Electrochemical Instruments
Laboratory pH meter and other electrochemical instruments represent an important part of modern laboratory equipment for precise liquid sample analysis and quality control. This group includes pH meters, conductivity meters, dissolved oxygen meters, ORP meters, TDS meters, and other instruments for reliable measurement of key parameters in research, educational, industrial, and quality control laboratories.
Electrochemistry
-
-
Portable Multi-Parameter Analyzer
CHLTEST20 Portable Chlorine Multi Parameter Tester
COLO.Science · Portable Chlorine Multi-parameter Tester
CHLTEST20 is a portable chlorine multi-parameter tester for residual chlorine, total residual chlorine and chlorine dioxide using the DPD method, LCD display, USB data transfer and IP67 protection.
CHLTEST20 · Residual chlorine 0.02–15 mg/L · Total chlorine 0.02–15 mg/L · ClO₂ 0.02–5 mg/L · IP67
SKU: PRO5375
-
Benchtop pH/Ion Meters
Viking ISE500 Benchtop pH/Ion Meter
COLO.Science · ISE500 pH Ion Meter
ISE500 pH ion meter is a VIKING-ISE500 touchscreen benchtop instrument for pH, ISE, ORP, mV and temperature measurement with ±0.002 pH accuracy, 1–6 point ISE calibration and GLP data management.
pH −2.000–20.000 · ISE 1.00E−9–9.99E9 · ±0.002 pH · 7.0″ touch · USB/RS-232 · SKU PRO2561
SKU: PRO2561 -
Portable pH/Ion Meters
VIKING-ISE310 Portable pH/Ion Meter
COLO.Science · Portable pH / Ion Meter
VIKING-ISE310 is a portable pH/ion meter for pH, ISE, pX, mV/ORP and temperature, with 4.3″ touchscreen, GLP memory, ATC/MTC, USB output and IP65 field-ready protection.
Key specs: pH −2.00 to 20.00 · ±0.01 pH · ISE 1.000×10⁻⁹ to 9.999×10⁹ · ±0.5% · 5-point calibration · IP65 · SKU PRO6090
SKU: PRO6090
-
Colorimeters
VIKING-202S Portable Colorimeter
COLO.Science · Portable Colorimeter
VIKING202S is a portable colorimeter for water quality testing with 20–500 PCU range, 0.01 PCU resolution, 7-point calibration, 5000 records and Micro USB output.
20–500 PCU · ±5% · 3″ color display · 5000 records · Micro USB · IP54
SKU: PRO2307
-
Water quality accessories
3 in 1 pH composite electrode Ag/AgCl (BNCQ9 & 4-pin aviation) 0-14pH
COLO.Science · 3 in 1 pH Composite Electrode
PRO4153 is a 3 in 1 pH composite electrode with Ag/AgCl reference, integrated temperature probe, 0–14 pH range and BNC(Q9) + 4-pin aviation connection.
pH 0–14 · Ag/AgCl · 3 M KCl · Polycarbonate · 5–60°C · BNC(Q9) + 4-pin · SKU PRO4153
SKU: PRO4153 -
Water quality accessories
pH composite electrode Ag/AgCl Φ12×120 mm BNC(Q9)
COLO.Science · pH Composite Electrode
PRO6140 is a pH composite electrode with Ag/AgCl reference, glass body, single ceramic junction, 0–14 pH range and BNC(Q9) connection.
pH 0–14 · Ag/AgCl · 3 M KCl · Glass · 5–60°C · BNC(Q9) · SKU PRO6140
SKU: PRO6140 -
Water quality accessories
pH composite electrode (Low maintenance) Premium unfilable BNC(Q9)
COLO.Science · Low Maintenance pH Composite Electrode
PRO6142 is a low maintenance pH composite electrode with premium unfillable design, open junction, Longlife reference, 0–14 pH range and BNC(Q9) connector.
pH 0–14 · Unfillable · Open Junction · Longlife Ref. · Polycarbonate · 0–80°C · BNC(Q9) · SKU PRO6142
SKU: PRO6142 -
Water quality accessories
Cleanable pH composite electrode
COLO.Science · Cleanable pH Composite Electrode
PRO6041 is a cleanable pH composite electrode with movable plastic grinding mouth, 3 M KCl fill solution, Longlife reference and BNC(Q9) connector.
pH 0–14 · 3 M KCl · Polypropylene · Longlife Ref. · 0–80°C · BNC(Q9) · SKU PRO6041
SKU: PRO6041 -
Water quality accessories
pH composite electrode (Low conductivity) for ultra-pure water
COLO.Science · Electrode for Ultra Pure Water
PRO6143 is a pH composite electrode for ultra-pure water and low-conductivity samples with Longlife reference, porous PTFE junction, epoxy body and S7 connector.
pH 0–11 · Low conductivity · Longlife Ref. · Porous PTFE · Epoxy · 0–80°C · S7 · SKU PRO6143
SKU: PRO6143 -
Water quality accessories
HF-resistant pH composite electrode for aggressive chemical media
COLO.Science · HF-Resistant pH Electrode
PRO6152 is a pH electrode HF acid resistance model with PP body, ceramic junction, Longlife reference and S7 connector.
pH 2–11 · PP body · 3 M KCl · 0–60°C · Ø12×120 mm · S7 · SKU PRO6152
SKU: PRO6152 -
Water quality accessories
pH composite electrode (HF acid titrate) (S7) 2-11 pH
COLO.Science · pH Electrode HF Acid Titrate
PRO6151 is an HF-resistant pH composite electrode for acid titration, with PP body, ceramic junction, pH 2–11 range and S7 connector.
pH 2–11 · PP body · Ceramic junction · Longlife Ref. · 3 M KCl · 0–60°C · S7 · SKU PRO6151
SKU: PRO6151 -
Water quality accessories
Composite Alkali Resistance pH Electrode (S7)
COLO.Science · Alkali Resistance pH Electrode
PRO6150 is an alkali resistance pH electrode with glass sensor, ceramic junction, Longlife reference and S7 connection.
pH 0–14 · Glass · Ceramic junction · Longlife Ref. · 0–80°C · S7 · SKU PRO6150
SKU: PRO6150
-
Water quality accessories
Fluoride (F-) Ion Selective Electrode 5~45 ℃
COLO.Science · Fluoride Ion Selective Electrode
PRO6240 is a fluoride ion selective electrode for F– measurement with compatible ISE meters, crystalline-state membrane and BNC(Q9) connector.
F– ISE · 10-1–10-6 M · Crystalline membrane · Ø12×120 mm · BNC(Q9) · SKU PRO6240
SKU: PRO6240 -
Water quality accessories
Fluoride (F-) Combined Ion Selective Electrode
COLO.Science · Combined Fluoride Ion Selective Electrode
PRO6237 is a combined fluoride ion selective electrode for F– measurement with compatible ISE meters, integrated reference function and BNC(Q9) connector.
F– combined ISE · 10-1–10-6 M · Crystalline membrane · Ø12×120 mm · BNC(Q9) · SKU PRO6237
SKU: PRO6237 -
Water quality accessories
Sodium (Na+) Combined Ion Selective Electrode
COLO.Science · Sodium Na Combined Ion Selective Electrode
PRO6236 is a sodium Na combined ion selective electrode for Na+ measurement with compatible ISE meters, integrated reference function and BNC(Q9) connector.
Na+ combined ISE · 10-1–10-6 M · Glass membrane/body · Ø12×120 mm · BNC(Q9) · SKU PRO6236
SKU: PRO6236
Electrochemical instruments for precise laboratory measurements
Electrochemical instruments play an important role in modern laboratories because they enable fast, reliable, and precise determination of key sample parameters. This group includes the pH meter, conductivity meter, dissolved oxygen meter, ORP meter, ion-selective systems, and other instruments for water and solution quality control.
These instruments are used in research laboratories, educational institutions, the pharmaceutical industry, food production, environmental protection, water treatment facilities, and many industrial processes where control of chemical and physicochemical sample properties is essential.
Primary Electrochemical Instruments
Main laboratory instruments for routine and advanced electrochemical measurement, from standard pH analysis to multi-parameter testing.
Conductivity Meters
Dissolved Oxygen
Multi-Parameter
pH & Ion Meters
Process and Water Testing Instruments
Dedicated instruments for water quality control, environmental testing, and verification of optical and chemical parameters in liquid samples.
COD Analyzers
BOD Analyzers
Colorimeters
Measurement Accessories and Probes
Compatible electrodes and sensors for precise measurement, application-specific setups, and replacement or extension of electrochemical systems.
Conductivity Electrodes
ISE Electrodes
pH Meter
pH meter is a basic electrochemical instrument for measuring the acidity and alkalinity of solutions. It is used in routine laboratory analysis, quality control, buffer preparation, water testing, food and beverage analysis, pharmaceutical formulations, and many other applications where pH value is an important process or product parameter.
Modern laboratory pH meters offer precise readings, automatic temperature compensation, multi-point calibration, and easy operation, making them suitable for both everyday work and more demanding analytical measurements.
Conductivity Meter
Conductivity meter measures the electrical conductivity of solutions and is an important instrument for assessing ion concentration in a sample. It is especially useful in the analysis of process water, ultrapure water, wastewater, chemical solutions, and various industrial baths.
Conductivity measurement is important in laboratories and production because it allows quick assessment of water purity, process stability, and compliance with defined technical or regulatory parameters.
Dissolved Oxygen Meter
Dissolved oxygen meter is used to determine the amount of oxygen present in a liquid, which is especially important in the analysis of natural and wastewater, aquaculture, aeration control, microbiological processes, and water quality testing. Monitoring dissolved oxygen helps assess biological activity, water treatment efficiency, and the overall condition of the tested system.
Laboratory and portable DO meters can be an important part of equipment in institutions and companies involved in water monitoring, environmental protection, food production, and research work.
Application in Laboratories
Electrochemical instruments are used in analytical, educational, research, and quality control laboratories for sample quality verification, solution preparation, and routine instrumental analysis.
Application in Industry
In industrial environments, pH meters, conductivity meters, and DO meters help with process control, raw material verification, production monitoring, and maintaining stable operating conditions.
Water and Solution Control
Control of pH value, conductivity, and dissolved oxygen is essential in water analysis laboratories, water treatment systems, and institutions that require stable and verifiable sample quality.
Why are electrochemical instruments important?
In many areas of laboratory work, the analysis result depends on the reliability of basic physicochemical measurements. That is why a quality laboratory pH meter, accurate conductivity meter, and stable dissolved oxygen meter form the foundation for consistent and comparable results.
Well-selected electrochemical instruments contribute to greater work efficiency, easier calibration, better quality control, and more reliable interpretation of laboratory results. For this reason, electrochemistry remains one of the key areas of laboratory equipment in modern science, industry, and process control.
Electrochemical instruments, electrodes, and laboratory support
Explore electrochemical instruments for pH, conductivity, dissolved oxygen, water quality control, and compatible electrodes. COLO.Science also supports product selection, order placement, and after-sales service guidance.