Laboratory Equipment  >>  pH Meters

Ohaus pH Meters
pH Meters
pH meters from ScalesGalore.com are designed to provide accurate and reliable measurement of acidity, alkalinity, and pH levels for laboratory, research, environmental, industrial, food, beverage, and water testing applications. Commonly used for chemical analysis, quality control, agriculture, aquaculture, and scientific research, these instruments help professionals monitor and maintain precise pH conditions for consistent testing and product quality. Available in portable, handheld, and benchtop models with digital displays and advanced sensor technology, pH meters offer fast readings, easy calibration, and dependable performance in demanding laboratory and field environments. Built for accuracy, durability, and ease of use, pH meters are essential tools for precise liquid analysis and testing procedures.

Top 20 Best Selling pH Meters
Ohaus AB33M1-F AQUASEARCHER Multi-Parameter Benchtop Meter with ST310 and STCON3 : -2.00 – 20.00 pH;  -5 °C – 110 °C;  -2000.00 – +2000.00 mV
Ohaus AB33M1-F AQUASEARCHER Multi-Parameter Benchtop Meter with ST310 and STCON3 : -2.00 – 20.00 pH; -5 °C – 110 °C; -2000.00 – +2000.00 mV


Price: $889.41


Ohaus pH20 ST Starter Series Replacement ST20 Electrode
Ohaus pH20 ST Starter Series Replacement ST20 Electrode


Price: $85.60


Ohaus ST300C-G Starter Series Portable Water Conductivity Analysis Meter  (30219115)
Ohaus ST300C-G Starter Series Portable Water Conductivity Analysis Meter (30219115)


Price: $547.41


Ohaus ST400-F Starter Series Portable Waterproof  Water pH Meter - Meter and Electrode
Ohaus ST400-F Starter Series Portable Waterproof Water pH Meter - Meter and Electrode


Price: $587.17


Ohaus ST10 Starter Series Water pH Analysis Pen Meter (30073970)
Ohaus ST10 Starter Series Water pH Analysis Pen Meter (30073970)


Price: $65.25


Ohaus 30393204 Electrode, ST20M-C Replaceable electrode compatible with ST20M-C pen meter
Ohaus 30393204 Electrode, ST20M-C Replaceable electrode compatible with ST20M-C pen meter


Price: $80.75


Ohaus 30393203 Electrode ST20M-B Replaceable electrode compatible with ST20D pen meter
Ohaus 30393203 Electrode ST20M-B Replaceable electrode compatible with ST20D pen meter


Price: $80.75


Ohaus 30222084 Membrane & Electrolyte, ST20D compatible with ST20D pen meter
Ohaus 30222084 Membrane & Electrolyte, ST20D compatible with ST20D pen meter


Price: $145.80


Ohaus 30222083 Electrode, D20 ST Replaceable electrode compatible with ST20D pen meter
Ohaus 30222083 Electrode, D20 ST Replaceable electrode compatible with ST20D pen meter


Price: $267.75


Ohaus 30087992 Electrode, pH10 ST Replaceable pH electrode compatible with ST10 pen meter
Ohaus 30087992 Electrode, pH10 ST Replaceable pH electrode compatible with ST10 pen meter


Price: $51.85


Ohaus ST400D-G Starter Series Dissolved Oxygen (DO) Meter with STDO21:  0.00 – 20.0 mg/L(ppm);  0 – 50°C
Ohaus ST400D-G Starter Series Dissolved Oxygen (DO) Meter with STDO21: 0.00 – 20.0 mg/L(ppm); 0 – 50°C


Price: $1,413.04


Ohaus STDO21 Starter Series Dissolved Oxygen (DO) Probe Cap
Ohaus STDO21 Starter Series Dissolved Oxygen (DO) Probe Cap


Price: $217.50


Ohaus AB23PH-B AQUASEARCHER pH and ORP Benchtop Meter: 0 – 100°C;  0.00 – 14.00 pH;  -1999 – 1999 mV
Ohaus AB23PH-B AQUASEARCHER pH and ORP Benchtop Meter: 0 – 100°C; 0.00 – 14.00 pH; -1999 – 1999 mV


Price: $386.95


Ohaus AB41PH-F AQUASEARCHER Research Grade pH Benchtop Meter with ST410, STTEMP Probe, Stirrer Compact AS20 and pH Buffer Mini Kits: -2.000 – 20.000 pH;  -10.0 °C – 125.0 °C;  -2000.00 – +2000.00 mV
Ohaus AB41PH-F AQUASEARCHER Research Grade pH Benchtop Meter with ST410, STTEMP Probe, Stirrer Compact AS20 and pH Buffer Mini Kits: -2.000 – 20.000 pH; -10.0 °C – 125.0 °C; -2000.00 – +2000.00 mV


Price: $1,018.44


Ohaus AB41PH-B AQUASEARCHER Research Grade pH Benchtop Meter : -2.000 – 20.000 pH;  -10.0 °C – 125.0 °C;  -2000.00 – +2000.00 mV
Ohaus AB41PH-B AQUASEARCHER Research Grade pH Benchtop Meter : -2.000 – 20.000 pH; -10.0 °C – 125.0 °C; -2000.00 – +2000.00 mV


Price: $898.38


Ohaus AB33PH-B AQUASEARCHER  pH Benchtop Meter : -5 °C – 110 °C;  -2.00 – 16.00 pH;  -2000.00 – +2000.00 mV
Ohaus AB33PH-B AQUASEARCHER pH Benchtop Meter : -5 °C – 110 °C; -2.00 – 16.00 pH; -2000.00 – +2000.00 mV


Price: $550.96


Ohaus ST400D-B Starter Series Dissolved Oxygen (DO) Meter: 0.00 – 20.0 mg/L(ppm);  0 – 50°C
Ohaus ST400D-B Starter Series Dissolved Oxygen (DO) Meter: 0.00 – 20.0 mg/L(ppm); 0 – 50°C


Price: $614.86


Ohaus AB33PH-F AQUASEARCHER  pH Benchtop Meter with ST310 : --5 °C – 110 °C;  -2.00 – 16.00 pH;  -2000.00 – +2000.00 mV
Ohaus AB33PH-F AQUASEARCHER pH Benchtop Meter with ST310 : --5 °C – 110 °C; -2.00 – 16.00 pH; -2000.00 – +2000.00 mV


Price: $624.80


Ohaus AB33M1-B AQUASEARCHER Multi-Parameter Benchtop Meter - -2.00 – 20.00 pH;  -5 °C – 110 °C;  -2000.00 – +2000.00 mV
Ohaus AB33M1-B AQUASEARCHER Multi-Parameter Benchtop Meter - -2.00 – 20.00 pH; -5 °C – 110 °C; -2000.00 – +2000.00 mV


Price: $762.45


Ohaus AB33EC-F AQUASEARCHER Conductivity / TDS / Salinity / Resistivity Benchtop Meter with STCON7 - ± 0.5 % Reading ± 2 LSD / 0.001 uS/cm – 1000 mS/cm
Ohaus AB33EC-F AQUASEARCHER Conductivity / TDS / Salinity / Resistivity Benchtop Meter with STCON7 - ± 0.5 % Reading ± 2 LSD / 0.001 uS/cm – 1000 mS/cm


Price: $629.06


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