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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.

pH Meters (16)
Electrochemistry Meters (15)
Probes and Electrodes (4)
pH and Electrochemistry Meter Accessories (1)

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accumet Benchtop pH Meter

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1 – 15 of 17 results
1

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.

EDGE
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
2

Fisherbrand™ accumet™ AB200 Benchtop pH/Conductivity Meters

Provides intuitive, simple operation and high accuracy measurements in a compact, affordable meter. Fisherbrand accumet AB200 pH/conductivity meter combines the benefits of a pH meter and conductivity meter in one easy to use, reliable measurement system. The large backlit display offers great visibility in laboratory environments.

Range (Resistivity) 2 W to 20 MW
Resolution (pH) 0.1/0.01/0.001
Cell Constant 0.010 to 10.000
Range (pH) -2 to 20
Accuracy (pH) ±0.002
Range (Salinity) 0 to 80 ppt
Data Management Details Manual, timed (selectable every 3 to 3600 sec.), printer or CSV format
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
Data Points 500
Inputs BNC, ATC
Calibration Points (Conductivity) Automatic (4 points), maximum 1/range, manual (5 points), maximum 1/range
Accuracy (mV) ±0.2 mV
Warranty 3 Years
Temperature Accuracy ±0.3°C
Resolution (Resistivity) 0.01/0.1W, 0.001/0.1kW, 0.01MW
Resolution (Conductivity) 0.01/0.1μS, 0.001/0.01/0.1mS
Range (Conductivity) 0 μS to 500 mS
Accuracy (Resistivity) ± 1% full scale
Range (TDS) 0 ppm to 500 ppt (at TDS factor 1)
Resolution (TDS) 0/0.1ppm, 001/01/0.1ppt
Accuracy (TDS) ± 1% full scale
Outputs RS232 (phono plug), mini-B USB, stirrer
Frequency 50/60Hz
Calibration Points (pH) Up to 6 preset or 5 custom
Range (mV) ±2000 mV
Temperature Resolution 0.1°C
3

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.

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
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
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
4

Fisherbrand™ accumet™ Liquid-Filled Mercury-Free pH/ATC Epoxy Body Combination Electrodes, w/BNC and Mini-phone ATC connectors

TRIS compatible, rugged, and convenient

EDGE
Includes Electrode, 60mL refill solution, electrode storage bottle
Diameter (English) 0.47 in.
Type pH/ATC Combination Titration Electrode
Temperature (English) Operating 32°F to 212°F
pH Range 0 to 14
Diameter (Metric) 12 mm
Color Purple
Length (English) 4.1 in.
Material Epoxy
Junction Porous Ceramic Double
Probe ATC
For Use With (Application) General laboratory and life science applications
Internal Reference Ag/AgCl
5

Fisherbrand™ accumet™ Gel-Filled Polymer Body pH/ATC Double-Junction Combination Electrodes: Mercury-Free

Combine the convenience of a combination electrode with built-in ATC probe

Type pH/ATC Combination Electrode
Length (Metric) Cable 0.10 m
Length (Metric) 106 mm
Temperature (English) Operating 23°F to 176°F
pH Range 0 to 14
Color Purple
Length (English) 4 in.
Length (English) Cable 30 in.
Filling Solution Type Gel
Material Epoxy
Junction Double
Temperature (Metric) Operating -5°C to +80°C
Internal Reference Ag/AgCl
8

Fisherbrand™ accumet™ XL150 Benchtop pH Meters

Provide advanced pH measurements with simple operation and offer a large, vivid color touch-screen display. Fisherbrand accumet XL 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
Detection Range Multiple
Length (English) 9.68 in.
Resolution (pH) 0.001, 0.01, 0.1
Range (pH) -2 to 20
Width (Metric) 17.3 cm
Accuracy (pH) ±0.002
Accuracy Multiple
Display Type LCD
Voltage 100/240 V
Resolution (mV) 0.1 mV
Data Points 2000
Certifications/Compliance NIST, ISO, FDA, USDA, EPA
Inputs BNC, ATC
Accuracy (Temperature) ±0.3°C
Height (English) 3.89 in.
Weight (Metric) 1.13 kg
Height (Metric) 9.9 cm
Accuracy (mV) ±0.2
Warranty 3 Years
Dimensions (L x W x H) 24.6 x 17.3 x 9.9 cm (9.7 x 6.8 x 3.9 in.)
Outputs RS-232, USB-A, Mini-B USB, RJ45, stirrer port (2)
Frequency 50/60 Hz
Calibration Points (pH) Up to 6 pre-set or 5 custom
Weight (English) 2.5 lb.
Resolution (Temperature) 0.1°C
Range (mV) ±2000
Resolution Multiple
9

Fisherbrand™ accumet™ AB150 Benchtop pH Meters

Provide intuitive, simple operation and high accuracy measurements in a compact, affordable meter. Fisherbrand accumet AB150 pH benchtop meters have large backlit display which offers great visibility in laboratory environments. The accumet AB150 pH meter is an industry favorite for when reliability and consistency in measurements matter.

Accuracy (mV) ±0.2
Warranty 3 Years
Resolution (pH) 0.001, 0.01, 0.1
Range (pH) -2 to 20
Accuracy (pH) ±0.002
Data Management Details Manual, Timed (selectable every 3 to 3600 sec.), Printer or CSV Format
Display Type LCD
Voltage 100/240 V
Resolution (mV) 0.1 mV
Outputs RS-232 (phono plug), mini-B USB, stirrer
Frequency 50/60 Hz
Data Points 500
Calibration Points (pH) Up to 6 pre-set or 5 custom
Resolution (Temperature) 0.1°C
Range (mV) ±2000
Inputs BNC, ATC
Accuracy (Temperature) ±0.3°C
10

Fisherbrand™ accumet™ AE150 Benchtop pH Meter

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

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) 0.0°C to 100.0°C
Range (mV) ±1999
Inputs BNC, 2.5 mm phono plug, reference pin tip, ground
11

Fisherbrand™ accumet™ AB250 Benchtop pH/ISE Meters

Provides intuitive, simple operation and high accuracy measurements in a compact, affordable meter. Fisherbrand accumet AB250 pH/ISE meter provides flexible measurements of pH or ion concentration using an ion selective electrode (ISE) in one easy to use, reliable measurement system.

Accuracy (mV) ±0.2 mV
Accuracy (ISE) 0.5% full scale (monovalent ion), 1% full scale (divalent ion)
Warranty 3 Years
Temperature Accuracy ±0.3°C
Calibration Points (ISE) 2 to 6 points from one of following group, 0.001, 0.01, 0.1, 1, 10, 100, 0.01, 0.1, 1, 10, 100, 1000
Resolution (pH) 0.1/0.01/0.001
Range (pH) -2 to 20
Resolution (ISE) 0.001/0.01/0.1/1 (automatic)
Accuracy (pH) ±0.002
Range (ISE) 0.001 to 19999 (±2000)
Data Management Details Manual, timed (selectable every 3 to 3600 sec.), printer or CSV format
Display Type LCD
Voltage 100/240 V
Resolution (mV) 0.1mV
Outputs RS232 (phono plug), mini-B USB, stirrer
Frequency 50/60Hz
Data Points 500
Calibration Points (pH) Up to 6 preset or 5 custom
Range (mV) ±2000 mV
Inputs BNC, ATC
Temperature Resolution 0.1°C
12

Fisherbrand™ accumet™ XL200 Benchtop pH/Conductivity Meters

Provide advanced measurements with simple operation and offer a large, vivid color touch-screen display that allows for dynamic functionality. Fisherbrand accumet XL200 pH/Conductivity 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.
Resolution (pH) 0.1/0.01/0.001
Cell Constant 0.01 to 10
Range (pH) -2 to 20
Width (Metric) 17.3 cm
Accuracy (pH) ±0.002
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
Data Points 2000
Certifications/Compliance NIST, ISO, FDA, USDA, EPA
Inputs BNC, 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
Warranty 3 Years
Temperature Accuracy ±0.2°C
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
Temperature Resolution 0.1°C
Resolution Multiple
13

Fisherbrand™ accumet™ XL250 Benchtop pH/ISE Dual Channel Meters

Provide advanced pH and ion measurements with simple operation and offer a large, vivid color touch-screen display. Fisherbrand accumet XL250 pH/ISE dual channel 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
Detection Range Multiple
Length (English) 9.68 in.
Resolution (pH) 0.1/0.01/0.001
Range (pH) -2 to 20
Width (Metric) 17.3 cm
Resolution (ISE) 2/3/4 Digits
Accuracy (pH) ±0.002
Range (ISE) ±2000 mV
Accuracy Multiple
Data Management Details 3 to 86400 sec.
Display Type LCD
Voltage 100/240 V
Resolution (mV) 0.1mV
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.
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 ±0.3°C
Calibration Points (ISE) 2 to 6
Dimensions (L x W x H) 24.6 x 17.3 x 9.9cm (9.7 x 6.8 x 3.9 in.)
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
Temperature Resolution 0.1°C
Resolution Multiple
14

Fisherbrand™ accumet™ XL250 Benchtop pH/ISE Dual Channel Meter - PROMO

Provide advanced pH and ion measurements with simple operation and offer a large, vivid color touch-screen display. Fisherbrand accumet XL250 pH/ISE dual channel benchtop meters offer advanced features with simple operation to help ensure your measurements are reliable and your laboratory processes are efficient.

15

Fisherbrand™ accumet™ XL500 Benchtop Dual pH/ISE and Conductivity Meters

Provide advanced measurements with simple operation and offer a large, vivid color touch-screen display that allows for dynamic functionality. Fisherbrand accumet XL500 dual pH/ISE/conductivity 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.
Resolution (pH) 0.1/0.01/0.001
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
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 ±0.3°C
Calibration Points (ISE) 2 to 6
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
Temperature Resolution 0.1°C
Resolution Multiple