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Electrochemistry Meters

Benchtop or portable instruments and electrodes used to measure various parameters of water and solutions; these include pH, temperature, resistivity, conductivity, ion-specific testing (chlorine and ISE), dissolved oxygen/BOD, ORP, and other water activity measures.
Multiparameter Meters (127)
Conductivity Meters (55)
Dissolved Oxygen Meters (30)
ISE Concentration Meters (13)
Inline Electrochemistry Analyzers (9)
Oxidation Reduction Potential Meters (7)
Karl Fisher Titrators (6)
Chlorine Meters (3)

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1 – 15 of 125 results
1

Fisherbrand™ Traceable™ Expanded Range Conductivity Meter

Ideal for checking the purity of water from stills, deionizers, and reverse osmosis, testing laboratory glassware rinsing, measuring total dissolved solids, and making solutions.

EDGE
2

Fisherbrand™ accumet™ AP125 Portable pH/Ion/mV/Temperature Meter

Accurate measurements any time, anywhere

Accuracy (mV) 0 to ±2000mV
Warranty 3 Years
Measurement Modes pH,Ion,mV,Temperature
Range (pH) 2 to 20
Range -2 to +20pH
For Use With (Application) pH, Ion concentration, mV, Temperature
Includes Meter, 9V battery, manual
Calibration Points 10
Accuracy Multiple
Display Type LCD
Product Type Meter Only
IP Rating IP67
Temperature Range (English) 23°F to 212°F
Data Points 200
Temperature Range (Metric) -5°C to +100°C
Range (mV) 0 to ±2000 mV
Resolution Multiple
3

Fisherbrand™ accumet™ Basic AB330 Benchtop Laboratory Conductivity Meter

Ideal for daily conductivity, TDS and salinity testing of your routine laboratory samples, the accumet™ Basic AB330 Benchtop Meter provides essential functions needed without complicated functions at a budget-friendly price.

Memory Non-volatile
Cell Constant 0.1 to 10
Measurement Modes Conductivity with Temperature,TDS with Temperature,Salinity with Temperature
Temperature (Metric) Reference 15, 20, 25 or 30°C
Temperature Coefficient 0 to 10 %/°C
TDS Factor Range 0.4 to 1
Range (Salinity) 0 to 80 ppt
Data Management Details Printed or CSV Format
Temperature Compensation Linear
Display Type 5 in. LCD
Accuracy (Salinity) ±1% Full Scale
Resolution (Salinity) 0.01, 0.1 ppt
Voltage 100/240 V
Accuracy (Conductivity) ±1% Full Scale
Data Points 500
Inputs Conductivity, ATC
Accuracy (Temperature) ±0.3°C (±0.5°F)
Calibration Points (Conductivity) 84 μS, 1413 μS, 12.88 mS, 111.8 mS
Stability Indicator Icons
Warranty 3 Years
Resolution (Conductivity) 0.01, 0.1, 1 μS; 0.01, 0.1 mS
Range (Conductivity) 0 μS to 500 mS
AC Adapter Universal Power Adapter
Resolution (TDS) 0.01, 0.1, 1 ppm; 0.01, 0.1 ppt
Calibration Conductivity, TDS, Salinity, Temperature
Calibration Points 1 to 5 (Conductivity), 1 to 5 (TDS), 1 (Salinity), 1 (Temperature)
Accuracy (TDS) ±1% Full Scale
IP Rating IP54
Data Logging Automatic with Auto-read and Timed Modes, Manual with Continuous Mode
Model AB330
Outputs Port for Computer or Printer
Frequency 50/60 Hz
Backlight Option Yes
Resolution (Temperature) 0.1°C (0.1°F)
Temperature Range (Metric) -5°C to +105°C
4

Fisherbrand™ accumet™ XL600 Benchtop Dual pH/ISE, Conductivity and Dissolved Oxygen Meters

Provide advanced measurements with simple operation and offer a large, vivid color touch-screen display. Fisherbrand accumet XL600 pH/ISE/conductivity/DO 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
Range (Resistivity) 3 W to 100 MW over 4 ranges: 0 to 20 kW, 20 to 200 kW, 200 kW to 2 MW, 2 to 100 MW
Detection Range Multiple
Length (English) 9.68 in.
Cell Constant 0.01 to 10
Range (pH) -2 to 20
Width (Metric) 17.3 cm
Resolution (ISE) 2/3/4 Digits
Accuracy (pH) ±0.002
Range (ISE) ±2000 mV
Range (Salinity) 0 to 80 ppt
Accuracy Multiple
Data Management Details 3 to 86400 sec.
Display Type LCD
Accuracy (Salinity) ± 1% full scale
Resolution (Salinity) 0.01/0.1ppm, 0.001/0.01/0.1ppt
Voltage 100/240 V
Accuracy (Conductivity) ±1% FS
Resolution (mV) 0.1mV
Resolution (DO) 0.01mg/L (0.1mbar), 0.1% saturation
Data Points 2000
Certifications/Compliance NIST, ISO, FDA, USDA, EPA
Inputs 2 BNC, 2 ATC
Weight (Metric) 1.13 kg
Height (English) 3.89 in.
Calibration Points (Conductivity) Automatic (4 points), maximum 1/range, manual (5 points), maximum 1/range
Height (Metric) 9.9 cm
Accuracy (mV) ±0.2 mV
Accuracy (ISE) 0.5% full scale (monovalent ion), 1% full scale (divalent ion)
Warranty 3 Years
Temperature Accuracy ±0.2°C (±0.3°F)
Calibration Points (ISE) 2 to 6
Accuracy (DO) 0.1 +1 LSD
Resolution (Resistivity) 0.01/0.1W, 0.001/0.1kW, 0.01MW
Resolution (Conductivity) 0.001/0.01/0.1mS
Range (Conductivity) 0 to 500 mS
Accuracy (Resistivity) ± 1% full scale
Range (TDS) 0.050 ppm to 500 ppt (at TDS factor 1.00)
Resolution (TDS) 0.01/0.1ppm, 0.001/0.01/0.1ppt
Dimensions (L x W x H) 24.6 x 17.3 x 9.9cm (9.7 x 6.8 x 3.9 in.)
Accuracy (TDS) ± 1% full scale
Outputs RS232, USB-A, Mini-B USB, RJ45, stirrer port (2)
Frequency 50/60Hz
Calibration Points (pH) Up to 6 preset or 5 custom
Weight (English) 2.5 lb.
Range (mV) ±2000 mV
Range (DO) 0 to 20mg/L (0 to 1272mbar), 0 to 200% saturation with 13-620-SSP electrode
Temperature Resolution 0.1°C
Resolution Multiple
5

Fisherbrand™ Traceable™ Dual-Display Conductivity Meter

Measures conductivity and temperature; includes NIST™ traceability certificate.

6

Fisherbrand™ Traceable™ Conductivity/TDS Meter Pen

Easy-to-use, waterproof conductivity/TDS meter designed for routine analysis and quality control. Simply turn on, insert, and simultaneously read result and temperature.

7

Fisherbrand™ Traceable™ Salinity Meter Pen

Easy-to-use and splash-proof salinity meter designed for routine analysis and quality control. Simply turn on, insert, and simultaneously read result and temperature.

8

Fisherbrand™ Traceable™ Conductivity Meter Pen

Easy-to-use, waterproof conductivity meter designed for routine analysis and quality control. Simply turn on, insert, and simultaneously read result and temperature.

9

Fisherbrand™ Traceable™ pH/ORP/Temperature Meter

Measure critical water quality parameters — without the need to carry multiple units.

10

Thermo Scientific™ Orion Star™ A324 pH/ISE Portable Multiparameter Meter

Accurately monitor pH, ion concentration, mV, ORP and temperature with our pH/ISE portable meter for challenging field testing.

Memory Non-volatile memory preserves data log, calibration log and meter settings
Advanced ISE Functions Segmented (point-to-point) slope, non-linear selectable auto-blank, low concentration range stabilit
Languages English, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update
Measurement Modes pH,mV,Relative mV,ORP,Ion Concentration (ISE) with Temperature
Resolution (ISE) 0.0001 minimum, 1 to 3 significant digits (user selectable)
Power Supply 4 AA batteries (included) or universal AC adapter (sold separately)
Data Management Details Transfer single, range or all data points to printer or computer
Battery Life 800 hr.
Display Type LCD Graphic, Backlit
Resolution (mV) 0.1mV
Data Points 5000 with Date and Time Stamp
Temperature Probe Calibration 1 point temperature offset calibration
Certifications/Compliance CE, TUV 3-1, FCC Class A
Accuracy (mV) ±0.2 mV or ±0.05% of reading whichever is greater
Accuracy (ISE) ±0.2 mV or ±0.05% of reading whichever is greater
Warranty 3 Year Meter
Temperature Accuracy ±0.1°C
Stability Selectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
Calibration Points (ISE) 1 to 5
Log Function Type Automatic data logging with Auto-Read and Timed measure modes; manual data logging with Continuous m
Battery Type 4 AA (included)
Relative Humidity Range 5 to 85 %, non-condensing
Dimensions (L x W x H) 24cm x 10cm x 6.5cm (9.5 in. x 3.9 in. x 2.6 in.)
Temperature Selection Manual or automatic with ATC temperature probe
Keypad Comprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
Outputs USB, RS232
Temperature Range (English) 22.0°F to 221.0° F
Range (Relative mV) ±2000.0 mV
Calibration Points (pH) 1 to 5
Backlight Option Yes (Selectable)
Range (mV) ±2000.0 mV
Range (ORP) ±2000.0 mV
Methods 10 per channel with password protection
Range (pH) -2 to 20
Channels 1
Accuracy (pH) ±0.002
Range (ISE) 0.0001 to 19900 with selectable units of ppm, Molar, mg/L, %, ppb or none
Inputs BNC (pH, ORP or ion selective electrode), pin-tip (reference electrode), 8 pin MiniDIN (ATC temperature probe)
Weight (Metric) 0.5 kg
Temperature (English) Operating 41°F to 113°F (ambient)
Isopotential Point 7.000pH
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Calibration pH with calibration editing option, ion concentration (ISE) with calibration editing option, relativ
Calibration Points 1 point relative mV (RmV) mode, 1 point ORP mode
Alarm Output High/low limit alarm, calibration due alarm
IP Rating IP67
Model Orion Star A324 pH/ISE/mV/RmV/ORP/Temperature Portable Meter
Weight (English) 1.2 lb.
Temperature (Metric) Operating 5°C to 45°C (ambient)
Temperature Range (Metric) -5.0°C to +105.0°C
Temperature Resolution 0.1°C, 0.1°F
11

Thermo Scientific™ Orion Star™ A326 pH/Dissolved Oxygen Portable Multiparameter Meter

Accurately measure pH, dissolved oxygen and temperature with our pH/DO/RDO portable meter for high performance in challenging field tests.

Resolution (Polarographic DO) 0.01, 0.1mg/L
Pressure Range 400 to 850mmHg
Memory Non-volatile memory preserves data log, calibration log and meter settings
Languages English, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update
Measurement Modes pH,mV,Relative mV,ORP with Temperature,Dissolved Oxygen (% Saturation),Dissolved Oxygen (mg/L with Temperature)
Power Supply 4 AA batteries (included) or universal AC adapter (sold separately)
Barometric Pressure Correction 400 to 850mmHg, automatic using built-in barometer or manual entry
Data Management Details Transfer single, range or all data points to printer or computer
Battery Life 800 hr.
Display Type LCD Graphic, Backlit
Resolution (mV) 0.1mV
Data Points 5000 with Date and Time Stamp
Calibration Modes Water-saturated air, air-saturated water, manual (Winkler titration), zero point
Temperature Probe Calibration 1 point temperature offset calibration
Certifications/Compliance CE, TUV 3-1, FCC Class A
Salinity Factor 0.0 to 45.0 ppt, automatic correction using manual entry of sample salinity
Accuracy (mV) ±0.2 mV or ±0.05% of reading whichever is greater
Warranty 3 Year Meter
Temperature Accuracy ±0.1°C
Stability Selectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
Log Function Type Automatic data logging with Auto-Read and Timed measure modes; manual data logging with Continuous m
Battery Type 4 AA (included)
Relative Humidity Range 5 to 85 %, non-condensing
Range (RDO) 0.00 to 50.00mg/L
Dimensions (L x W x H) 24cm x 10cm x 6.5cm (9.5 in. x 3.9 in. x 2.6 in.)
Temperature Selection Manual or automatic with ATC temperature probe
Percent Saturation Range (RDO) 0.0 to 500.0 % saturation
Keypad Comprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
Outputs USB, RS232
Temperature Range (English) 22.0°F to 221.0° F
Range (Relative mV) ±2000.0 mV
Calibration Points (pH) 1 to 5
Backlight Option Yes (Selectable)
Percent Saturation Relative Accuracy (RDO) ±2 % saturation ≤ 200 % saturation, ±10 % saturation > 200 % saturation
Range (Polarographic DO) 0.00 to 90.00mg/L
Range (mV) ±2000.0 mV
Accuracy (Barometer) ±6mmHg
Range (ORP) ±2000.0 mV
Methods 10 per channel with password protection
Pressure Resolution 1mmHg
Range (pH) -2 to 20
Channels 2
Accuracy (pH) ±0.002
Resolution (RDO) 0.01, 0.1mg/L
Percent Saturation Resolution (RDO) 0.1, 1 % saturation
Percent Saturation Relative Accuracy (Polarographic DO) ±2 % saturation or ±2% of reading whichever is greater
Inputs BNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (ATC temperature probe), 9 pin MiniDIN (RDO optical or polarographic DO sensor with built-in temperature)
Weight (Metric) 0.5 kg
Temperature (English) Operating 41°F to 113°F (ambient)
Isopotential Point 7.000pH
Accuracy (Polarographic DO) ±0.2mg/L or ±2% of reading, whichever is greater
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Calibration pH with calibration editing option, relative mV (RmV), ORP, dissolved oxygen and temperature
Calibration Points 1 point relative mV (RmV) mode, 1 point ORP mode
Alarm Output High/low limit alarm, calibration due alarm
IP Rating IP67
Percent Saturation Resolution (Polarographic DO) 0.1, 1 % saturation
Model Orion Star A326 pH/mV/RmV/ORP/RDO Optical/Dissolved Oxygen/Temperature Portable Meter
Weight (English) 1.2 lb.
Temperature (Metric) Operating 5°C to 45°C (ambient)
Temperature Range (Metric) -5.0°C to +105.0°C
Percent Saturation Range (Polarographic DO) 0.0 to 600.0 % saturation
Temperature Resolution 0.1°C, 0.1°F
Accuracy (RDO) ±0.1mg/L up to 8mg/L, ±0.2mg/L from 8 to 20mg/L, ±10% of reading up to 50mg/L
12

Ohaus™ Starter ST20M-C Multi-Parameter Pen Meter

Compact design for fast, convenient electrochemistry reading. Measure conductivity, pH, temperature and salinity with the same meter. IP67, automatic temperature compensation, 3-point calibration and auto-off after 6 minutes of non-use

13
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METTLER TOLEDO™ S600 SevenExcellence™ Dissolved Oxygen Benchtop Meter Kit

The S600 meter kit includes a meter, electrode, and accessories to measure disolved oxygen (DO). The meter can be expanded with additional modules to measure pH, conductivity, and ISE. It has an intuitive touchscreen, measurement shortcuts, and can export data to a printer, Excel, or LIMS system.

14

OHAUS™ Aquasearcher™ Multi-Parameter Analyzer AB33M1

The Aquasearcher™ Multi-Parameter Analyzer AB33M1 is easy-to-use and accurate, capable of measuring up to seven parameters including pH, ORP, conductivity, TDS, salinity, resistivity, and temperature.

Display Type LCD
Range (Resistivity) 2 to 100 MΩ-cm
IP Rating None
Range (Conductivity) 0.01 μS/cm to 500 mS/cm
Outputs RS232, USB Device (Included)
Range (TDS) 0.1 mg/L to 199.9 g/L
Measurement Modes Auto-stop,Continuous
Range (pH) -2 to 20
Temperature Range (Metric) -5°C to +110°C
Range (mV) -2000 to 2000 mV
Resolution (ISE) 0.01 pH
Channels pH, Conductivity
Range (Salinity) 0 to 100 psu
15

Thermo Scientific™ Elite ORP Pocket Testers and Replacement Sensors

Flexible on-the-go ORP testing using durable Elite ORP pocket testers with replaceable sensors for a variety of applications including hydroponics, food and beverage, environmental and more!