When pH measurements need to be tracked, reviewed, or reported later, a meter with built-in data logging can make testing more consistent and manageable. The right model depends on whether you work in a laboratory, production environment, field setting, or water-treatment application.
We compared ten pH meters with data logging across accuracy, calibration, electrode support, connectivity, portability, and measurement range to help you choose a practical fit for your workflow.
Best 10 Ph Meters with Data Logging Picks for 2026
Best SD Card Logger
Sper Scientific 850060 pH Meter
- Logs pH, temperature, and ORP to SD cards
- Exports pre-formatted files directly to Excel
- Includes ATC, auto calibration recognition, and accessories
Best For: Portable water testing with easy removable data storage
Best Research-Grade Benchtop
Apera PC9500 Multiparameter Meter
- Stores 1,000 logged data sets with GLP management
- Exports records by USB to PC or mini printer
- Measures pH/ORP and conductivity-related parameters
Best For: Laboratory multiparameter testing and documented quality control
Best High-Capacity SD Logger
- Stores up to 20 million readings on a 2G SD card
- Exports time-stamped data in Excel format
- Offers sampling intervals from 5 to 600 seconds
Best For: Extended monitoring with high-volume, scheduled data logging
Best Simple Lab Data Management
Apera AI521 PH800 Benchtop Meter
- Stores 500 data groups with USB output
- Supports guided one- to three-point auto calibration
- Displays pH and temperature together
Best For: Routine laboratory pH testing with organized USB records
Versatile Field Logger
- Measures pH, EC, TDS, mV, and temperature
- Logs data and exports it by USB
- Includes probe diagnostics and GLP data
Best For: Multi-parameter water and hydroponic testing
Lab Documentation Pick
- Stores up to 1,000 measurement records
- Offers multipoint auto calibration and ATC
- Includes alerts and three measurement modes
Best For: Stationary laboratory and quality-control testing
Portable Lab-Accuracy Choice
Apera SX711 Portable Data Logger
- Measures pH, mV, and temperature
- Stores and recalls 100 data sets
- Includes ATC electrode, buffers, and carrying case
Best For: Portable field and routine lab pH testing
Best Benchtop Precision
- 0.01 pH stated accuracy
- Stores 200 sets per parameter
- Large LCD with temperature compensation
Best For: Routine benchtop testing and logged lab measurements
Best Portable Data Export
- Measures five parameters
- Logging with USB export
- Includes probe diagnostics
Best For: Portable multi-parameter testing with transferable records
Best Industrial Bench Logging
- Measures pH, ORP, and temperature
- Logging bench-meter design
- Cost-effective industrial option
Best For: Industrial bench testing with focused parameter coverage
Best SD Card Logger – Sper Scientific 850060 pH Meter
The Sper Scientific 850060 is a practical choice among ph meters with data logging for users who want pH, temperature, and ORP records saved directly to a standard SD card. Its automatic calibration recognition, ATC, and Excel-ready files make routine water testing and data transfer straightforward.
Best For: Water testing workflows that need portable SD card storage and simple Excel analysis.
Pros:
- Logs pH, temperature, and ORP to standard SD cards.
- Transfers pre-formatted data to Excel without additional software or cables.
- Offers automatic calibration recognition, ATC, and a large backlit LCD.
- Includes a carrying case, batteries, and SD card.
Cons:
- Its data storage depends on exchanging or managing SD cards.
- The supplied notes do not specify the number of stored readings or sampling intervals.
Choose this model when easy file transfer and flexible removable storage matter more than an integrated benchtop setup. The fold-out easel and included accessories also make it ready for field or bench use.
Best Research-Grade Benchtop – Apera PC9500 Multiparameter Meter
The Apera Instruments PC9500 is a research-grade option among ph meters with data logging, combining pH/ORP and conductivity measurements with GLP data management. It stores up to 1,000 data sets and supports USB export to a PC or pin-type mini printer for documented laboratory workflows.
Best For: Laboratories and quality-control settings that need multiparameter testing, GLP records, and report-ready output.
Pros:
- Provides manual and automatic data logging with 1,000 sets of storage.
- Supports USB data export to a PC or compatible mini printer.
- Measures pH/mV (ORP) and conductivity-related parameters through dual channels.
- Includes a TestBench setup with electrode holder, buffer organizers, and magnetic stirrer.
Cons:
- Its 7.83-pound benchtop format is less portable than handheld meters.
- Its broader multiparameter design may be more equipment than basic pH testing requires.
This is the strongest fit when traceable laboratory organization and multiple measurements justify a more substantial instrument. The included Swiss LabSen 211 electrode is specified for accuracy up to 0.003 pH.
Best High-Capacity SD Logger – Extech SDL100 pH Meter
The Extech SDL100 is a versatile choice among ph meters with data logging, recording pH or ORP alongside temperature on an SD card. It can store up to 20 million readings with a 2G card, time-stamp files in Excel format, and use selectable sampling intervals from 5 to 600 seconds.
Best For: Long-term monitoring projects that need time-stamped, high-volume SD card records.
Pros:
- Stores up to 20 million readings through a 2G SD card.
- Exports date- and time-stamped data in Excel format.
- Offers sampling rates from 5, 10, 30, 60, 120, 300, and 600 seconds.
- Includes ATC or manual temperature compensation and three-point calibration.
Cons:
- The supplied specifications list six AA batteries as required, while the included-components note mentions AAA batteries.
- It stores 99 readings manually, so larger manual capture depends on the SD card logger.
For unattended or extended sampling, the SDL100’s large stated storage capacity and configurable intervals are compelling. Its backlit dual LCD also helps when checking pH or ORP and temperature during use.
Best Simple Lab Data Management – Apera AI521 PH800 Benchtop Meter
The Apera Instruments AI521 PH800 is a focused benchtop option among ph meters with data logging, offering 500 groups of stored data and USB output. Automatic calibration recognizes five types of pH standards, while the included combination electrode and simultaneous pH/temperature display support routine laboratory measurements.
Best For: Scientific research and quality-control users seeking straightforward benchtop pH testing with USB records.
Pros:
- Stores 500 groups of data with USB output.
- Provides one- to three-point automatic calibration with calibration guidance.
- Displays pH and temperature simultaneously on a large backlit LCD.
- Shows electrode slope between calibrations to help assess electrode health.
Cons:
- It is a pH-focused meter rather than a multiparameter conductivity system.
- The supplied notes do not specify the USB export format or included USB accessories.
The AI521 is a sensible middle ground for labs that need organized records without the broader dual-channel functionality of the PC9500. Its calibration guidance and electrode-slope display add useful routine-maintenance information.
Versatile Field Logger – Milwaukee MW806
Milwaukee Waterproof High Range Logging Portable pH/EC/TDS/mV/Temperature Meter with USB - MW806
Check Price On AmazonThe Milwaukee MW806 is a practical choice among pH meters with data logging for users who need to measure more than acidity. Its amplified probe measures pH, EC, TDS, temperature, and mV, while onboard logging and USB export support recordkeeping and later analysis.
Best For: Hydroponics, water testing, and field measurements that require pH plus conductivity or TDS readings.
Pros:
- Measures pH, EC, TDS, mV, and temperature with one probe system.
- Offers high EC and TDS ranges, including up to 20.00 mS/cm EC and 16.00 g/L TDS using the stated conversion factor.
- Includes GLP data, one-button logging, USB export, and pH probe diagnostics.
Cons:
- Its broader feature set may be unnecessary for users who only need pH readings.
- The supplied notes do not specify the logging capacity or USB export format.
The MW806 stands out when conductivity and dissolved-solids tracking matter alongside pH. Probe diagnostics and exportable records add useful support for routine testing and documentation.
Lab Documentation Pick – LOHAND LH-T710 Benchtop Meter
The LOHAND LH-T710 is a benchtop option for buyers seeking pH meters with data logging and lab-oriented controls. It combines 0.01 pH resolution, multipoint automatic calibration, temperature compensation, and storage for up to 1,000 measurement records.
Best For: Laboratory, wastewater, aquaculture, food and beverage, and other stationary testing workflows that need on-device records.
Pros:
- Stores up to 1,000 records for review, querying, and deletion on the meter.
- Provides 0.01 pH resolution, a -2 to 16 pH range, and -10 to 110°C temperature detection.
- Supports multipoint automatic calibration, temperature compensation, three measurement modes, and smart alerts.
- Uses a standard BNC electrode connection for broad replacement compatibility.
Cons:
- As a benchtop meter, it is less suited to mobile or field testing than a handheld model.
- IP54 protection is designed for dust and splashing, not full waterproofing.
Choose the LH-T710 when record capacity and lab workflow features are priorities. Its large internal storage, alerts, and flexible measurement modes are particularly useful for recurring quality-control documentation.
Portable Lab-Accuracy Choice – Apera SX711 Portable Data Logger
The Apera Instruments SX711 is a compact option among pH meters with data logging, combining lab-grade 0.01 pH measurement with a portable handheld design. Its included lead-free ATC electrode, automatic calibration, and 100-record memory make it suited to organized field or lab checks.
Best For: Users who need portable pH, mV, and temperature measurements with straightforward record recall.
Pros:
- Provides 0.01 pH-level measurement with automatic temperature compensation.
- Stores and recalls up to 100 data sets.
- Includes one- to three-point automatic calibration, self-diagnosis, and ready-to-use pH buffers.
- Comes as a kit with a lead-free ATC pH electrode and rugged carrying case.
Cons:
- Its 100-record capacity is smaller than the LOHAND LH-T710’s stated 1,000 records.
- The supplied notes do not mention USB export for logged data.
The SX711 is a balanced pick for portability and dependable routine documentation. Its carrying case, included electrode, automatic functions, and data recall keep setup practical for field testing without giving up fine pH resolution.
Best Benchtop Precision – Lab Benchtop pH Meter
For buyers seeking pH meters with data logging for routine lab, classroom, food, or beverage testing, this benchtop model combines 0.01 pH accuracy with storage for up to 200 sets per parameter. Its large display and temperature-compensation features support practical day-to-day measurements.
Best For: Benchtop testing in laboratories, classrooms, aquariums, kitchens, breweries, and similar settings.
Pros:
- Provides stated 0.01 pH accuracy and repeatable readings.
- Stores 200 sets of data for each parameter.
- Offers automatic or manual temperature compensation.
- Includes auto-hold and a 6-inch high-resolution LCD display.
Cons:
- Its benchtop design is less convenient for field use than a portable meter.
- The supplied notes do not specify USB export or connectivity for stored readings.
This is a strong choice when measurement consistency and on-device data storage matter more than portability. The auto-calibration, temperature compensation, and auto-hold functions add useful convenience for routine testing.
Best Portable Data Export – Milwaukee MW805 Logging Meter
Milwaukee Waterproof Low Range Logging Portable pH/EC/TDS/mV/Temperature Meter with USB - MW805
Check Price On AmazonIf you need pH meters with data logging for portable, multi-parameter testing, the Milwaukee MW805 measures pH, EC, TDS, temperature, and mV in one waterproof unit. Logging, USB export, and GLP data access make it practical for users who need to review or transfer results.
Best For: Portable users who need combined pH, conductivity-related measurements, temperature readings, and USB data export.
Pros:
- Measures pH, EC, TDS, temperature, and mV.
- Supports logging and USB export for data handling.
- Provides GLP data at the push of a button.
- Probe diagnostics can alert users to potential accuracy-affecting problems.
Cons:
- The supplied notes do not specify the storage capacity or export format.
- Its multi-parameter feature set may be more than needed for simple pH-only testing.
The MW805 stands out for portability and workflow support. Its combination of logging, USB connectivity, and probe diagnostics is especially useful when measurements need to be documented beyond the meter itself.
Best Industrial Bench Logging – Milwaukee MW151 Bench Meter
The Milwaukee MW151 is a bench-style option for shoppers comparing pH meters with data logging for industrial applications. It combines pH, ORP, and temperature measurement with a logging-focused design, offering a cost-conscious alternative for users who do not need a broader multi-parameter meter.
Best For: Industrial and bench applications requiring pH, ORP, and temperature logging.
Pros:
- Measures pH, ORP, and temperature.
- Designed as a logging bench meter.
- Listed as tested for quality.
- Positioned as a cost-effective option.
Cons:
- Its bench format is less suitable for mobile testing.
- The supplied notes do not provide storage capacity, USB connectivity, or export details.
Choose the MW151 when a straightforward bench meter for industrial use fits your workflow. Its focused pH/ORP/temperature measurement set may be preferable to a more feature-heavy instrument, though buyers needing detailed data-transfer specifications should verify them before purchasing.
How We Picked the Best Ph Meters with Data Logging
We focused on meters that can save readings internally or export them through SD card, USB, or another supported data-management system. We also considered measurement accuracy, calibration options, automatic temperature compensation, electrode connectivity, display usability, and the ability to measure related parameters such as ORP, conductivity, TDS, or temperature.
Because users have different requirements, this list includes benchtop laboratory instruments, portable handheld meters, and multiparameter systems. A strong data logger is useful, but it should not replace reliable calibration, appropriate electrode care, or a measurement range suited to the sample.
Quick Comparison
- Best for extensive laboratory documentation: Apera PC9500 and AI521.
- Best for SD-card recording: Sper Scientific 850060 and Extech SDL100.
- Best for portable multiparameter testing: Milwaukee MW805, MW806, and Apera SX711.
- Best for straightforward benchtop testing: LOHAND and the compact laboratory benchtop meter.
- Best for bench pH, ORP, and temperature logging: Milwaukee MW151.
Key Buying Factors for Ph Meters with Data Logging
Data Storage and Export
Check how readings are saved, how much memory is available, and whether files can be transferred easily. SD-card models are convenient for moving records between devices, while USB or GLP-focused systems may be better for organized laboratory documentation.
Accuracy and Calibration
Look for the stated resolution and accuracy, then verify whether the meter supports one-, two-, or three-point calibration. Automatic calibration can speed up routine testing, but compatible buffer standards and a dependable electrode remain essential.
Parameters and Range
A basic pH meter may be ideal for dedicated pH work. If your process also requires ORP, conductivity, TDS, or temperature readings, a multiparameter model can reduce equipment changes. Confirm that the measurement range matches your samples.
Portability and Durability
Handheld waterproof meters are generally preferable for fieldwork, tanks, aquariums, and water-treatment sites. Benchtop meters offer larger displays, more controlled operation, and often stronger reporting features for laboratory benches.
Electrode and Connectivity
Confirm the connector type, included electrode, replacement availability, and compatibility with specialized probes. ATC helps compensate for temperature-related measurement changes, but it does not correct for poor sampling or an aging electrode.
Who Should Buy Which Ph Meters with Data Logging?
Choose a research-oriented benchtop meter if GLP records, USB output, calibration tracking, and repeatable laboratory workflows are priorities. Choose an SD-card datalogger if you need simple, transferable records without relying on specialized software.
Choose a portable multiparameter meter for field sampling or water testing where pH, temperature, conductivity, TDS, or ORP may all matter. Choose a basic benchtop model for routine pH checks when advanced reporting and extra measurement modes are unnecessary.
Before buying, match the meter’s range, accuracy, logging method, electrode connection, and environmental protection to your actual testing process. That combination matters more than selecting the model with the longest feature list.