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2015 pH Meters Product Survey Results

The expanded features in today’s pH meters reflect the broad use of this technology. Researchers use pH meters in a wide range of research fields—including biological and chemical, agricultural and environmental, and more—and virtually all kinds of manufacturing.

Trevor Henderson, PhD

Trevor Henderson BSc (HK), MSc, PhD (c), is the creative services director at Lab Manager.  He has more than two decades of experience in the fields of scientific...

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Top 6 Questions You Should Ask When Buying a pH Meter

  1. What type of connector does the meter use?
    • Is it a BNC or DIN?
    • Is it proprietary or can other manufacturers’ probes be used with it?
  2. What is the replacement cost for a pH electrode?
  3. What accessories are included with the meter?
    • What is the complete cost of all accessories needed to operate the meter?
  4. What type of after sales support is offered?
    • If something goes wrong with the meter, can it be fixed locally?
    • What is the general turnaround time for repair?
  5. What makes the company different from other companies that manufacture similar products?
  6. What additional types of features are offered? (GLP data, PC connectivity (USB vs RS 232), calibration timeout, number of calibration points, ISE concentration readout, incremental methods for ISE and mv readout of concentration during calibration process).

Types of pH meter(s) used by survey respondents:

Benchtop - pH only 58%
Benchtop - multi parameter 49%
Portable - pH only 30%
Portable - multi parameter 14%
In-line - pH only 5%
In-line - multi parameter 2%

Methods used to measure pH as reported by survey respondents:

Glass-electrode method 71%
Hydrogen-electrode method 11%
Indicator methods 8%
Metal-electrode methods 7%
Quinhydron-electrode method 0.4%
Antimony-electrode method 0.4%
Other 2%

Nearly 58% of respondents are engaged in purchasing a new pH meter. The reasons for these purchases are as follows:

Replacement of an aging system
Addition to existing systems, increase capacity
Setting up a new lab
First time purchase

Top 10 features/factors respondents look for when purchasing a pH meter:

Resolution and accuracy of the meter 87%
Ease of use 86%
Low Maintenance / Easy-to-clean 76%
Autocalibration with temperature compensation 57%
Availability of supplies and accessories 56%
Heavy-duty and waterproof 48%
Longer-lived refillable electrode type 47%
Warranty 45%
Multi-level LCD display; display current measurement simultaneously with the current temperature 45%
Service and support 45%

For more information on pH meters, including useful articles and a list of manufacturers, visit

See the most recent survey results