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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 (89)
Portable pH Meters (69)

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1 – 15 of 93 results
1

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

Ideal for daily pH testing of your routine laboratory samples, the accumet™ Basic AB315 Benchtop Meter provides essential functions needed for common pH measurements without complicated functions, all at a budget-friendly price.

Promotions are available
Memory Non-volatile
Resolution (pH) 0.01, 0.1
Measurement Modes pH with mV and Temperature,Relative mV with mV and Temperature
Range (pH) -2 to 18
Channels 1 Channel
Accuracy (pH) ±0.01
Temperature Compensation Automatic, Manual
Data Management Details Printed or CSV Format
Display Type 5 in. LCD
Voltage 100/240 V
Resolution (mV) 1 mV, 0.1 RmV
Data Points 500 Points
Inputs BNC, ATC
Accuracy (Temperature) ±0.3°C (±0.5°F)
Accuracy (mV) ±0.2 or ±0.05%, Whichever is Greater
Stability Indicator Icons
Warranty 3 Years
AC Adapter Universal Power Adapter
Log Function Type Automatic, Manual
Calibration pH, Relative mV, Temperature
Calibration Points 1 to 5 (pH), 1 (Relative mV), 1 (Temperature)
IP Rating IP54
Model AB315
Outputs Port for Computer or Printer
Frequency 50/60 Hz
Range (Relative mV) ±2000 mV
Backlight Option Yes
Temperature Range (English) 23°F to 221°F
Calibration Points (pH) USA: 2, 4.01, 7, 10.01, 12; NIST: 1.68, 4.01, 6.87, 9.18, 12.46; DIN: 1.09, 3.06, 4.65, 6.79, 9.23, 12.75; FSCI: 1, 3, 6, 8, 10, 13
Resolution (Temperature) 0.1°C (0.1°F)
Temperature Range (Metric) -5°C to +105°C
Range (mV) ±2000 mV
2

Thermo Scientific™ Orion Lab Star PH111 Bench pH Meters

Orion Lab Star PH111 benchtop pH 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.

Promotions are available
Memory Non-volatile
Resolution (pH) 0.001, 0.01, 0.1
Measurement Modes pH with mV and Temperature,ORP with mV and Temperature
Data Management Details Transfer single or all data points to printer or computer
Display Type LCD, 5 in. Backlit
Resolution (mV) 0.1 mV
Data Points 500 with Date and Time Stamp
Certifications/Compliance CE, TUV 3-1, FCC Class A
Temperature Probe Calibration 1 point temperature offset calibration
Inputs BNC for pH or ORP, 8-pin MiniDIN for ATC
Accuracy (Temperature) ±0.3°C/±0.5°F
Weight (Metric) 700 grams
Accuracy (mV) ±0.2 or ±0.05%, whichever is greater
Warranty 3 year meter warranty
AC Adapter Universal 100-240 V 50/60 Hz power supply with twist-and-lock meter connection and interchangeable wall plugs for US/Japan, Euro, UK/Singapore, Australia/New Zealand and China outlets
Log Function Type Automatic with Auto-Read and Timed Read Modes, Manual with Continuous Read Mode
Calibration pH, ORP and temperature
Calibration Points 1 (ORP)
Alarm Output Calibration reminder alarm
IP Rating IP54
Temperature Selection Manual or automatic with ATC temperature probe
Outputs Computer or printer (STARA-106)
Backlight Option Yes
Temperature Range (English) 23.0°F to 221.0°F
Calibration Points (pH) 1 to 5 points
Weight (English) 1.54 lb.
Resolution (Temperature) 0.1°C, 0.1°F
Temperature Range (Metric) -5.0°C to +105.0°C
Range (mV) ±2000.0
Range (ORP) ±2000.0 mV with ±250 mV offset
3

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
Memory 200 measurements, current calibration
Resolution (pH) 0.01, 0.1
Range (pH) -2.00 to 16.00
Calibration Linear/Segmented
Accuracy (pH) ±0.01
Temperature Compensation ATC and MTC
Dimensions (L x W x H) 22.7 x 14.7 x 7 cm (9 x 5.7 x 2.7 in.)
Data Management Details RS232, USB
Display Type LCD
Voltage 120/240 V
Resolution (mV) 1mV
Frequency 50/60 Hz
Temperature Range (English) 23°F to 221°F
Weight (English) 1.4 lb.
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
Weight (Metric) 0.63 kg
4

Jenway™ 550 portable pH meter supplied in carry case with epoxy combination pH electrode, ATC probe and batteries

550 portable pH meter supplied in carry case with epoxy combination pH electrode, ATC probe and batteries. A small, lightweight general purpose pH meter offering 2 point pH calibration and automatic buffer recognition. Simultaneously displays both the temperature compensated pH readings and temperature.

Promotions are available
5

Hanna Instruments™ Checker™ pH Tester and Replacement Part

For use with virtually any electrode that shares same connector.

6

Brannan™ Soil Analysis pH Meter

Instantly tells you how acid or alkaline yo soil is and checks which plants suit.

7

Fisherbrand™ accumet™ AET15 pH Tester

Large display screen - dual display LCD for enhanced readability, provides comprehensive meter information

Promotions are available
8

Fisherbrand™ accumet™ FE150 Benchtop pH Meter

Provides the essential functions needed for routine pH measurements without complicated features and processes at a budget-friendly price.

Promotions are available
Accuracy (mV) ±0.2 ±199.9 ±2 Beyond ±200
Electrical Requirements AC/DC 9 V Adapter (110/220 VAC, 50/60 Hz)
Memory 100 Data Sets
Resolution (mV) 0.1 mV (±199.9 mV); 1 mV Beyond ±200 mV
Outputs Recorder (±2000 mV)
Temperature Probe Calibration Offset in 0.1°C Increments; Offset Range: ±5°C
Resolution (Temperature) 0.1°C
Range (pH) 0 to 14
Temperature Range (Metric) 0°C to 100°C
Range (mV) ±1999 mV
Inputs BNC, 2.5 mm Phono Plug, Reference Pin Tip, Ground
9

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
Range (pH) 0 to 14
Calibration Linear
Accuracy (pH) ±0.01
Temperature Compensation ATC and MTC
Dimensions (L x W x H) 22.7 x 14.7 x 7 cm (9 x 5.7 x 2.7 in.)
Display Type LCD
Voltage 120/240 V
Resolution (mV) 1mV
Frequency 50/60 Hz
Temperature Range (English) 32°F to 212°F
Weight (English) 1.4 lb.
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
Weight (Metric) 0.63 kg
10

Thermo Scientific™ Orion Star™ A211 Benchtop pH Meter
BIOPHARMA

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

Promotions are available
Memory Non-volatile memory preserves data log, calibration log and meter settings
Resolution (pH) 0.001, 0.01, 0.1
Languages English, Spanish, French, Italian, German and Chinese; Portuguese and Korean Available with Software Update
Measurement Modes pH,mV,Relative mV,ORP with Temperature
Range (pH) -2 to 20
Channels 1
Accuracy (pH) ±0.002
Power Supply Universal AC adapter (included) or 4 AA batteries (sold separately)
Battery Life 800 hr.
Data Management Details Transfer single, range or all data points to printer or computer
Display Type LCD, Graphic with Backlight
Resolution (mV) 0.1mV
Data Points 2000 with Date and Time Stamp
Certifications/Compliance CE, TUV 3-1, FCC Class A
Temperature Probe Calibration 1 point temperature offset calibration
Inputs BNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (ATC temperature probe), stirrer input (stirrer probe)
Accuracy (Temperature) ±0.1°C
Weight (Metric) 0.9 kg
Accuracy (mV) ±0.2 or ±0.05%, whichever is greater
Stability Selectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
Temperature (English) Operating 41°F to 113°F (ambient)
Isopotential Point 7.000pH
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. 1010003)
Log Function Type Automatic with Auto-Read and Timed Read Modes, Manual with Continuous Read Mode
Calibration pH with calibration editing option, relative mV, ORP and temperature
Battery Type 4 x AA (sold separately)
Relative Humidity Range 5 to 85%, non-condensing
Calibration Points 1 to 5
Alarm Output High/low limit alarm, calibration due alarm
IP Rating IP-54
Temperature Selection Manual or automatic with ATC temperature probe
Keypad Comprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
Model Orion Star A211 pH/mV/RmV/ORP/Temperature Benchtop Meter
Outputs USB, RS-232
Range (Relative mV) ±2000.0mV
Backlight Option Yes, selectable
Temperature Range (English) 22.0°F to 221.0°F
Weight (English) 2 lb.
Resolution (Temperature) 0.1°C, 0.1°F
Temperature (Metric) Operating 5°C to 45°C (ambient)
Temperature Range (Metric) -5°C to +105°C
Methods 10 per channel with password protection
Range (ORP) ±2000.0mV
11

Eutech™ EcoTestr pH Meter

Eutech™ offers a wide range of pH meters and electrodes that measure pH values in various educational, laboratory and industrial applications.

Promotions are available
Battery Life 250 hr.
IP Rating IP67
Resolution (pH) 0.1
Measurement Modes pH
Battery Type A76/LR44 Alkaline
Accuracy (pH) ±0.1
12

Thermo Scientific™ Eutech™ pH 5+ pH meter

Eutech™ offers a wide range of pH meters and electrodes that measure pH values in various educational, laboratory and industrial applications. 

Promotions are available
13

Fisherbrand™ accumet™ AE6 Portable pH/ORP Meter

The AE6 Portable pH Meters are ideal for quick, accurate conductivity or TDS checks in laboratories, field and schools.

Promotions are available
Accuracy (mV) ±1
Resolution (pH) 0.01
Range (pH) 0 to 14
Calibration 1.68, 4.01, 7, 10.01, 12.45
For Use With (Application) Water Quality Testing
Battery Type AAA
Accuracy (pH) ±0.01
Calibration Points 1 to 5
Type Portable Meter
Temperature Compensation Automatic/Manual (0°C to 100°C)
Resolution (mV) 1 mV
Resolution (Temperature) 0.1°C
Temperature Range (Metric) 0°C to 100°C
Range (mV) -1000 to +1000 mV
Accuracy (Temperature) ±0.5°C
14

Fisherbrand™ Waterproof pH Pen

pH measurement is easier than ever with the Fisherbrand™ pH Pen. An economical range pocket-size tester designed for on-the-go pH measurements.

Promotions are available
15

Thermo Scientific™ Eutech™ pH 2700 pH Meter

Eutech™ offers a wide range of pH meters and electrodes that measure pH values in various educational, laboratory and industrial applications. 

Promotions are available
Accuracy (mV) ±0.2
Log Function Type Automatic Data Logging
Data Points 500 with Date and Time Stamp
Resolution (pH) 0.001, 0.01, 0.1
Range (pH) -2 to 20
Temperature Range (Metric) 0°C to 100°C
Accuracy (pH) ±0.002