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 IP67 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
IP67
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 IP67 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.
- IP67 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 | IP67 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. It shows installation, parameter settings, calibration and measurement.
VIKING-310T operation video: installation, parameter settings, calibration and measurement (4:44). Open the video in a new window
ELECTRODES AND ACCESSORIES
Electrodes and accessories for the VIKING-310T portable pH meter
The VIKING-310T portable pH meter is delivered with the 3-in-1 electrode E-301-QC, pH buffers and a carrying case. For special samples choose a dedicated electrode — BNC (Q9) electrodes connect directly, S7-head electrodes connect by cable.
PRO4153
3-in-1 pH electrode E-301-QC
pH, reference and temperature in one body; BNC (Q9) and 4-pin connector.
Standard delivery
PRO6122
pH buffer set 4.01 / 7.00 / 10.01
Standard pH buffer solutions, 50 mL each, for 3-point calibration.
Standard delivery
PRO7006
Carrying case
Protective case for the meter, electrode and buffers in field use.
Standard delivery
PRO6995
3-in-1 pH electrode, Premium Longlife
Longlife reference system (Ref.+) for longer service intervals; BNC (Q9) and 4-pin.
Optional
PRO6137
pH electrode E-201-Z, spear tip
Piercing tip for semi-solid samples; BNC (Q9), connects directly.
Optional
PRO6144
pH electrode, blade spear (knife)
POM / 316 stainless steel knife body for cheese, meat and fruit; S7 head.
Optional
PRO6138
pH electrode E-201-P, flat surface
Flat membrane for surface pH on paper, leather and agar; BNC (Q9).
Optional
PRO6146
pH electrode, slender
Φ6×100 mm shaft for test tubes and small vessels; S7 head.
Optional
PRO6147
pH electrode, long
Φ12×260 mm shaft for deep containers and bottles; S7 head.
Optional
PRO6998
Thermal printer 771000
Prints measurement and calibration records for GLP documentation.
Optional
More electrodes and accessories
- PRO6996 — 3-in-1 pH electrode for ultrapure water
- PRO6997 — 3-in-1 pH electrode for hot samples, 0–115 °C
- PRO6126 — 3 M KCl electrolyte, 250 mL, for refillable reference electrodes
Tell us your sample and we will confirm the right electrode for your VIKING-310T portable pH meter. Full electrode range: Electrochemistry catalogue →
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. IP67 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.
Sales and support for international customers
COLO Lab ExpertsPolje ob Sotli 4, SI-3255 Buče, Slovenia
Phone: +386 70 713 437 · Email: sales@colo.si · Web: colo.si
We supply laboratories across Europe directly and through partners. B2B prices are quoted net, excluding VAT.
Selection, commissioning and service support
Choosing a laboratory instrument is easier when the application is clear from the start. Tell us what kind of samples you measure, how many per day, which range and accuracy you need and which standards or internal procedures you follow. Based on that, our team recommends a suitable configuration together with the accessories and consumables that make sense for routine work, so you do not pay for options you will never use.
After delivery we stay available for practical questions: first start-up, calibration routine, daily care, storage and typical operator mistakes that shorten the life of sensors and wearing parts. If results begin to drift or the device reports an error, describe the symptoms and we will suggest what to check first before any repair is considered.
Spare parts, replacement sensors and calibration materials can be ordered later through the same contact. For a quotation or technical advice, use the request button on this page and add a short description of your application.
