AELAB pH, Conductivity, TDS, Dissolved Oxygen and Multi-Parameter Water Quality Meters
AELAB supplies a comprehensive range of water quality measurement instruments for laboratory analysis, environmental monitoring, drinking water testing, wastewater treatment, aquaculture, industrial water control, educational laboratories and field inspection.
The available range includes benchtop meters, portable meters, pocket testers and online measurement systems for pH, ORP, conductivity, TDS, salinity, dissolved oxygen, water hardness and multiple electrochemical parameters.
Users can compare AELAB water testing instruments according to the required measurement parameters, accuracy, electrode configuration, portability, data storage, calibration method, sample conditions and laboratory workflow.
Available Water Quality Meter Types
| Meter Type |
Typical Measurement and Use |
| pH Meter |
Measures the acidity or alkalinity of water, chemical solutions, beverages, environmental samples and laboratory preparations. |
| ORP Meter |
Measures oxidation-reduction potential for water treatment, disinfection control, aquaculture and process monitoring. |
| Conductivity Meter |
Evaluates the electrical conductivity of water to estimate the concentration of dissolved ionic substances. |
| TDS Meter |
Determines total dissolved solids in drinking water, wastewater, purified water, industrial water and environmental samples. |
| Salinity Meter |
Measures salt concentration in seawater, aquaculture systems, brackish water, food processing and environmental samples. |
| Dissolved Oxygen Meter |
Measures dissolved oxygen concentration for wastewater treatment, aquaculture, surface water analysis and biological processes. |
| Water Hardness Meter |
Supports the evaluation of hardness-related parameters in drinking water, process water and water treatment applications. |
| Multi-Parameter Meter |
Combines several measurements such as pH, ORP, conductivity, TDS, salinity, dissolved oxygen and temperature in one system. |
Available Instrument Configurations
Benchtop Meters
Designed for regular laboratory testing where stable measurement, convenient calibration and comprehensive parameter control are required.
Portable Meters
Suitable for field inspection, environmental sampling, industrial facilities and measurements performed away from the laboratory.
Pocket Testers
Compact instruments intended for rapid routine checks, mobile testing and convenient on-site water quality assessment.
Online Measurement Systems
Used for continuous or process-related monitoring where water quality parameters must be observed over time.

Typical Applications
- Drinking water quality evaluation
- Municipal and industrial wastewater testing
- Environmental water monitoring and field sampling
- Aquaculture, fish farming and hydroponic systems
- Laboratory solution preparation and chemical analysis
- Food and beverage production quality control
- Pharmaceutical and purified water monitoring
- Cooling water, boiler water and process water testing
- Swimming pool and recreational water inspection
- University, educational and scientific research
- Agricultural irrigation water analysis
- Water treatment and disinfection process control
Common Water Quality Parameters
| Parameter |
What It Indicates |
| pH |
Indicates whether a sample is acidic, neutral or alkaline. |
| ORP |
Indicates the oxidation or reduction characteristics of a water sample or treatment process. |
| Conductivity |
Shows the ability of water to conduct electrical current based mainly on dissolved ionic substances. |
| TDS |
Provides an estimate of the total amount of dissolved substances in water. |
| Salinity |
Represents the concentration of dissolved salts in a sample. |
| Dissolved Oxygen |
Shows the amount of oxygen available in water for aquatic organisms and biological processes. |
| Temperature |
Supports temperature compensation and helps interpret electrochemical measurement results. |
How to Select the Right Water Quality Meter
Selecting a water quality meter should begin with the parameters that must be measured. Users should also evaluate the sample type, required accuracy, measurement range, testing location, electrode design, calibration procedure and data management requirements.
| Selection Factor |
Questions to Consider |
| Required Parameters |
Do you need pH only, or a combination of pH, ORP, conductivity, TDS, salinity and dissolved oxygen? |
| Measurement Location |
Will testing be carried out in a laboratory, production area, treatment plant or outdoor sampling location? |
| Measurement Range |
Does the expected sample concentration fall within the meter and electrode measurement range? |
| Accuracy and Resolution |
What level of accuracy and display resolution is required by the laboratory procedure? |
| Electrode Type |
Does the sample require a standard, refillable, low-maintenance, specialized or replaceable electrode? |
| Calibration |
How many calibration points are required, and should the meter provide automatic buffer recognition? |
| Temperature Compensation |
Is automatic temperature compensation required for changing sample or environmental conditions? |
| Data Storage |
Are internal memory, USB export, computer connection or printed test records required? |
| Field Protection |
Does the instrument need a rugged, portable or water-resistant design for outdoor use? |
| Number of Samples |
Will the instrument be used occasionally, routinely or continuously for a large number of samples? |

AELAB Water Quality Instrument Families
AELAB Benchtop Electrochemical Meter Series
Developed for routine laboratory measurement of pH, ORP, conductivity, TDS, salinity, dissolved oxygen and other electrochemical parameters, depending on the selected configuration.
AELAB Portable Water Quality Meter Series
Designed for field inspection, environmental monitoring, industrial facilities and mobile measurements where portability and practical operation are important.
AELAB Pocket Water Tester Series
Compact testing solutions for rapid checks of selected water quality parameters in laboratories, production areas, aquaculture systems and field applications.
AELAB Dissolved Oxygen Meter Series
Suitable for evaluating dissolved oxygen in wastewater treatment, surface water, aquaculture, biological research and industrial water systems.
AELAB Conductivity, TDS and Salinity Meter Series
Used for the analysis of ionic concentration, dissolved solids and salt content in drinking water, purified water, process water and environmental samples.
AELAB Multi-Parameter Water Quality Meter Series
Combines multiple electrochemical measurements in one platform to reduce the need for separate instruments and simplify routine water quality analysis.
View the complete AELAB pH, conductivity, TDS, DO and multi-parameter meter range
Why Choose AELAB Water Quality Meters?
- Benchtop, portable, pocket and online configurations
- Solutions for single-parameter and multi-parameter testing
- Measurement options for pH, ORP, conductivity, TDS, salinity and dissolved oxygen
- Different accuracy levels and measurement ranges according to application
- Automatic temperature compensation options depending on model
- Multiple calibration and buffer recognition functions depending on instrument
- Replaceable and application-specific electrode options where available
- Solutions for laboratory, industrial and field water testing
- Technical assistance for model and electrode selection
- International supply, export packaging and shipping support
About AELAB
AELAB is a laboratory equipment brand and supplier based in Guangzhou, China. The company provides laboratory instruments, analytical systems and quality control solutions for distributors, universities, research organizations, environmental laboratories and industrial customers worldwide.
The AELAB product portfolio includes water testing instruments, analytical equipment, laboratory equipment, environmental monitoring systems, pharmaceutical testing equipment and sample preparation solutions.
Official website: www.aelabgroup.com
Frequently Asked Questions
What parameters can AELAB water quality meters measure?
Depending on the selected instrument, available parameters may include pH, ORP, conductivity, TDS, salinity, dissolved oxygen, water hardness and temperature.
What is the difference between a single-parameter and multi-parameter meter?
A single-parameter meter is designed primarily for one measurement, while a multi-parameter meter can measure several water quality parameters using one instrument and compatible electrodes.
Should I choose a benchtop or portable water quality meter?
Benchtop meters are generally selected for routine laboratory testing, while portable meters are more suitable for field sampling, treatment plants and measurements performed at different locations.
Can one meter measure pH, conductivity, TDS and dissolved oxygen?
Selected multi-parameter systems can support several of these parameters. The exact measurement capability depends on the meter configuration, channels, electrodes and probes supplied with the system.
Do water quality meters require regular calibration?
Yes. Regular calibration with suitable standards or buffer solutions is important for maintaining reliable results. Calibration frequency depends on the application, electrode condition, sample type and laboratory procedure.
Can AELAB recommend the correct meter and electrode?
Yes. Customers can provide the required parameters, measurement range, sample type, testing location, accuracy level and destination country to receive suitable model recommendations.
Request Water Quality Meter Recommendation, Price and Technical Proposal
Tell the AELAB technical sales team which parameters you need to measure, your expected measurement range, sample type, required accuracy, preferred benchtop or portable configuration and testing environment.
AELAB can recommend suitable instrument families according to your laboratory, field or industrial water testing requirements.
The technical proposal may include available configurations, measurement parameters, specifications, compatible electrodes, optional accessories, delivery time, packaging and shipping information.
View AELAB Water Quality Meter Models
Email: info@aelabgroup.com
WhatsApp / WeChat: +86 158 0001 6110
Website: www.aelabgroup.com