWAYS rinse the sensor tip with distilled water before performing your experiment.  If electrode bead or diaphragm is occluded or contaminated, the following reagents may be used.
    • For fatty or oily product, tensed cleaner.
    • For calcium and sulfide deposits and metal hydroxide coating dilute hydrochloric acid (10%)
    • For material with protein content a cleaning mixture of hydrochloric acid (10%) and pepsin (saturated).
  • ALWAYS follow the storage recommendations for the pH probe and keep the sensor electrode stored in a pH 4 buffer/KCl (potassium chloride)

The pH Probe is ideal for experiments in the chemistry lab, biology lab or physics lab.  The probe is also ideal in gathering data outside of a lab situation!

  • Measuring pH in a lake or river or a lab sample

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