VIKING-DO210 — Portable Dissolved Oxygen Meter · DO / Temp. (DO Saturation)

DO 0.00–20.00 mg/L
DO Sat 0.0–200.0%
Temp -5–110°C
Polarographic
3.5″ LCD
ATC / MTC
200 data sets
IP65

OVERVIEW

The VIKING-DO210 portable dissolved oxygen meter is designed for routine DO (mg/L),
DO saturation (%) and temperature measurements in water quality workflows.
It uses a polarographic DO sensor and a clear 3.5″ LCD display for fast field operation.

Built for practical work, VIKING-DO210 supports Auto-Read and Continuous modes with
reading prompts (Reading / Stable / Locked) and an Auto-Hold endpoint function to reduce user variability.
The instrument provides ATC/MTC temperature compensation, barometric compensation,
salinity factor correction, and air-saturated water or zero oxygen calibration.
With IP65 protection and up to 200 stored results per parameter, it is a reliable meter for on-site testing and educational lab work.

Portable DO meter (0.00–20.00 mg/L) with polarographic sensing and IP65 housing for reliable dissolved oxygen measurements in the field.
VIKING-DO210 supports DO concentration, DO saturation and temperature, with
Auto-Read / Continuous workflows, compensation tools, and 200 stored results for practical water quality documentation.
COLO.Science · Practical and robust equipment for everyday laboratory workflows.

COLO.SCIENCE KNOWLEDGE

Practical insights for dissolved oxygen measurement

Explore COLO.Science articles on dissolved oxygen (DO), saturation, compensation (temperature/pressure/salinity),
sensor maintenance, and good measurement practice for water quality and routine field testing.

Product Overview

VIKING-DO210 is a compact, portable dissolved oxygen meter intended for daily measurements in
environmental monitoring, aquaculture spot checks, and municipal or educational laboratories.
The meter measures dissolved oxygen concentration (0.00–20.00 mg/L), DO saturation (0.0–200.0%),
and temperature (-5 to 110°C) using a polarographic sensor.
Its workflow is optimized for field practicality: fast readout, stability prompts, an Auto-Hold endpoint,
and protective IP65 housing for outdoor use.

Configuration notice — delivery depends on selected options

DO meters may be delivered in different configurations depending on application and selected accessories.
The official technical specification defines the exact configuration and included components for each model/variant.
Content shown on this website is provided for general informational purposes only. Specifications may change without notice.

Key Features

DO 0.00–20.00 mg/L
DO saturation 0.0–200.0%
Temp -5 to 110°C
Polarographic sensor
3.5″ LCD
Auto-Read / Continuous
Auto-Hold endpoint
ATC / MTC
Pressure + salinity correction
200 stored results
IP65 waterproof

Water quality
Practical dissolved oxygen measurement with compensation tools

Stable endpoint with Auto-Hold

The meter provides Reading / Stable / Locked prompts and locks the measurement endpoint automatically to support repeatability.

Compensation for real samples

Use ATC/MTC plus barometric compensation and salinity factor correction to maintain accuracy in non-ideal conditions.

IP65 housing for field work

Waterproof IP65 protection supports outdoor measurements and routine sampling in wet environments.

DO Concentration (mg/L)

Range: 0.00 to 20.00 mg/L
Resolution: 0.01 mg/L
Accuracy: ±0.3 mg/L
Sensor type: Polarographic
Calibration: air-saturated water or zero point
Pressure + salinity correction available

DO Saturation (%)

Range: 0.0 to 200.0%
Resolution: 0.1%
Accuracy: ±2.0%
Useful for quick interpretation in aeration and biological processes
Works with compensation settings for better real-world reporting

Temperature & Data

Temperature range: -5 to 110 °C
Resolution / accuracy: 0.1°C / ±0.2°C
Compensation: ATC, MTC
Reading modes: Auto-Read, Continuous
Storage: 200 results per parameter
Auto power-off + factory reset functions

Technical Specifications (VIKING-DO210)

Parameter	Specification	Parameter	Specification
Model	DO210E	Product number	PRO3316
Parameters	DO / Temp. (DO Saturation)	Display	LCD, 3.5″
DO sensor type	Polarographic	DO range	0.00 to 20.00 mg/L
DO resolution	0.01 mg/L	DO accuracy	±0.3 mg/L
Calibration	Air-saturated water or zero point	Barometric compensation	Yes
Salinity factor correction	Yes	Temp. compensation	ATC, MTC
DO saturation range	0.0 to 200.0%	DO saturation resolution	0.1%
DO saturation accuracy	±2.0%	Temperature range	-5 to 110 °C
Temperature resolution	0.1 °C	Temperature accuracy	±0.2 °C
Reading modes	Auto Read, Continuous	Reading prompts	Reading, Stable, Locked
Data storage	200 results each	IP rating	IP65
Power	Rechargeable lithium battery, AC adapter (100–240 V AC in / DC 5 V out)	Dimensions / weight	80 × 255 × 35 mm / 400 g

Note: For the complete technical specification sheet, open
VIKING-DO210 Technical Specifications (HTML).

Standard Delivery

Polarographic DO electrode kit PRO6162 (zero oxygen calibration solution, dissolved oxygen electrolyte, 3 pcs electrode membrane cover)
Electrode holder
Silicone rubber case
Wristbands

Exact kit contents may vary by region; please refer to the technical specification and quotation for final configuration.

VIKING DO Series — Quick Comparison

Choose the right DO meter by measurement range, data capacity and workflow. If you need help selecting the best configuration, contact COLO.Science.

Parameter	VIKING-DO210	VIKING-DO310	VIKING-DO510
DO range	0.00–20.00 mg/L	0.00–50.00 ppm	0.00–99.99 ppm
DO saturation	0.0–200.0%	0.0–300%	0.0–600%
Display	3.5″ LCD	3.5″ LCD	4.3″ color touchscreen
Data storage	200 results / param	GLP storage (up to 1000 groups)	GLP storage (1000 groups)
Protection	IP65	IP65	IP65