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Electrochemistry Meters

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 (225)
Conductivity Meters (95)
Biological Oxygen Demand Meters (44)
Dissolved Oxygen Meters (41)
ISE Concentration Meters (10)
Chlorine Meters (4)
Oxidation Reduction Potential Meters (2)

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1 – 15 of 255 results
1

Hanna Instruments™ Waterproof pH/Conductivity/TDS Tester

Makes measuring pH quick and easy. Hanna Instruments™ Waterproof pH/Conductivity/TDS Tester is lightweight and waterproof offering high accuracy pH, EC/TDS and temperature measurements in a single handheld unit.

2

Thermo Scientific™ Elite PCTS pH / Conductivity / TDS / Salinity Pocket Testers and Replacement Sensors

Flexible on-the-go pH, conductivity, TDS, salinity and temperature testing using durable Elite PCTS pocket testers for a variety of applications including agriculture, aquaculture, hydroponics and more!

Promotions are available
Salinity Measurement Modes Per practical salinity curve
Temperature Accuracy ±0.6°C, ±1.0°F for 0.0 to 50.0°C; ±1.1°C, ±1.9°F for 50.1 to 60.0°C
Resolution (Conductivity) 0.1 μS/cm for 0.0 to 200.0 μS/cm; 1 μS/cm for200 to 2000 μS/cm; 0.01 mS/cm for 2.00 to 20.00 mS/cm
Range (Conductivity) 0.00 to 20.00 mS/cm
Resolution (pH) 0.01
Range (TDS) 0.00 to 10.00 ppt
Measurement Modes pH,Conductivity,TDS,Salinity,Temperature
Resolution (TDS) 0.1 ppm for 0.0 to 100.0 ppm; 1 ppm for 100 to 1000 ppm; 0.01 ppt for 0.10 to 10.00 ppt
Range (pH) -1.00 to 15.00
TDS Factor Range 0.40 to 1.00 (selectable)
Accuracy (pH) ±0.02
Relative Humidity Range 5 to 85 %, non-condensing
Range (Salinity) 0.00 to 10.00 ppt
Temperature Compensation Yes
Accuracy (TDS) ± 1% full scale
Accuracy (Salinity) ± 1% full scale
Resolution (Salinity) 0.10 ppt
Accuracy (Conductivity) ± 1% full scale
Temperature Range (English) 32.0°F to 140.0°F
Calibration Points (pH) 1 to 3
Calibration Modes pH, conductivity, TDS, salinity, temperature
Temperature Probe Calibration 1 point
Temperature (Metric) Operating 5°C to 45°C (ambient)
Temperature Resolution 0.1°C, 0.1°F
Calibration Points (Conductivity) 1 to 3
3

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!

Promotions are available
EDGE
4

Thermo Scientific™ Eutech™ ECTestr11+ Multi Range Conductivity Tester

Get quick and accurate conductivity measurements in the field, laboratories, and schools.

Promotions are available
5

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.

Promotions are available
6

Thermo Scientific™ Orion Star™ A214 pH/ISE Benchtop Meter
BIOPHARMA

Reliably measure pH, ion concentration, mV, ORP and temperature with our pH/ISE benchtop meter for advanced lab analysis and interfacing.

Promotions are available
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
Resolution (pH) 0.1/0.01/0.001
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 Universal AC adapter (included) or 4 AA batteries (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 2000 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 (sold separately)
Relative Humidity Range 5 to 85 %, non-condensing
Dimensions (L x W x H) 24cm x 18cm x 11cm (9.5 in. x 7.1 in. x 4.3 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) -2.000 to 20.000
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), stirrer input (stirrer probe)
Weight (Metric) 0.9 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 (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 IP 54
Model Orion Star A214 pH/ISE/mV/RmV/ORP/Temperature Benchtop Meter
Weight (English) 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
7

Eutech Expert pH Pocket Tester

Perform on-the-go, fuss-free measurements for applications such as water treatment, environmental monitoring, education, hydroponics, agriculture, aquaculture, food & beverage and many more!

Promotions are available
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.

Promotions are available
9

Thermo Scientific™ Orion™ Dual Star™ pH, ISE, mV, ORP and Temperature Dual Channel Benchtop Meter
BIOPHARMA

Accurately monitor pH, ion concentration, mV, ORP and temperature on two channels with our pH/ISE benchtop meter for advanced lab analysis.

Promotions are available
Temperature (Metric) Range -5.0°C to +105.0°C
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
Resolution (pH) 0.1, 0.01, 0.001
Languages English, Spanish, French, Italian and German
Measurement Modes pH,mV,Relative mV,ORP,Ion Concentration (ISE) with Temperature
Range (pH) -2.000 to 19.999
Resolution (ISE) 0.0001 minimum, 1 to 3 significant digits (user selectable)
Channels 2
Accuracy (pH) ±0.002
Power Supply Universal AC adapter (included)
Range (ISE) 0.0001 to 19,900 in ppm, M, mg/L, % or unit-less
Data Management Details Transfer single, range or all data points to printer or computer
Display Type Graphic LCD with Backlight
Resolution (mV) 0.1 mV
Data Points 1000 with date and time stamp
Temperature Probe Calibration 1 point temperature offset calibration
Certifications/Compliance CE, TUV 3-1, FCC Class A
Inputs Two BNC (pH, ORP or ion selective electrode), two pin-tip (reference electrode), two 8 pin MiniDIN (ATC temperature probe), stirrer input (stirrer probe)
Accuracy (Temperature) ±0.1°C
Weight (Metric) 0.9 kg
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
Electrical Requirements 90 to 260 VAC 50/60 Hz
Warranty 3 Year Meter Warranty
Stability Smart Stability and Smart Averaging
Calibration Points (ISE) 2 to 6
Temperature (English) Operating 41°F to 113°F (ambient)
Isopotential Point 7.000 pH (adjustable), 1.000 ISE (adjustable)
AC Adapter Universal 50 to 60 Hz, 100 to 240 VAC power adapter (Cat. No. 1010003)
Log Function Type Automatic data logging with Auto-Read, On Ready, At Timed Intervals, Value Change In Measurement and
Calibration pH with calibration editing option, ion concentration (ISE) with calibration editing option, relativ
Relative Humidity Range 5 to 85 %, non-condensing
Calibration Points 1 point relative mV (RmV) mode, 1 point ORP mode
Alarm Output High/low limit alarm
Dimensions (L x W x H) 24 x 17 x 9 cm (9.5 x 6.7 x 3.5 in.)
Temperature Selection Manual or automatic with ATC temperature probe
Keypad Numeric with menu-specific function keys and dual purpose scroll/shortcut keys
Model Orion Dual Star pH/ISE/mV/RmV/ORP/Temperature Dual Channel Benchtop Meter
Outputs USB, RS232
Range (Relative mV) ±1999.9 mV
Calibration Points (pH) 1 to 6
Backlight Option Yes, adjustable
Weight (English) 2 lb.
Resolution (Temperature) 0.1°C, 0.1°F
Temperature (Metric) Operating 5°C to 45°C (ambient)
Range (mV) ±1999.9 mV
Range (ORP) ±1999.9 mV
Methods 10 per channel with password protection
10

Thermo Eutech™ COND 6+ Conductivity Meter

COND 6+ Conductivity Meter, Rubber Armour/Stand, electrode CONSEN91B

Promotions are available
11

Thermo Scientific™ Eutech™ ORPTestr10 ORP Meter

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

Promotions are available
12

Thermo Scientific™ Eutech COND 6+ Handheld Meter Kit with Electrode

Lightweight, economical, and efficient handheld meters

Promotions are available
13

Thermo Scientific™ Orion Star™ A212 Conductivity Benchtop Meter
BIOPHARMA

Reliably measure conductivity, TDS, salinity, resistivity and temperature with this conductivity benchtop meter for advanced lab analysis.

Promotions are available
Salinity Measurement Modes Practical salinity (psu) or natural sea water (ppt)
Range (Resistivity) 2 ohm to 100.0 megohm
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 Conductivity,TDS,Salinity,Resistivity with Temperature
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 Graphic LCD with Backlight
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
Stability Selectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
Warranty 3 Year Meter
Resolution (Conductivity) 0.001 μS minimum, auto ranging up to 4 significant digits
Range (Conductivity) 0.001 μS/cm to 3000 mS/cm
Log Function Type Automatic data logging with Auto-Read and Timed measure modes; manual data logging with Continuous m
Battery Type 4 x AA (sold separately)
Relative Humidity Range 5 to 85%, non-condensing
Dimensions (L x W x H) 24 x 18 x 11 cm (9.5 x 7.1 x 4.3 in.)
Accuracy (TDS) 0.5% of reading ±1 digit
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
Backlight Option Yes, selectable
Compatible Probes 2-cell or 4-cell conductivity sensors with built-in temperature
Methods 10 per channel with password protection
Cell Constant 0.001 to 199.9cm-1
Temperature (Metric) Reference 5, 10, 15, 20, 25°C
Channels 1
TDS Factor Range Linear (0.02 to 9.99)
Range (Salinity) 0.06 to 80.00 psu, 0.05 to 42.00 ppt
Temperature Compensation Linear, nLFn (non-linear ultra pure water), nLFu (non-linear ultra pure degassed water), EP (off wit
Accuracy (Salinity) 0.5% of reading ±1 digit
Resolution (Salinity) 0.01 psu or 0.01 ppt minimum, auto ranging
Accuracy (Conductivity) 0.5% of reading ±1 digit > 3 μS; 0.5% of reading ±0.01 μS ≤ 3 μS
Inputs 8 pin MiniDIN (conductivity sensor with built-in temperature), stirrer input (stirrer probe)
Accuracy (Temperature) ±0.1°C
Weight (Metric) 0.9 kg
Calibration Points (Conductivity) 5
Temperature (English) Operating 41°F to 113°F (ambient)
Resolution (Resistivity) 1 ohm or 0.1 megohm, auto ranging
Accuracy (Resistivity) 0.5% of reading ±1 digit
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. 1010003)
Resolution (TDS) 0.001 ppm minimum, auto ranging up to 4 significant digits
Calibration Conductivity with calibration editing option and temperature
Alarm Output High/low limit alarm, calibration due alarm
IP Rating IP54
Model Orion Star A212 Conductivity/TDS/Salinity/Resistivity/Temperature Benchtop Meter
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
14

Thermo Scientific™ Orion Star™ A321 pH Portable Meter
BIOPHARMA

Accurately monitor pH, mV, ORP and temperature with our waterproof, portable pH meter for high performance in challenging field locations.

Promotions are available
Memory Non-volatile memory preserves data log, calibration log and meter settings
Resolution (pH) 0.1/0.01/0.001
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 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
Inputs BNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (ATC temperature probe)
Weight (Metric) 0.5 kg
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
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)
Log Function Type Automatic data logging with Auto-Read and Timed measure modes; manual data logging with Continuous m
Calibration pH with calibration editing option, relative mV (RmV), ORP and temperature
Battery Type 4 x AA
Relative Humidity Range 5 to 85%, non-condensing
Calibration Points 1 to 5
Alarm Output High/low limit alarm, calibration due alarm
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
IP Rating IP 67
Keypad Comprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
Model Orion Star A321 pH/mV/RmV/ORP/Temperature Portable Meter
Outputs USB, RS-232
Temperature Range (English) 22.0°F to 221.0° F
Range (Relative mV) ±2000.0 mV
Backlight Option Yes, selectable
Weight (English) 1.2 lb.
Temperature (Metric) Operating 5°C to 45°C (ambient)
Temperature Range (Metric) -5.0°C to +105.0°C
Range (mV) ±2000.0 mV
Range (ORP) ±2000.0 mV
Methods 10 per channel with password protection
Temperature Resolution 0.1°C, 0.1°F
15

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.

Promotions are available