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 virtually all kinds of manufacturing.
Top 6 Questions You Should Ask When Buying a pH Meter
- 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?
- What is the replacement cost for a pH electrode?
- What accessories are included with the meter?
- What is the complete cost of all accessories needed to operate the meter?
- 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?
- What makes the company different from other companies that manufacture similar products?
- 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 | 59% |
| Benchtop - multi parameter | 44% |
| Portable - pH only | 27% |
| Portable - multi parameter | 20% |
| In-line - pH only | 3% |
| In-line - multi parameter | 3% |
| Other | 1% |
Methods used to measure pH as reported by survey respondents:
| Glass-electrode method | 67% |
| Hydrogen-electrode method | 11% |
| Indicator methods | 9% |
| Metal-electrode methods | 8% |
| Quinhydron-electrode method | 1% |
| Other | 2% |
Nearly 55% of respondents are engaged in purchasing a new pH meter. The reasons for these purchases are as follows:
 | Replacement of an aging system | 67% |  |
 | Addition to existing systems, increase capacity | 17% | |
 | Setting up a new lab | 5% | |
 | First time purchase | 3% | |
 | Other | 8% |
Top 10 features/factors respondents look for when purchasing a pH meter:
| Ease of use | 77% |
| Resolution and accuracy of the meter | 75% |
| Low Maintenance / Easy-to-clean | 72% |
| Autocalibration with temperature compensation | 66% |
| Availability of supplies and accessories | 46% |
| Heavy-duty and waterproof | 42% |
| Detachable Electrode Probe | 42% |
| Longer-lived refillable electrode type | 40% |
| Warranty | 39% |
| Service and support | 38% |
For more information on pH meters, including useful articles and a list of manufacturers, visit www.labmanager.com/ph-meters
See results from previous pH meter surveys:
