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.
Top 6 Questions You Should Ask When Buying a pH Meter
1. What type of connector does the meter use?
a. Is it a BNC or DIN?
b. Is it proprietary or can other manufacturer’s probes be used with it?
2. What is the replacement cost for a pH electrode?
3. What accessories are included with the meter?
a. What is the complete cost of all accessories needed to operate the meter?
4. What type of after sales support is offered?
a. If something goes wrong with the meter, can it be fixed locally?
b. 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).
Type(s) of pH meter(s) our readers are using or planning to purchase for their labs, based on our latest survey:
| Currently Using | Planning to Purchase | |
| Benchtop pH meter | 53% | 4% |
| Handheld pH meter | 22% | 4% |
| Tester pH meter | 3% | 2% |
| In-line pH meter | 8% | 2% |
| Other | 2% | 0% |
The methods for measuring pH respondents
use in their labs:
| Glass-electrode method | 58% |
| Indicator methods | 23% |
| Metal-electrode methods | 9% |
| Hydrogen-electrode method | 8% |
| Quinhydron-electrode method | 1% |
| Antimony-electrode method | 1% |
| Other | 1% |
Challenges our readers are currently experiencing
with their pH meter(s):
Recently Released pH meters HI 22091 pH/mV Meter Hanna Instruments PH-1 Meter Accessory for iPhone & iPod Sensorex Mobile pH Meter Metrohm SevenCompact™ Benchtop Meters Mettler Toledo
pH Meter Manufacturers
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