COLO.Science · Technical Specification

VIKING-DO210

Portable DO Meter · DO/Temp. (DO Saturation) · Polarographic · IP65

Portable dissolved oxygen meter for field and laboratory measurements with polarographic DO sensing. Supports DO concentration (mg/L), DO saturation (%) and temperature with a 3.5″ LCD display. Measurement workflow supports Auto Read and Continuous modes, with Auto-Hold endpoint locking. Includes GLP-style data storage (200 results per parameter), ATC/MTC, support for air-saturated water or zero oxygen calibration, manual barometric pressure compensation and manual salinity factor correction. Robust IP65 waterproof housing supports outdoor and field measurements.

DO 0.00–20.00 mg/L DO SAT 0.0–200% TEMP -5 → 110°C POLAROGRAPHIC 3.5″ LCD ATC / MTC DATA 200 IP65

Document type: Technical Specification Sheet
Format: Landscape (Word/Outlook-ready)

VIKING-DO210 portable dissolved oxygen meter

Instrument

VIKING-DO210 · COLO.Science

Address (HQ)

Polje ob Sotli 4
SI-3255, Slovenia

Contact

Email: sales@colo.si
Phone: +386 64 222 724

VIKING-DO210 · Technical Specification

Document ID: COL-TEC-VIKING-DO210-EN
Version: Landscape
Informational technical sheet · Non-binding · Controlled electronic document

VIKING-DO210 · Portable DO Meter technical specification sheet

DO 0.00–20.00 mg/L DO SAT 0.0–200% TEMP -5 → 110°C POLAROGRAPHIC 3.5″ LCD IP65 — Auto-Hold / Auto Read + Continuous / manual pressure & salinity correction

General & performance specifications

instrument identity
instrument	VIKING-DO210
model	DO210E
product number	PRO3316
parameters	DO / Temp. (DO Saturation)
display	LCD display screen, 3.5″
general features (workflow)
multi-reading	Auto Read, Continuous
auto-hold	Yes (senses and locks the measurement endpoint)
temp. compensation	Automatic / Manual temperature compensation (ATC, MTC)
data capacity	200 results for each parameter
auto power-off	Yes (extends battery service life)
reset	Factory default restore
IP rating	IP65 waterproof
dissolved oxygen concentration (DO)
sensor type	Polarographic
range	0.00 to 20.00 mg/L
resolution	0.01 mg/L
accuracy	±0.3 mg/L
calibration points	Air-saturated water or zero point
barometric compensation	Yes (manual)
manual salinity factor correction	Yes
DO saturation
range	(0.0 to 200.0)%
resolution	0.1%
accuracy	±2.0%
temperature
range	-5 to 110 °C
unit	°C
resolution	0.1 °C
accuracy	±0.2 °C
measurement workflow & data
reading prompts	Reading, Stable, Locked
data management	Data storage: 200 results each
temp. compensation	ATC, MTC
inputs, outputs & protection
DO with temp. probe input	4-pin aviation connector
backlight	Yes
auto shutdown	300, 600, 1200, 1800, 3600 sec., off
IP rating	IP65
power & physical
power	Rechargeable lithium battery, AC adapter (100–240 V AC input, DC 5 V output)
dimensions	80 × 255 × 35 mm
weight	400 g (0.88 lb)

Key instrument features

3.5″ LCD display	Clear screen for field operation with Reading/Stable/Locked prompts.
Reading modes	Auto Read and Continuous for routine DO monitoring.
Auto-Hold endpoint	Senses and locks the measurement endpoint to reduce user variability.
Compensation tools	ATC/MTC, manual barometric pressure compensation, manual salinity factor correction.
Data capacity	Up to 200 results stored for each parameter (DO / % saturation / temperature).
IP65	Waterproof housing suitable for outdoor and field measurements.

Typical applications

field dissolved oxygen checks (rivers, lakes, reservoirs)

aquaculture and fisheries monitoring (DO and % saturation control)

wastewater and process water monitoring

environmental and municipal water laboratories

spot checks and verification in QC workflows

Included / typical delivery (reference)

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

Options & notes

calibration practice	Use air-saturated water for routine calibration; use a zero point when SOP/validation requires.
pressure & salinity	Apply manual pressure compensation and salinity correction for more reliable reporting across conditions.
power management	Use Auto Power-Off to extend battery service life during fieldwork.
configuration notice	Final delivered configuration may vary by region and quotation package; specifications may change without notice.

Practical operation notes

topic	recommendation	note
probe preparation	Inspect membrane condition and electrolyte level before logging results.	Polarographic probes require correct membrane/electrolyte condition for stable results.
calibration	Calibrate with air-saturated water for routine use; apply zero oxygen calibration when required.	Supports air-saturated water or zero point calibration.
compensation	Use ATC (or MTC when needed); apply manual pressure and salinity correction for best accuracy.	Pressure and salinity influence DO and % saturation calculations.
data management	Store results (200 per parameter) and log stable endpoints using Auto-Hold.	Reading prompts (Reading/Stable/Locked) support consistent field sampling.

Contact & Support

Headquarters address

Polje ob Sotli 4

SI-3255, Slovenia

Application guidance: tell us your environment (freshwater, wastewater, process water, aquaculture), the required reporting format (mg/L, % saturation, or both) and typical temperature range. We will propose the optimal configuration and accessories for your workflow.

Quick contact

Web: colo.si

PDF Tech Spec: VIKING-DO210.pdf

Email: sales@colo.si

Phone: +386 64 222 724

Knowledge hub: COLO.Science

Manufacturer & configuration notice (important):
Specifications in this document are provided for general reference and may represent a typical configuration. COLO.Science reserves the right to change technical specifications without notice.

For procurement and tender purposes, the only valid and binding specification is the official COLO.Science quotation and the accompanying technical specification that is engineering-approved.