COLO.Science — WATER QUALITY / ELECTROCHEMISTRY — VIKING-DO511
VIKING-DO511 Touch Screen Portable DO Meter
VIKING-DO511 touch screen portable DO meter is a professional portable dissolved oxygen meter for field and laboratory measurement of dissolved oxygen, oxygen saturation and temperature. The instrument combines an optical DO sensor, 4.3″ color touchscreen, Auto-Read measurement modes, Auto-Hold endpoint locking, GLP-compliant data storage, USB connectivity, rechargeable Li battery and IP65 waterproof protection in a robust portable format.
| Overview | Tech Spec | Video Soon | Quote |
COLO.SCIENCE — PORTABLE WATER QUALITY / DISSOLVED OXYGEN METERS
Optical portable dissolved oxygen meter for field and laboratory workflows
The VIKING-DO511 touch screen portable DO meter is designed for routine dissolved oxygen testing in water quality, environmental monitoring, wastewater, aquaculture, industrial process water and laboratory sampling. It reports dissolved oxygen as ppm / mg/L, oxygen saturation as % and temperature in one compact portable platform.
A 4.3″ color touchscreen, optical DO probe input, pressure and salinity compensation, Auto-Hold endpoint capture and GLP-style memory help users perform repeatable measurements and document results during field or bench work.
Key features
- Portable dissolved oxygen meter for DO, oxygen saturation and temperature measurement.
- Optical DO electrode for practical field measurement without polarographic membrane workflow.
- 4.3″ color high-contrast touchscreen for setup, calibration, measurement and stored data review.
- DO range 0.00 to 20.00 ppm with 0.01 mg/L resolution and ±0.3 ppm accuracy.
- Auto-Read, Timed-Read and Continuous-Read with Auto-Hold endpoint locking.
- 1000 GLP data groups, USB 2.0 connectivity, rechargeable Li battery and IP65 housing.
Suitable for
- Drinking water, surface water and wastewater monitoring.
- Aquaculture, fish farming and environmental field checks.
- Industrial process water, effluent control and QA sampling.
- Laboratory dissolved oxygen verification and method training.
- Portable on-site measurement where IP65 protection and carrying case support are required.
- Routine water quality workflows that require pressure and salinity compensation.
TECHNICAL SPECIFICATIONS — VIKING-DO511 TOUCH SCREEN PORTABLE DO METER
| Model | VIKING-DO511 |
| Model code / SKU | DO511T / PRO2427 |
| Product type | Touch screen portable optical dissolved oxygen meter with temperature measurement |
| Measured parameters | Dissolved oxygen, oxygen saturation and temperature |
| Display | 4.3″ color high-contrast LCD touchscreen with backlight |
| Sensor type | Optical dissolved oxygen sensor |
| DO range / resolution / accuracy | 0.00 to 20.00 ppm · 0.01 mg/L · ±0.3 ppm |
| DO saturation range / resolution / accuracy | 0.0 to 200.0% · 0.10% · ±10.0% |
| Temperature range / resolution / accuracy | 0 to 50 °C · 0.1 · ±0.2 relative |
| Calibration | Air-saturated water or zero point |
| Compensation | Automatic / manual barometric pressure compensation; manual salinity factor correction |
| Pressure units | kPa / mbar / Torr / Atm |
| Reading modes | Auto-Read Fast / Medium / Slow, Timed Read and Continuous Read |
| Reading prompts / endpoint | Reading / Stable / Locked prompts; Auto-Hold endpoint capture |
| Data storage | 1000 data groups, GLP-compliant storage with review / compare / recalculate tools |
| Input connector | 6-pin aviation connector for the optical DO electrode |
| Connectivity | USB 2.0 output |
| Power supply | Rechargeable Li battery; AC adapter 100–240 V AC input, 5 V DC output |
| Auto shutdown | 300 / 600 / 1200 / 1800 / 3600 seconds, or off |
| Protection class | IP65 waterproof housing |
| Dimensions / weight | 90 × 255 × 40 mm · approx. 500 g / 1.1 lb |
Final measurement performance depends on probe condition, calibration routine, pressure and salinity settings, sample matrix, temperature conditions and field workflow. Probe and accessory compatibility should be confirmed before quotation.
Visual support: carrying case, display and input connectors
4.3″ touchscreen display
The 4.3″ color high-contrast LCD touchscreen supports parameter setup, calibration, measurement and data review.
Carrying case and field set
Carrying case, protective case, wristbands and touch pen support mobile operation, storage and transport.
Input connectors
- DO probe input: 6-pin aviation connector for the optical DO electrode.
- Connectivity: USB 2.0 output for data connection.
- Power: rechargeable Li battery with 5 V DC adapter.
Connector compatibility should be verified with the final probe and cable configuration before order confirmation.
Standard delivery and accessories
- Optical DO electrode DO-968-HC with 3 m cable.
- Zero oxygen calibration solution powder supplied in vial format.
- Electrode holder for stable probe handling.
- Silicone rubber protective case with wristbands.
- Touch pen for touchscreen operation.
- Carrying case for field storage and transport.
Configuration note
Dissolved oxygen meters may be delivered in different configurations depending on application, selected probe, cable length, calibration requirements and accessory set. The final quotation and manufacturer-confirmed specification define the exact delivered configuration.
Measurement control, compensation and GLP data handling
Optical DO measurement
VIKING-DO511 uses an optical dissolved oxygen sensor and supports air-saturated water or zero-point calibration. This makes it practical for field water quality monitoring and routine laboratory checks.
Pressure and salinity correction
Automatic or manual barometric pressure compensation and manual salinity factor correction help adapt dissolved oxygen readings to real sample and location conditions.
GLP data handling
The instrument stores up to 1000 GLP-compliant data groups and includes review, compare and recalculation tools for structured measurement documentation.
COLO.SCIENCE VIDEO
VIKING-DO511 video presentation is in preparation
The video will present optical DO probe handling, touchscreen operation, calibration workflow, pressure and salinity compensation, field use and practical dissolved oxygen measurement with VIKING-DO511.
COLO.SCIENCE KNOWLEDGE
Learn more about dissolved oxygen and water quality analysis
Explore COLO.Science resources covering dissolved oxygen measurement, ppm versus % saturation reporting, salinity correction, pressure compensation and practical water quality workflows.
Applications and field value
Water quality monitoring
The VIKING-DO511 touch screen portable DO meter is suitable for drinking water, wastewater, surface water and routine environmental dissolved oxygen checks.
Aquaculture and field work
Optical DO sensing, IP65 housing and carrying case support on-site dissolved oxygen measurement in fish farming, reservoirs and outdoor water sampling.
Industrial process water
DO511 can support process water, effluent control and QA sampling where oxygen level, saturation and temperature need to be checked directly at the sampling point.
Education and laboratory verification
The touchscreen interface, multiple reading modes and stored data review make the instrument practical for training, demonstration and routine laboratory DO verification.
How to choose the correct DO meter configuration
When selecting the VIKING-DO511 touch screen portable DO meter, the configuration should be checked according to sample type, required DO range, salinity conditions, pressure conditions, cable length, probe handling and field or laboratory workflow. Routine water samples, aeration control, aquaculture and wastewater monitoring may require different accessories or measurement procedures.
COLO.Science can support the selection of optical DO probes, calibration accessories, carrying case configuration, field-use accessories and documentation so that the final VIKING-DO511 package matches the application and quotation.
VIKING-DO511 touch screen portable DO meter for daily water quality measurement
The VIKING-DO511 touch screen portable DO meter is useful when a laboratory or field team needs a compact optical dissolved oxygen meter with touchscreen operation, waterproof protection and documented data handling. The combination of optical sensing, 0.00 to 20.00 ppm DO range, % saturation reporting, temperature measurement and Auto-Hold endpoint capture supports repeatable work in routine water quality control.
In practice, dissolved oxygen measurement quality depends on probe condition, calibration procedure, salinity factor, pressure compensation and correct sampling technique. VIKING-DO511 provides the portable instrument platform, while COLO.Science can help confirm the correct probe, cable, calibration and accessory configuration for the final measurement workflow.
Configuration notice
Dissolved oxygen meters may be delivered in different configurations depending on selected probe, cable length, calibration accessories, field kit and region. The official quotation defines the final scope of supply. Website content is provided for general product presentation and may not represent the exact delivered configuration. Specifications may change without notice.


