pH Meters

pH Meters

Instruments used to measure the acidity and alkalinity of water, other liquids, and solutions; the difference in voltage between pH-sensitive glass electrodes and reference electrodes is converted into pH units based on the Nernst equation.
Benchtop pH Meters (141)
Portable pH Meters (103)

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1 – 30 of 142 results
1

Fisherbrand™ Accumet™ Basic AB315 Benchtop Laboratory pH/mV Meter PROMO

Ideal for daily pH testing of your routine laboratory samples. The Accumet™ Basic AB315 Benchtop Laboratory pH/mV Meters provide the essential functions needed for common pH measurements, without complicated functions, at a budget-friendly price.

Accuracy (mV) ±0.2 or ±0.05%, whichever is greater
Resolution (pH) 0.01, 0.1
Calibration pH, relative mV (RmV) and temperature
Range (pH) -2 to 18
Accuracy (pH) ±0.01
Data Management Details Printed or CSV Format
Temperature Compensation Automatic or Manual
Display Type LCD, 5 in.
Resolution (mV) 1 mV, 0.1 RmV
Temperature Range (English) 23°F to 221°F
Resolution (Temperature) 0.1°C (0.1°F)
Temperature Range (Metric) −5°C to +105°C
Range (mV) ±2000
Inputs BNC, ATC
Accuracy (Temperature) ±0.3°C (±0.5°F)
2

Fisherbrand™ accumet™ Basic AB315 Benchtop Laboratory pH/mV Meter

Ideal for daily pH testing of your routine laboratory samples. The accumet basic AB315 benchtop meters provide the essential functions needed for common pH measurements, without complicated functions, at a budget-friendly price.

Accuracy (mV) ±0.2 or ±0.05%, whichever is greater
Resolution (pH) 0.01, 0.1
Calibration pH, relative mV (RmV) and temperature
Range (pH) -2 to 18
Accuracy (pH) ±0.01
Data Management Details Printed or CSV Format
Temperature Compensation Automatic or manual
Display Type LCD, 5 in.
Resolution (mV) 1 mV, 0.1 RmV
Temperature Range (English) 23°F to 221°F
Resolution (Temperature) 0.1°C, 0.1°F
Temperature Range (Metric) -5°C to +105°C
Range (mV) ±2000
Inputs BNC, ATC
Accuracy (Temperature) ±0.3°C/±0.5°F
3

Thermo Scientific™ Orion Star™ A211 Benchtop pH Meter

Reliably measure pH, mV, ORP and temperature with our benchtop pH meter for advanced lab analysis and printer or computer interfacing.

Promotions are available
Accuracy (mV) ±0.2 or ±0.05%, whichever is greater
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. 1010003)
Calibration pH with calibration editing option, relative mV, ORP and temperature
Battery Type 4 x AA (sold separately)
Channels 1
Accuracy (pH) ±0.002
Calibration Points 1 to 5
Alarm Output High/low limit alarm, calibration due alarm
Dimensions (L x W x H) 24 cm x 18 cm x 11 cm (9.5 in. x 7.1 in. x 4.3 in.)
Data Management Details Transfer single, range or all data points to printer or computer
Battery Life 800 hr.
Display Type LCD, Graphic with Backlight
Data Points 2000 with Date and Time Stamp
Backlight Option Yes, selectable
Certifications/Compliance CE, TUV 3-1, FCC Class A
Accuracy (Temperature) ±0.1°C
4

Fisherbrand™ accumet™ AP110 Portable pH Meter Kit

Accurate measurements any time, anywhere

5

Fisherbrand™ accumet™ AP115 Portable pH Meter

Accurate measurements any time, anywhere

6

Thermo Scientific™ Elite pH Pocket Testers and Replacement Sensors

Flexible on-the-go pH and temperature testing using durable Elite pocket testers with replaceable sensors for a variety of applications including environmental monitoring, pools, spas and more!

7

Thermo Scientific™ Orion Star™ A121 Portable pH Meter

Take simple pH and temperature measurements with our portable pH meter with easy operation for basic field testing.

Accuracy (mV) ±0.2 or ±0.05%, whichever is greater
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Log Function Type Automatic with Auto-Read Measure Mode, Manual with Continuous Measure Node
Languages English
Calibration pH, relative mV (RmV) and temperature
Battery Type 4 x AA
Channels 1
Accuracy (pH) ±0.01
Calibration Points 1 to 3
Dimensions (L x W x H) 24 cm x 10 cm x 6.5 cm (9.5 in. x 3.9 in. x 2.6 in.)
Data Management Details Internal Data Point Memory
Battery Life 2000 hr.
Display Type LCD
IP Rating IP-67
Data Points 50
Certifications/Compliance CE, TUV 3-1, FCC Class A
Accuracy (Temperature) ±0.1°C
8

Fisherbrand™ accumet™ XL150 Benchtop pH Meters

Provide advanced pH measurements with simple operation and offer a large, vivid color touch-screen display. Fisherbrand accumet XL benchtop meters offer advanced features with simple operation to help ensure your measurements are reliable and your laboratory processes are efficient.

Length (Metric) 24.6 cm
Detection Range Multiple
Length (English) 9.68 in.
Resolution (pH) 0.001, 0.01, 0.1
Range (pH) -2 to 20
Width (Metric) 17.3 cm
Accuracy (pH) ±0.002
Accuracy Multiple
Display Type LCD
Voltage 100/240 V
Resolution (mV) 0.1 mV
Data Points 2000
Certifications/Compliance NIST, ISO, FDA, USDA, EPA
Inputs BNC, ATC
Accuracy (Temperature) ±0.3°C
Height (English) 3.89 in.
Weight (Metric) 1.13 kg
Height (Metric) 9.9 cm
Accuracy (mV) ±0.2
Warranty 3 Years
Dimensions (L x W x H) 24.6 x 17.3 x 9.9 cm (9.7 x 6.8 x 3.9 in.)
Outputs RS-232, USB-A, Mini-B USB, RJ45, stirrer port (2)
Calibration Points (pH) Up to 6 pre-set or 5 custom
Frequency 50/60 Hz
Weight (English) 2.5 lb.
Resolution (Temperature) 0.1°C
Range (mV) ±2000
Resolution Multiple
9

Thermo Scientific™ Orion Lab Star PH111 pH Bench Meters

Orion Lab Star PH111 pH bench meters measure pH or ORP with mV and temperature, feature a large backlit display for easy viewability, and offer small footprint to save bench space. The Orion Lab Star pH meter is ideal for simplified, budget-friendly lab testing and data recording.

10

Thermo Scientific™ Orion Star™ A221 Portable pH Meter

Reliably measure pH, mV, ORP and temperature with our portable pH meter for advanced field analysis and printer or computer interfacing.

Accuracy (mV) ±0.2 or ±0.05%, whichever is greater
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Calibration pH, relative mV (RmV), ORP and temperature
Battery Type 4 x AA
Channels 1
Accuracy (pH) ±0.002
Calibration Points 1 to 5
Alarm Output Calibration due alarm (fixed 12 hour)
Dimensions (L x W x H) 24 x 10 x 6.5 cm (9.5 x 3.9 x 2.6 in.)
Data Management Details Transfer single, range or all data points to printer or computer
Battery Life 800 hr.
Display Type LCD, Graphic with Backlight
Data Points 1000 with Date and Time Stamp
Backlight Option Yes, selectable
Certifications/Compliance CE, TUV 3-1, FCC Class A
Accuracy (Temperature) ±0.1°C
11

Thermo Scientific™ Orion™ Versa Star Pro™ Benchtop pH Meter

Get premium performance and ultimate flexibility with our benchtop pH meter for pH, mV, ORP and temperature measurements on customizable color display.

Promotions are available
Accuracy (mV) ±0.2 or ±0.05%, whichever is greater
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. STARA-PWR)
Languages English, Spanish, French, Italian, German, Chinese, Portuguese and Korean
Calibration pH with calibration editing option, relative mV, ORP and temperature
Channels 4 - customizable with modules
Accuracy (pH) ±0.002
Calibration Points 1 to 6
Alarm Output Set point alarm, high/low limit alarm, calibration due alarm
Dimensions (L x W x H) 28 cm x 24 cm x 10 cm (11 in. x 9.5 in. x 3.9 in.), modules add ≤ 2 cm (0.8 in.) L & H
Data Management Details Transfer single, range or all data points to printer or computer
Display Type LCD, Color Graphic with User-Customizable Options
Data Points 2000 with Date and Time Stamp
Backlight Option Yes
Certifications/Compliance CE, TUV 3-1, FCC Class A
Accuracy (Temperature) ±0.1°C
12

Thermo Scientific™ Orion Star™ A111 Benchtop pH Meter

Take simple pH, mV and temperature measurements with our benchtop pH meter with easy operation for basic lab testing.

Accuracy (mV) ±0.2 or ±0.05%, whichever is greater
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. 1010003)
Log Function Type Automatic with Auto-Read Measure Mode, Manual with Continuous Measure Node
Languages English
Calibration pH, relative mV (RmV) and temperature
Battery Type 4 x AA (sold separately)
Channels 1
Accuracy (pH) ±0.01
Calibration Points 1 to 3
Dimensions (L x W x H) 24 cm x 18 cm x 11 cm (9.5 in. x 7.1 in. x 4.3 in.)
Data Management Details Internal Data Point Memory
Battery Life 2000 hr.
Display Type LCD
Data Points 50
Certifications/Compliance CE, TUV 3-1, FCC Class A
Accuracy (Temperature) ±0.1°C
13

Fisherbrand™ accumet™ AP110 Portable pH Meter

Accurate measurements any time, anywhere

14

Fisherbrand™ accumet™ AP115 Portable pH Meter Kit

Accurate measurements any time, anywhere

15

Thermo Scientific™ Orion™ Versa Star Pro™ pH/LogR™ Benchtop Meter

Get premium performance and ultimate flexibility with our benchtop meter with pH/LogR module for pH, mV, ORP and LogR temperature technology.

Accuracy (mV) ±0.2 or ±0.05%, whichever is greater
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. STARA-PWR)
Languages English, Spanish, French, Italian, German, Chinese, Portuguese and Korean
Calibration pH with calibration editing option, relative mV, ORP, LogR temperature and temperature
Channels 4 - customizable with modules
Accuracy (pH) ±0.002
Calibration Points 1 to 6
Alarm Output Set point alarm, high/low limit alarm, calibration due alarm
Dimensions (L x W x H) 28 cm x 24 cm x 10 cm (11 in. x 9.5 in. x 3.9 in.), modules add ≤ 2 cm (0.8 in.) L & H
Data Management Details Transfer single, range or all data points to printer or computer
Display Type LCD, Color Graphic with User-Customizable Options
Data Points 2000 with Date and Time Stamp
Backlight Option Yes
Certifications/Compliance CE, TUV 3-1, FCC Class A
Accuracy (Temperature) ±0.1°C
16

Thermo Scientific™ Waterproof pH Meter

 

17

Thermo Scientific™ Checker pH Meter with screw-type, epoxy-body electrode

 

18

OHAUS™ Starter Water Analysis Portable pH Meters

LCD meters combine portability with precise pH measurement.

Height (Metric) 3.5 cm
Accuracy (mV) ±1
Resolution (pH) 0.01
Material ABS
Range (pH) 0 to 14
Battery Type AAA
Accuracy (pH) ±0.01
Calibration Points 1 to 3
Data Management Details 30 Sets, most recent calibration data
Battery Life >500 hr.
Display Type LCD
IP Rating IP-54
Depth (Metric) 17 cm
Resolution (mV) 1 mV
Resolution (Temperature) 0.1°C
Range (mV) -1999 to 1999
Inputs BNC, NTC
Accuracy (Temperature) ±0.5°C
Height (English) 1.3 in.
19

OHAUS™ Aquasearcher™ pH Meter AB41PH

The Aquasearcher™ pH Meter AB41PH is an advanced, research-grade benchtop pH meter with electrode, offering accurate, repeatable results with selectable resolution and an intelligent i-Steward system.

Calibration Points Up to 5
Accuracy (mV) ±0.3
Data Management Details Datalog with Time and Date Stamp
Display Type LCD, 6.5 in. Segment and Dot Matrix
Data Points 1000 Sets
Resolution (pH) 0.001, 0.01, 0.1
Measurement Modes Auto-stop, Timed, Continuous
Calibration Offset
Range (pH) -2 to 20
Temperature Range (Metric) -10°C to +125°C
Range (mV) ±2000.0
Accuracy (Temperature) ±0.3°C
Accuracy (pH) ±0.002
20

OHAUS™ Aquasearcher™ pH Meter AB33PH

The Aquasearcher™ pH Meter AB33PH is a highly reliable and user-friendly pH benchtop meter with electrode (ST310) for standard laboratory applications. Designed to measure pH and oxidation-reduction potential with temperature measurements.

Calibration Points Up to 3
Accuracy (mV) ±1
Data Management Details Datalog with Time and Date Stamp
Display Type LCD, 6.5 in. Segment and Dot Matrix
Data Points 1000 Sets
Resolution (pH) 0.01, 0.1
Measurement Modes Auto-stop, Continuous
Calibration Linear
Range (pH) -2 to 16
Temperature Range (Metric) -5°C to +110°C
Range (mV) ±2000.0
Accuracy (Temperature) ±0.5°C
Accuracy (pH) ±0.01
21

OHAUS™ Starter™ pH Meter ST2200

The Starter™ pH Meter ST2200 is an affordable benchtop pH Meter that clearly displays information with five distinctly marked keys, allowing users to operate with minimal training.

Calibration Points 1 to 3
Accuracy (mV) ±1.5
Data Management Details Datalog for Measurements and Last Calibration
Display Type LCD, 3.5 in. Segment Matrix
Resolution (pH) 0.01
Data Points 99 Sets
Measurement Modes Auto-stop, Continuous
Range (pH) 0 to 14
Calibration Linear
Temperature Range (Metric) 0.0°C to 100.0°C
Range (mV) ±1999
Accuracy (Temperature) ±0.5°C
Accuracy (pH) ±0.01
22

OHAUS™ Aquasearcher™ pH Meter AB23PH

The Aquasearcher™ pH Meter AB23PH is a simple to use benchtop meter for measuring pH and oxidation-reduction potential (ORP). An intuitive design and auto-buffer recognition make measuring pH straightforward and easy.

Calibration Points Up to 3
Accuracy (mV) ±1
Data Management Details Datalog for Measurements and Calibration
Display Type LCD, 5 in. Segment Matrix
Resolution (pH) 0.01
Data Points 99 Sets
Measurement Modes Auto-stop, Continuous
Range (pH) 0 to 14
Calibration Linear
Temperature Range (Metric) 0.0°C to 100.0°C
Range (mV) ±1999
Accuracy (Temperature) ±0.5°C
Accuracy (pH) ±0.01
23

Mettler Toledo™ FiveGo™ F2 pH/mV Meters

Portable meter provides reliable and high quality pH/mV measurements with simple click of a button

Promotions are available
Accuracy (mV) ±1
Memory 200 measurements, current calibration
Resolution (pH) 0.01
Range (pH) 0 to 14
Calibration Points 3
Dimensions (L x W x H) 18.8 x 7.7 x 3.3 cm (97.4 x 3 x 1.3 in.)
Temperature Compensation ATC and MTC
Display Type LCD
Resolution (mV) 1mV
Weight (English) 0.5 lb.
Resolution (Temperature) 0.1°
Inputs BNC, Cinch
Accuracy (Temperature) ±0.5°C
Weight (Metric) 0.26 kg
24

Mettler Toledo™ pH Meter SevenDirect SD20

The SevenDirect SD20 is an accurate and flexible benchtop meter for the determination of pH and ORP. The instrument is delivered with an EasyPlace sensor arm.

Promotions are available
25

Mettler Toledo™ FiveEasy™ Plus FP20 pH/mV Meters

Compact, benchtop meter provides high quality pH/mV measurements with simple click of a button.

Promotions are available
Accuracy (mV) ±1
Resolution (pH) 0.01, 0.1
Calibration Linear/Segmented
Range (pH) -2.00 to 16.00
Accuracy (pH) ±0.01
Data Management Details RS232, USB
Temperature Compensation ATC and MTC
Display Type LCD
Resolution (mV) 1mV
Temperature Range (English) 23°F to 221°F
Resolution (Temperature) 0.1°C
Temperature Range (Metric) -5°C to +105°C
Range (mV) 2000 to 2000
Inputs BNC, Cinch, NTC 30kiloOhm sensors
Accuracy (Temperature) 0.3°C
26

Mettler Toledo™ FiveEasy™ F20 pH/mV Meters

Compact, benchtop meter provides high quality pH/mV measurements with simple click of a button

Promotions are available
EDGE
Accuracy (mV) ±1
Memory Current calibration
Resolution (pH) 0.01
Calibration Linear
Range (pH) 0 to 14
Accuracy (pH) ±0.01
Temperature Compensation ATC and MTC
Display Type LCD
Voltage 120/240 V
Resolution (mV) 1mV
Temperature Range (English) 32°F to 212°F
Resolution (Temperature) 0.1°C
Temperature Range (Metric) 0°C to 100°C
Range (mV) 2000 to 2000
Inputs BNC, Cinch, NTC 30kiloOhm sensors
Accuracy (Temperature) 0.5°C
27

OHAUS™ Starter pH Pen Meters

Convenient pH testing. OHAUS Starter pH Pen Meters offer a convenient way to measure pH, or the relative acidity or alkalinity of a sample at a given temperature. The pH pen meters can be completely operated with just one hand, freeing up your other hand to handle samples.

Type Portable pH Meter
Weight (English) 0.24 lb.
For Use With (Application) Measuring pH, or the relative acidity or alkalinity of a sample at a given temperature
Battery Type 4 x AG13 1.5 V Micro Alkaline
Weight (Metric) 110 g
28

METTLER TOLEDO™ SevenExcellence™ S400 Benchtop pH Meter