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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 (341)
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Inline Electrochemistry Analyzers (31)
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16 – 30 of 585 results
16

Thermo Scientific™ Orion™ Pro Star MP218 pH/ion, Conductivity and DO Bench Meter
SDP

Designed to provide accurate and reliable pH, ORP, ion, conductivity, TDS, salinity, resistivity, DO, barometric pressure and temperature analysis, the Thermo Scientific™ Orion™ Pro Star MP218 bench meter is well suited for laboratories that desire a modern meter with advance performance.

Salinity Measurement Modes Natural Seawater (ppt), Practical Salinity Units (PSU), or % NaCl
Resolution (Polarographic DO) 0.1, 1% saturation; 0.01, 0.1 mg/L or ppm
Pressure Range 400.0 to 850.0 mmHg; 0.533 to 1.133 bar
Range (Resistivity) 1.0Ω to 100.0 MΩ
Memory Non-volatile
Advanced ISE Functions Single known addition, single known subtraction, double known addition, double known subtraction, analyte addition and analyte subtraction
Resolution (pH) 0.1, 0.01 or 0.001 pH
Languages Chinese, English, French, German, Italian, Japanese, Korean, Portuguese, Spanish
Measurement Modes pH,ORP,mV,Ion Concentration (ISE),Conductivity,Dissolved Oxygen (mg/L),Temperature,Barometric Pressure
Resolution (ISE) 0.0001 minimum, 1 to 5 digits
Barometric Pressure Correction Yes, automatic with built-in barometer or manual
Display Type 7-in. High-resolution Color Graphic LCD
Resolution (mV) 0.1 mV
Resolution (Ion) 0.0001 minimum, 1 to 5 digits
Data Points 10,000 with Date and Time Stamp
Calibration Modes Water-saturated air (100% and 0% saturation), air-saturated water (100% and 0% saturation) or custom concentration value (Winkler)
Temperature Probe Calibration 1 or 2 point temperature offset calibration
Certifications/Compliance CE, TUV 3-1, FCC Class A
Probe Type Polarographic or optical DO electrode
Salinity Factor 0.0 to 50.0 ppt; automatic with conductivity measurement or manual entry
Accuracy (mV) ±0.2 mV or ±0.05% of the reading, whichever is greater
Accuracy (ISE) ±0.2 mV or ±0.05% of the reading, whichever is greater
Warranty 2 year meter warranty
Temperature Accuracy ±0.3°C, ±0.5°F
Calibration Points (ISE) Up to 5
Resolution (Conductivity) 0.001 μS/cm minimum, auto-ranging, up to 4 digits
Range (Conductivity) 0.010 μS/cm to 3000 mS/cm
Log Function Type Automatic with Auto-Read and Timed Read Modes, Manual with Continuous Read Mode
Percent Saturation Range Polarographic DO 0.0 to 600.0% saturation
Range (RDO) 0.0 to 600.0% saturation; 0.01 to 90.0 mg/L or ppm
Dimensions (L x W x H) 218.9 x 153.2 x 91.33 mm; 8.62 x 6.03 x 3.60 in.
Accuracy (TDS) ±0.5% reading
Temperature Selection Automatic with ATC temperature sensor, ambient or manual
Percent Saturation Range (RDO) 0.0 to 600.0% saturation
Keypad Capacitive touchscreen user interface
Outputs USB flash drive, computer or printer (STARA-106)
Temperature Range (English) -22.0°F to +266.0°F
Range (Relative mV) -2000 to 2000 mV
Calibration Points (pH) 1 to 5 points
Backlight Option Yes
Percent Saturation Relative Accuracy (RDO) ±2% saturation
Range (Polarographic DO) 0.0 to 600.0% saturation; 0.01 to 90.0 mg/L or ppm
Range (mV) -2000 to 2000 mV
Accuracy (Barometer) ±6.0 mmHg; ±0.008 bar
Range (ORP) -2000 to 2000 mV
Methods 10 per channel (30 total)
Cell Constant 0.100 cm-1, 0.475 cm-1, 0.550 cm-1, 1.000 cm-1, 10.00 cm-1 or user-defined from 0.001 to 199.9 cm-1
Temperature (Metric) Reference 5, 10, 15, 20, 25 or 30°C
Range (pH) -2 to 20
TDS Factor Range Linear (0.01 to 10.00), ISO/EN 27888, 442, NaCl
Channels 3
Accuracy (pH) ±0.002 pH
Range (ISE) 0.0001 to 19999
Range (Salinity) 0.010 to 80.00 ppt; 0.01 to 42.00 PSU; or 0.01 to 400.0% NaCl
Resolution (RDO) 0.1, 1% saturation; 0.01, 0.1 mg/L or ppm
Temperature Compensation Linear (0.00 to 10.00 %/°C), nLFn (non-linear natural water), nLFu (non-linear ultra-pure water), EP/USP or off
Accuracy (Salinity) ±0.5% reading
Resolution (Salinity) 0.001 ppt minimum; 0.01 PSU minimum; or 0.01% NaCl minimum, auto-ranging
Percent Saturation Resolution (RDO) 0.1, 1% saturation
Accuracy (Conductivity) ±0.5% reading
Resolution (DO) 0.1, 1% saturation; 0.01, 0.1 mg/L or ppm
Percent Saturation Relative Accuracy (Polarographic DO) ±2% saturation
Inputs Channel 1: BNC for pH, ORP or ISE, 8-pin MiniDIN for ATC, pin-tip for reference; Channel 2: 8-pin MiniDIN for conductivity with ATC; Channel 3: 9-pin MiniDIN for dissolved oxygen with ATC
Weight (Metric) 1.00 kg
Resolution (ORP) 0.1 mV
Calibration Points (Conductivity) 1 to 5 points
Accuracy (DO) ±2% saturation; ±0.02 mg/L or ppm
Resolution (Resistivity) 0.1 Ωminimum, auto-ranging
Isopotential Point 7.000 pH; 1.000 ion concentration
Accuracy (Polarographic DO) ±2% saturation; ±0.02 mg/L or ppm
Accuracy (Resistivity) ±0.5% reading
AC Adapter Universal 100-240 V 50/60 Hz power supply with wall plugs for US/Japan, Euro, UK/Singapore, Australia/New Zealand and China outlets
Range (TDS) 0.010 ppm to 500.0 ppt (TDS factor of 1.00); or 0.010 mg/L to 500.0 g/L (TDS factor of 1.00)
Resolution (TDS) 0.001 ppm or mg/L minimum, auto-ranging, up to 4 digits
Calibration pH, ORP, Ion Concentration, Conductivity, TDS, Salinity, DO, Barometric Pressure, Temperature
Accuracy (ORP) ±0.2 mV or ±0.05% of the reading, whichever is greater
Calibration Points 1 to 5 (pH), 1 (ORP), 1 to 5 (ion), 1 to 5 (conductivity), 1 to 5 (TDS), 1 (salinity), 1 to 2 (DO), 1 (barometer), 1 to 2 (temperature)
Alarm Output Calibration reminder alarm, high and low limit alarm per parameter
IP Rating IP54
Percent Saturation Resolution (Polarographic DO) 0.1, 1% saturation
Weight (English) 2.20 lbs.
Range (Ion) 0.0001 to 19999
Temperature Range (Metric) -30.0°C to +130.0°C
Range (DO) 0.0 to 600.0% saturation; 0.01 to 90.0 mg/L or ppm
Temperature Resolution 0.1°C, 0.1°F
Accuracy (RDO) ±2% saturation; ±0.02 mg/L or ppm
17

Thermo Scientific™ Orion Star™ A122 Conductivity Portable Meter
SDP

Take simple conductivity, TDS and temperature measurements with this conductivity portable meter with easy operation for basic field testing.

Memory Non-volatile memory preserves log and settings
Languages English
Cell Constant 0.001 to 10cm-1
Measurement Modes Conductivity,TDS with Temperature
Temperature (Metric) Reference 20, 25°C
Channels 1
TDS Factor Range Linear (0.02 to 9.99)
Power Supply 4 AA batteries (included) or universal AC adapter (sold separately)
Battery Life 2000 hr.
Data Management Details Internal data point memory
Temperature Compensation Linear
Display Type LCD
Accuracy (Conductivity) 0.5% of reading ±1 digit
Data Points 50
Certifications/Compliance CE, TUV 3-1, FCC Class A
Temperature Probe Calibration 1 point temperature offset calibration
Inputs 8 pin MiniDIN (conductivity sensor with built-in temperature)
Accuracy (Temperature) ±0.1°C
Weight (Metric) 0.5 kg
Calibration Points (Conductivity) 1
Stability Smart Stability and Smart Averaging
Warranty 3 Year Meter
Temperature (English) Operating 41°F to 113°F (ambient)
Resolution (Conductivity) 0.01 μS minimum, auto ranging up to 3 significant digits
Range (Conductivity) 0.01 μS/cm to 200.0 mS/cm
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 Mode
Range (TDS) 1 to 19,999 mg/L
Resolution (TDS) 1 mg/L
Calibration Conductivity and temperature
Battery Type 4 x AA (included)
Relative Humidity Range 5 to 85%, non-condensing
Dimensions (L x W x H) 24 x 10 x 6.5 cm (9.5 x 3.9 x 2.6 in.)
Accuracy (TDS) 0.5% of reading ±1 digit
IP Rating IP67
Temperature Selection Manual or automatic with ATC temperature probe
Keypad Simple with highlighted measure key, scroll and shortcut keys
Model Orion Star A122 Conductivity/TDS/Temperature Portable Meter
Outputs None
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
Compatible Probes 2-cell or 4-cell conductivity sensors with built-in temperature
18
Promotions Available

METTLER TOLEDO™ S900 SevenExcellence™ Dissolved Oxygen/BOD Benchtop Meter

The S900 is a dissolved oxygen(DO)/biological oxygen demand (BOD) meter. It can be expanded with additional modules to measure pH, conductivity, ISE, salinity, TDS, and Redox/ORP. It has an intuitive touchscreen, measurement shortcuts, and can export data to a printer, Excel file, or LIMS system.

Accuracy ±1
Display Type Color TFT
Accuracy (Concentration) ±0.1mg/L from 0 to 8; ±0.2mg/L from 8 to 20; ±10% from 20 to 50
Percent Saturation Range Polarographic DO 0 to 500%
Measurement Modes Dissolved Oxygen
Temperature Range (Metric) 0°C to 50°C
Range (DO) 0.000 to 50mg/L (ppm)
Channels 3
Resolution 0.001 (display)
20
Promotions Available

Mettler Toledo™ FiveEasy™ Plus FP30 Conductivity Meters

Compact, benchtop meter provides high quality conductivity measurements with simple click of a button

Resolution (Conductivity) Automatic range
Memory 200 measurements, current calibration
Range (Conductivity) 0.01 μS/cm to 500 mS/cm
Range (TDS) 0 mg/L to 300 mg/L
Measurement Modes Conductivity
Calibration One point calibration with three predefined standards, manual cell constant input
Range (Salinity) 0 to 42 psu
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 or USB ports
Temperature Compensation Linear: 0.00%/°C to 10.00%/°C, reference temperature: 20° and 25°C
Display Type LCD
Voltage 100/240 V
Accuracy (Conductivity) ±0.5% of the measured value
Model FP30
Frequency 50/60Hz
Data Points 200
Temperature Range (English) 32°F to 212°F
Weight (English) 1.4 lb.
Resolution (Temperature) 0.1°C
Temperature Range (Metric) -5°C to +105°C
Inputs Mini-DIN
Accuracy (Temperature) 0.3°C
Weight (Metric) 0.63 kg
21
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Mettler Toledo™ FiveGo™ F3 Conductivity Meters

Portable meter provides reliable and high quality conductivity measurements with simple click of a button

Memory 200 measurements
Range (Conductivity) 0.00 μS/cm to 200 mS/cm
Languages Chinese, Chinese (TW), Croatian, Czech, Danish, Dutch, English (GB), English (US), French, German, Hungarian, Indonesian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese (BR), Russian, Slovak, Slovenian, Spanish, Swedish, Thai, Turkish, Vietnamese
Range (TDS) 0 mg/L to 200 g/L
Measurement Modes Conductivity
Calibration One point calibration with three predefined standards
Channels 1
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 Linear: 0.00%/°C to 10.00%/°C, reference temperature: 20° and 25°C
Display Type LCD
IP Rating IP67
Accuracy (Conductivity) ±0.5% of the measured value
Data Points 200
Weight (English) 0.5 lb.
Resolution (Temperature) 0.1°C
Temperature Range (Metric) 0°C to 100°C
Inputs LTW 7-pin
Accuracy (Temperature) ±0.5°C
Weight (Metric) 0.26 kg
22
Promotions Available

Mettler Toledo™ FiveEasy™ F30 Conductivity Meters

Compact, benchtop meter provides high quality conductivity measurements with simple click of a button

Resolution (Conductivity) Automatic range
Memory Current calibration
Range (Conductivity) 0.01 μS/cm to 200 mS/cm
Range (TDS) 0 mg/L to 300 mg/L
Measurement Modes Conductivity
Calibration One point calibration with three predefined standards
Range (Salinity) 0 to 42 psu
Dimensions (L x W x H) 22.7 x 14.7 x 7 cm (9 x 5.7 x 2.7 in.)
Temperature Compensation Linear: 0.00%/°C to 10.00%/°C, reference temperature: 20° and 25°C
Display Type LCD
Voltage 100/240 V
Accuracy (Conductivity) ±0.5% of the measured value
Model F30
Frequency 50/60Hz
Data Points 200
Temperature Range (English) 32°F to 212°F
Weight (English) 1.4 lb.
Resolution (Temperature) 0.1°C
Temperature Range (Metric) -5°C to +105°C
Inputs Mini-DIN
Accuracy (Temperature) 0.5°C
Weight (Metric) 0.63 kg
23

Thermo Scientific™ Orion Lab Star DO Dissolved Oxygen Bench Meters
GSA_VA SDP

Orion Lab Star DO113 dissolved oxygen bench meters measure DO as % saturation or concentration with temperature, feature large backlit display for easy viewability, and offer small footprint to save bench space. This DO meter is ideal for simplified, budget-friendly lab testing and data recording.

Temperature (Metric) Range -5.0°C to +105.0°C
Resolution (Polarographic DO) 0.1, 1 % saturation; 0.01, 0.1 mg/L or ppm
Pressure Range 400.0 to 850.0 mmHg; 0.533 to 1.133 bar
Memory Non-volatile
Measurement Modes Dissolved Oxygen (% Saturation with Temperature),Dissolved Oxygen (mg/L with Temperature),Dissolved Oxygen (ppm with Temperature)
Data Management Details Continuous, Auto-Read and Timed read modes
Display Type 5 in. backlit LCD
Data Points 500 Sets with Date and Time Stamp
Calibration Modes 100 % saturation, 0 % saturation, custom concentration value
Certifications/Compliance CE, TUV 3-1, FCC Class A
Temperature Probe Calibration 1 point temperature offset calibration
Accuracy (Temperature) ±0.3°C, ±0.5°F
Weight (Metric) 700 grams
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
Sensor Types Polarographic
Percent Saturation Range Polarographic DO 0.0 to 300.0 % saturation
Log Function Type Automatic with Auto-Read and Timed Read Modes, Manual with Continuous Read Mode
Relative Humidity Range 5 to 85%, non-condensing
Alarm Output Calibration reminder alarm
Dimensions (L x W x H) 187.2 x 155.2 x 61.7 mm, 7.37 x 6.11 x 2.43 in.
IP Rating IP54
Temperature Selection Manual or automatic with ATC temperature probe
Outputs Computer or printer (STARA-106)
Backlight Option Yes
Weight (English) 1.54 lb.
Resolution (Temperature) 0.1°C, 0.1°F
Range (Polarographic DO) 0.0 to 300.0 % saturation; 0.00 to 30.0 mg/L or ppm
24
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Mettler Toledo™ Conductivity Meter SevenDirect SD30
GREENER_CHOICE

The SevenDirect SD30 is an accurate and flexible benchtop meter for the determination of conductivity, total dissolved solids and salinity. The instrument is the replacement of the SevenCompact and is delivered with an EasyPlace sensor arm.

Range (Resistivity) 0 to 100 Mohm-cm
Resolution (Conductivity) 0.001 to 1
Memory 2000 Standard Measurements
Range (Conductivity) 0.001 μS/cm to 2000 mS/cm
Range (TDS) 0 g/L to 100 g/L
Measurement Modes Conductivity
Channels 1
Range (Salinity) 0 to 80 ppt
Dimensions (L x W x H) 195 x 205 x 65 mm
Data Management Details PC, Printer, USB Stick
Display Type Color TFT
IP Rating IP54
Accuracy (Conductivity) 0.005
Data Points 2000
Temperature Range (English) -22°F to +266°F
Weight (English) 1.9 lb.
Resolution (Temperature) 0.1°C
Temperature Range (Metric) -30°C to +130°C
Accuracy (Temperature) ±0.1°C between 0°C and 100°C
Weight (Metric) 850 g
25
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METTLER TOLEDO™ SevenExcellence™ S475 pH/Conductivity/ISE Benchtop Meter

The S475 meter performs pH, conductivity, resistivity, ion selective, salinity, TDS, Redox/ORP, and ISFET measurements. It can be expanded with an additional module to measure DO/BOD. It has an intuitive touchscreen, measurement shortcuts, and can export data to a printer, Excel, or LIMS system.

26
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METTLER TOLEDO™ S479 SevenExcellence™ pH/Conductivity/DO Benchtop Meter Kit

The S479 meter kit gives you everything you need to start measuring pH, conductivity, dissolved oxygen, BOD, resistivity, salinity, TDS, Redox/ORP, and ISFET all on one meter. It has an intuitive touchscreen, measurement shortcuts, and can export data to a printer, Excel file, or LIMS system.

27

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.

EDGE
28

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.

EDGE
29

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
30

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.

EDGE