COLO.Science — PORTABLE WATER QUALITY METER — VIKING-310T
VIKING 310T Portable pH Meter pH/mV Meter | COLO.Science pH / mV Meter with Temperature Measurement
VIKING-310T Portable pH/mV Meter is a professional portable electrochemistry instrument for accurate pH, mV and temperature measurement in laboratory and field environments. With a 4.3″ color touchscreen, ±0.01 pH accuracy, 1–5 point pH calibration, automatic buffer recognition, ATC / MTC temperature compensation, USB output, GLP-compliant data logging and IP65 protection, VIKING-310T is suitable for water quality testing, environmental monitoring, QA/QC laboratories, education, research and industrial process sampling.
pH / mV
Temperature
4.3″ touchscreen
±0.01 pH
5-point calibration
GLP-compliant
IP65
SKU PRO5388

COLO.SCIENCE — WATER QUALITY / PORTABLE ELECTROCHEMISTRY METERS
Portable pH and mV meter for water quality, field measurement and laboratory QA/QC
The VIKING-310T Portable pH Meter is designed for users who need reliable pH, mV and temperature measurement in one compact instrument. It combines touchscreen operation, automatic buffer recognition, electrode diagnostics and GLP-compliant data logging for routine and professional electrochemical testing.
With -2.00 to 20.00 pH measurement range, ±0.01 pH accuracy, 1–5 point calibration, selectable NIST, DIN, GB and USA buffer groups, mV measurement, ATC / MTC temperature compensation and IP65 protection, VIKING-310T is suitable for water quality control, wastewater monitoring, industrial sampling, education and laboratory quality control.
Key features
- Portable pH / mV meter with temperature measurement and compensation.
- 4.3″ color high-contrast LCD touchscreen with backlight.
- pH range -2.00 to 20.00 pH with 0.1 / 0.01 pH resolution.
- pH accuracy ±0.01 pH for reliable laboratory and field measurements.
- 1–5 point pH calibration with automatic buffer recognition.
- NIST, DIN, GB and USA buffer groups with custom buffer support.
- GLP-compliant data logging with 1000 data groups per parameter.
- USB output for PC or printer connection.
- IP65 waterproof housing and rechargeable Li battery for portable use.
Suitable for
- Drinking water, wastewater and general water quality testing.
- Environmental monitoring and field sampling.
- Industrial effluent and process sample control.
- Food & beverage QA/QC, fermentation and agriculture.
- Education, research institutions and electrochemistry training.
- Laboratories that need portable pH, mV and temperature data with traceable records.
TECHNICAL SPECIFICATIONS — VIKING-310T PORTABLE PH / MV METER
| Model | VIKING-310T |
| Product type | Portable pH / mV meter with temperature measurement |
| SKU | PRO5388 |
| Display | 4.3″ color high-contrast LCD touchscreen with backlight |
| Measured parameters | pH, mV and temperature |
| pH range | -2.00 to 20.00 pH |
| pH resolution | 0.1 / 0.01 pH |
| pH accuracy | ±0.01 pH |
| pH calibration | 1–5 points with automatic buffer recognition |
| Buffer groups | NIST, DIN, GB, USA; custom buffers supported |
| mV range | -2000.0 to 2000.0 mV |
| mV resolution | 0.1 mV |
| mV accuracy | ±0.3 mV or ±0.1% FS |
| Temperature range | -5 to 110°C / 23 to 230°F |
| Temperature units | °C, °F |
| Temperature resolution / accuracy | 0.1 / ±0.2°C |
| Temperature compensation | ATC / MTC |
| Measurement modes | Auto-Read, Timed Read, Continuous Read, Auto-Hold |
| Electrode diagnostics | Automatic electrode diagnostics with pH slope and offset display |
| Data capacity | 1000 data groups per parameter; GLP-compliant date/time logging |
| Electrode / temperature input | BNC / Q9 electrode connector; 4-pin aviation temperature connector |
| Output | USB output for PC or printer |
| Auto shutdown | 300 / 600 / 1200 / 1800 / 3600 s, or off |
| Power supply | Rechargeable Li battery; AC adapter 100–240 V AC input, 5 V DC output |
| Protection rating | IP65 waterproof housing |
| Dimensions | 90 × 255 × 40 mm |
| Weight | Approx. 500 g / 1.1 lb |
| HTML TechSpec | Open VIKING-310T technical specification |
| PDF Datasheet | Open VIKING-310T PDF datasheet |
Final electrode type, accessory kit and delivered configuration should be confirmed before quotation. Technical data is provided for product selection and may vary according to configuration, electrode selection and regional delivery package.
Standard delivery and portable kit
VIKING-310T is supplied as a portable measuring system with accessories for routine pH measurement and practical field handling. The standard delivery typically includes a 3-in-1 pH composite electrode, NIST pH standard solutions, electrode holder, silicone rubber protective case, wristbands, touch pen and carrying case. Exact contents may vary depending on configuration and region.

VIKING-310T main instrument
Portable pH / mV / temperature meter with 4.3″ touchscreen.

Carrying case and accessories
Protective case and accessory kit for portable laboratory and field use.
COLO.SCIENCE VIDEO
VIKING-310T product video demonstration
Open the VIKING-310T product video to review the touchscreen interface, instrument handling and portable measurement configuration. The current video is linked through SharePoint / Microsoft Stream.
Video note: SharePoint / Stream links are safest as external buttons. For direct embedded playback inside the product page, upload the MP4 to WordPress Media Library and replace the button with the HTML5 video block shown below.
COLO.SCIENCE KNOWLEDGE
Learn more about pH, mV and water quality measurement
Explore COLO.Science resources covering pH theory, calibration buffers, electrode care, millivolt measurement and practical water quality testing workflows.
Applications and laboratory value
Water quality and wastewater
VIKING-310T supports pH, mV and temperature checks for drinking water, wastewater, environmental water samples and industrial effluent control.
Field and on-site measurements
The portable housing, protective case, rechargeable battery and carrying case make the instrument suitable for field sampling and mobile laboratory use.
Food, beverage and agriculture
Accurate pH measurement can support fermentation control, food and beverage QA/QC, agricultural testing and process sample monitoring.
Education and research
The touchscreen interface, calibration functions and electrode diagnostics make VIKING-310T useful for electrochemistry training, research and method work.
How to choose the correct VIKING-310T configuration
When selecting a portable pH meter, the laboratory should define the sample type, required pH range, temperature range, calibration procedure, data logging needs and whether the instrument will be used mainly in the laboratory, in the field or in both environments. VIKING-310T is suitable when the user requires reliable pH accuracy, touchscreen operation, GLP-compliant records and portable handling.
Electrode selection is important for real measurement performance. Before quotation, COLO.Science recommends confirming the sample matrix, electrode body type, cable and connector needs, temperature compensation requirement, calibration buffers and expected pH / mV reporting workflow.
VIKING-310T as a portable pH meter for daily water quality work
VIKING-310T Portable pH Meter is useful when a laboratory or field team needs a dependable portable instrument for pH, mV and temperature measurement. Instead of working with a basic handheld tester, users can operate a touchscreen system with calibration management, electrode diagnostics, measurement modes, data storage and USB communication.
The combination of ±0.01 pH accuracy, 1–5 point calibration, automatic buffer recognition and selectable NIST, DIN, GB and USA buffer groups makes VIKING-310T suitable for routine laboratory control and field measurement workflows. IP65 protection, rechargeable Li battery, carrying case and protective accessories support practical use outside the laboratory, while GLP-compliant logging helps laboratories maintain clearer measurement records.
Configuration notice — portable meters are delivered according to application requirements
Portable pH / mV meters are typically selected according to sample type, electrode configuration, calibration procedure, temperature range, field use and documentation needs.
Available configurations, compatible electrodes and accessory sets should be confirmed before quotation.
The content shown on this website is provided for general information and may not represent the final delivered configuration.
VIKING 310T Portable pH Meter pH/mV Meter | COLO.Science touchscreen pH / mV meter for water quality and laboratory use
A professional portable pH meter for pH, mV and temperature measurement — with 4.3″ touchscreen, ±0.01 pH accuracy, 1–5 point calibration, automatic buffer recognition, ATC / MTC, USB output, GLP-compliant data logging, IP65 protection and support from COLO.Science.



