accessibility menu, dialog, popup

UserName

pH and Electrochemistry

Instruments and other methods to measure pH, conductivity, specific ions, dissolved oxygen, and other parameters; may be handheld or benchtop and manual or electronic (analog or digital); includes pH indicator papers, electrodes, and other probes.

pH and electrochemistry meters and related products are used to assess acidity and alkalinity, conductivity, specific ion concentrations, and dissolved oxygen in water, wastewater, and other solutions. Electrochemistry meters may measure a single parameter (like pH) or they may be multiparameter meters, capable of performing a combination of tests (pH plus conductivity, for example).

Electrochemistry meters are used with various probes and electrodes designed for specific purposes or types of solutions. Electrodes with epoxy bodies are useful for testing food, beverages, and other materials where broken glass could be a problem. Other electrodes are made to withstand higher than usual impact; for use with solutions that contain large particulates; and for compatibility with biological buffers.

Electrodes must be carefully stored and maintained for optimal performance. It’s important to select the right storage bottles and electrode filling, cleaning, rinsing, and storage accessories.

Electrochemistry meters also require regular calibration and maintenance. Standard and certified pH buffers as well as conductivity and specific ion standards are available. Other accessories include electrode supports, bulb guards, cables, connectors, and adapters.

Indicator paper and test strips are another simple, portable, and qualitative way to quickly determine pH and other analytes. The paper or strips contain chemical indicators that produce color reactions. A comparison chart (included) helps to interpret the results. Available in various pH ranges, these are sometimes called “litmus” paper.

Probes and Electrodes (24)
Electrochemistry Meters (4)
pH Paper and other Test Strips (2)
Benchtop Titrators (1)

Filtered Search Results

Products from some of our suppliers do not display in filtered search results. Please clear all filters to see these products.

Narrow Results

Selected Filters

Clear all

Keyword Search

ammonia

Narrow Results

Narrow Results

No results found within this category. Try removing some selected filters and try again.

category

special offers

  • (1)
  • (3)

brands

  • (5)
  • (2)
  • (2)
  • (1)
  • (2)
  • (18)
  • (1)

special programs

  • (2)
  • (1)
  • (1)

Type

  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
  • (1)
Show all

For Use With (Equipment)

  • (1)
  • (2)
  • (2)
  • (1)
  • (2)
  • (3)
  • (1)
Show all

Temperature (Metric) Operating

  • (6)
  • (1)
  • (2)

Connector Types

  • (1)
  • (4)
  • (1)
  • (1)
  • (1)

Material

  • (6)
  • (1)
  • (1)

Channels

  • (2)
  • (2)

Measurement Modes

  • (1)
  • (1)
  • (1)
  • (3)
  • (1)
  • (2)
  • (1)
Show all

Range (mV)

  • (1)
  • (1)
  • (2)

Range (pH)

  • (4)

Resolution (ISE)

  • (1)
  • (2)
  • (1)
1 – 15 of 21 results
2
Promotions Available

Thermo Scientific™ Orion™ High Performance Ammonia Combination Ion Selective Electrode

Obtain quick, simple, accurate and economical results at low level ammonia measurements.

4

Mettler Toledo™ Gas Sensitive Electrode Membrane Kit: Ammonia

Quick and easy determination of concentration and activity of ammonia.

5

Thermo Scientific™ Orion™ ISE Ionic Strength Adjustors (ISA) and Special Reagents

Take more accurate and reproducible ISE measurements with Thermo Scientific™ Orion™ ISE Ionic Strength Adjustors (ISA) and Special Reagents.

For Use With (Application) Ionic strength adjustors used for analysis with ion selective electrodes and special reagents used with some ion selective electrodes
6
Promotions Available

Thermo Scientific™ Orion™ ISE Filling Solutions

Enhance the performance and extend the life of your ion selective electrodes with these ISE filling solutions.

Type ISE Filling Solution
7

Thermo Scientific™ Orion™ Gas-Sensing ISE membranes

Choose from loose or preassembled membranes for ease of use with Thermo Scientific™ Orion™ Gas-Sensing ISE membranes.

Type Gas-Sensing ISE Membrane
9

Thermo Scientific™ Orion™ Ammonium Ion Sensing Module

Get quick, reliable and accurate measurements of dissolved ammonium in aqueous solutions.

10

Mettler Toledo™ perfectION™ Gas-Sensing Combination Electrodes

Allows quick and easy determination of concentration and activity of dissolved gases. Mettler Toledo perfectION Gas-Sensing Combination Electrodes are resistant to any known organic chemical present whose temperature is less than 392°F (200°C).

11
Promotions Available

Thermo Scientific™ Orion™ Pro Star PI214 pH/ion Bench Meter

Designed to provide accurate and reliable pH, ORP, ion concentration and temperature analysis, the Thermo Scientific™ Orion™ Pro Star PI214 bench meter is well suited for laboratories that desire a modern meter with advance performance.

Temperature (Metric) Range -30.0°C to +130.0°C
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 with mV and Temperature,ORP with mV and Temperature,Ion Concentration (ISE) with Temperature
Range (pH) -2 to 20
Resolution (ISE) 0.0001 minimum, 1 to 5 digits
Channels 1
Accuracy (pH) ±0.002 pH
Range (ISE) 0.0001 to 19999
Display Type 7-in. High-resolution Color Graphic LCD
Resolution (mV) 0.1 mV
Data Points 10,000 with Date and Time Stamp
Temperature Probe Calibration 1 or 2 point temperature offset calibration
Certifications/Compliance CE, TUV 3-1, FCC Class A
Inputs BNC for pH, ORP or ion selective electrode (ISE), 8-pin MiniDIN for ATC, pin-tip for reference
Accuracy (Temperature) ±0.3°C, ±0.5°F
Weight (Metric) 1.00 kg
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
Calibration Points (ISE) Up to 5
Isopotential Point 7.000 pH; 1.000 ion concentration
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
Log Function Type Automatic with Auto-Read and Timed Read Modes, Manual with Continuous Read Mode
Calibration pH, ORP, Ion Concentration, Temperature
Calibration Points 1 to 5 (pH), 1 (ORP), 1 to 5 (ion), 1 to 2 (temperature)
Alarm Output Calibration reminder alarm, high and low limit alarm per parameter
Dimensions (L x W x H) 218.9 x 153.2 x 91.33 mm; 8.62 x 6.03 x 3.60 in.
Temperature Selection Automatic with ATC temperature sensor, ambient or manual
Keypad Capacitive touchscreen user interface
Model PI214
Outputs USB flash drive, computer or printer (STARA-106)
Range (Relative mV) -2000 to 2000 mV
Calibration Points (pH) 1 to 5 points
Backlight Option Yes
Weight (English) 2.20 lbs.
Resolution (Temperature) 0.1°C, 0.1°F
Range (mV) -2000 to 2000 mV
Range (ORP) -2000 to 2000 mV
Methods 10
12

Fisherbrand™ accumet™ Gas-Sensing Combination ISEs

For ammonia and carbon dioxide analyses; tough, chemical-resistant body; permanently bonded membrane/cap assembly—no difficult user assembly required

Resistance <300megohm
Diameter (English) Body 0.5 in.
Type Combination ISE
Temperature (Metric) Range 0 to 50°C
Length (Metric) 102 mm
Applications Determines Ammonia and Ammonium ion concentration in sewage effluent, boiler water, industrial wastes, stack gases, food, fertilizers
Temperature (English) Operating 32° to 122°F
Length (English) 4.01 in.
Material Epoxy
Certifications/Compliance ASTM, EPA
Temperature (Metric) Operating 0°C to 50°C
Diameter (Metric) Body 13 mm
13
Promotions Available

Thermo Scientific™ Orion™ Pro Star PI217 Dual Channel pH/Ion Bench Meter

Designed to provide accurate and reliable pH, ORP, ion concentration and temperature analysis, the Thermo Scientific™ Orion™ Pro Star PI217 dual channel bench meter is well suited for laboratories that desire a modern meter with advance performance.

Temperature (Metric) Range -30.0°C to +130.0°C
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 with mV and Temperature,Ion Concentration (ISE) with Temperature
Range (pH) -2 to 20
Resolution (ISE) 0.0001 minimum, 1 to 5 digits
Channels 2
Accuracy (pH) ±0.002 pH
Range (ISE) 0.0001 to 19999
Display Type 7-in. High-resolution Color Graphic LCD
Resolution (mV) 0.1 mV
Data Points 10,000 with Date and Time Stamp
Temperature Probe Calibration 1 or 2 point temperature offset calibration
Certifications/Compliance CE, TUV 3-1, FCC Class A
Inputs Channel 1: BNC for pH, ORP or ISE, 8-pin MiniDIN for ATC, pin-tip for reference; Channel 2: BNC for pH, ORP or ISE, 8-pin MiniDIN for ATC, pin-tip for reference
Accuracy (Temperature) ±0.3°C, ±0.5°F
Weight (Metric) 1.00 kg
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
Calibration Points (ISE) Up to 5
Isopotential Point 7.000 pH; 1.000 ion concentration
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
Log Function Type Automatic with Auto-Read and Timed Read Modes, Manual with Continuous Read Mode
Calibration pH, ORP, Ion Concentration, Temperature
Calibration Points 1 to 5 (pH), 1 (ORP), 1 to 5 (ion), 1 to 2 (temperature)
Alarm Output Calibration reminder alarm, high and low limit alarm per parameter
Dimensions (L x W x H) 218.9 x 153.2 x 91.33 mm; 8.62 x 6.03 x 3.60 in.
Temperature Selection Automatic with ATC temperature sensor, ambient or manual
Keypad Capacitive touchscreen user interface
Model PI217
Outputs USB flash drive, computer or printer (STARA-106)
Range (Relative mV) -2000 to 2000 mV
Calibration Points (pH) 1 to 5 points
Backlight Option Yes
Weight (English) 2.20 lbs.
Resolution (Temperature) 0.1°C, 0.1°F
Range (mV) -2000 to 2000 mV
Range (ORP) -2000 to 2000 mV
Methods 10 per channel (20 total)
14

WTW™ Accessory Box
GREENER_CHOICE

15
Promotions Available

Thermo Scientific™ Orion Star T930 Ion Titrator and Kits
BIOPHARMA

Benefit from the integration of our core electrochemistry technology with a state-of-the-art dispensing system to create an automated redox titrator, a modern, simplified automated system designed to help make performing titrations easier, more reliable and more reproducible than manual titrations.

EDGE
Titration Technique Equivalence point or preset endpoint
Memory Non-volatile memory preserves data logs and settings
Advanced ISE Functions Multiple known addition (MKA); automated calibration and calculation of sample concentration by adding aliquots of standard to sample using the burette
Languages Chinese, English, French, German, Italian, Japanese, Korean, Portuguese and Spanish
Resolution (ISE) 0.0001 minimum, 1 to 4 significant digits (user selectable)
Cycles Per Titration Run 1 to 5 cycles, option to exclude cycle results from average results and RSD calculations
Data Management Details Data log export as CSV or PDF file, short or long format
Display Type 5.7 in. color capacitive touchscreen, 640 x 480 resolution
Functions Available Sample titration, titrant standardization, calibration and direct measure
Resolution (mV) 0.1 mV
Data Points 100 data sets each: sample titration, titrant standardization, calibration and direct measure
Temperature Probe Calibration Optional 1 point offset calibration
Certifications/Compliance CE, TUV 3-in-1, FCC, EN/EIC61326-1, IEC 61010
Probe Type Ion selective electrode (ISE), reference half-cell electrode, ATC temperature probe, stirrer probe
Accuracy (mV) ±0.2 mV
Accuracy (ISE) ±0.2 mV or ±0.05% of reading, whichever is greater
Titrant Determination Standardization titration or manual concentration input
Warranty 1 year replacement warranty
Calibration Points (ISE) 1 to 5
Relative Humidity Range 5 to 85%, non-condensing
Dimensions (L x W x H) 10 x 16 x 14 in. (25.4 x 40.6 x 35.6 cm)
Temperature Selection Manual or automatic
Precision 0.5% RSD, dependent on environment and handling conditions
Outputs 3 USB ports for printer, USB flash drive and computer software connections
Backlight Option Yes, adjustable
Range (mV) -2000.0 to +2000.0 mV
Methods Up to 10 methods with optional password protection; import/export methods via USB flash drive
Resolution Burette drive offers advanced micro-step technology that provides 25,600 micro-steps per motor revolution for smooth and precise burette positioning (over 2 million micro-steps over the full burette stroke range)
Titration Process Control Routine, quick, careful or user defined
Time and Date Yes, with nonvolatile battery backup
Updateable Firmware Yes, using USB flash drive
Titration Types Direct or back titration
Channels 1
Range (ISE) 0.0001 to 19990
Titration Setup Wizard Yes, using Start a New Titration workflow
Stirrer Probe Speeds 5 user selectable speeds (250 to 3700 RPM)
Burette Sizes 10 mL, 20 mL (included) or 50 mL
Burette Functions Automatic rinse cycles for flushing and discrete dispense volume with continuous option; Exceeds acc
Inputs BNC (ion selective electrode), pin-tip (reference electrode), 8 pin MiniDIN (ATC temperature probe), stirrer input (stirrer probe)
Accuracy (Temperature) ±0.2 °C
Equivalence Points 1 to 2
Electrical Requirements 100-240V, 50/60 Hz
Temperature (English) Operating 41°F to 104°F
Preset Endpoints 1 to 3
Material ABS Plastic
Calibration Ion concentration (ISE) and temperature
Alarm Output Notifications for Titration Cycle Complete, Maximum Titrant Volume, Data Log Full, Calibration Due, Maintenance Reminder
IP Rating IP51
Model Orion Star T930
Sample ID Auto-incremental, manual or off
Resolution (Temperature) 0.1 °C
Temperature Range (Metric) -5.0°C to +100.0°C
Temperature (Metric) Operating 5°C to 40°C
Blank Options Fixed value or variable value using titration