DO meters (dissolved oxygen meters) are essential instruments for measuring oxygen levels in water and liquid samples. They are widely used in environmental monitoring, aquaculture, wastewater treatment, food and beverage industry, and laboratory research. A DO meter provides accurate and fast readings of dissolved oxygen, helping users ensure water quality and process safety. Available as benchtop and portable versions, these devices combine digital calibration, clear displays, and durable sensors. COLO.Science offers high-quality DO meters that meet international standards and deliver reliable results for both field and laboratory use.
DO Meters Categories
DO Meters
Showing all 7 results
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Portable DO Meters
VIKING-DO210 Portable DO Meter
Reliable-Durable
ATC
Auto-Read, Continuous read
Reading Prompts
200 groups data sets
IP54
Polarographic
DO Range 0.00 ~ 20.00 mg/L , Accuracy ±0.3mg/L
DO Saturation Range (0.0 ~200.0)% , Accuracy±2.0%
Temp. Range -5.0 ~ 110 ºC, 23.0 ~ 230 ºF , Accuracy ±0.2More information at Colo Science
SKU: PRO3316 -
Portable DO Meters
VIKING-DO310 Touch screen Portable DO Meter
DO/Temp.(DO Saturation)
Accurate-Powerful
1000 groups data sets
Print, PC
Polarographic
DO Range 0.00 ~ 50.00 mg/L ,
Accuracy ±0.1mg/L
DO Saturation Range (0.0 ~ 300.0)% , Accuracy±2.0%
Temp. Range
-5.0 ~ 110 ºC, 23.0 ~ 230 ºF ,
Accuracy ±0.2More information at Colo Science
SKU: PRO3164 -
Portable DO Meters
VIKING-DO510 Touch screen Portable DO Meter
DO/Temp. (DO Saturation)
Professional-Smart
Touchscreen
1000 groups data sets
Print, PC, Scan gun
Polarographic
DO Range 0.00 ~ 99.99 mg/L ,
Accuracy
±0.3mg/L (0.00 ~ 20.00 mg/L);
±10% (20.00 ~ 99.99 mg/L)
DO Saturation Range
(0.0 ~ 600.0)% , Accuracy±2.0%
Temp. Range
-10 ~ 135 ºC, 14 ~ 275 ºF ,
Accuracy ±0.1More information at Colo Science
SKU: PRO4953 -
Portable DO Meters
VIKING-DO511 Touch screen Portable DO Meter
DO/Temp. (DO Saturation)
Professional-Smart
Touchscreen
1000 groups data sets
Print, PC, Scan gun
Optical
DO Range 0.00 ~ 20.00 mg/L ,
Accuracy
±0.3mg/L (0.00 ~ 20.00 mg/L)
DO Saturation Range
(0.0 ~ 200.0)% ,
Accuracy±10.0%
Temp. Range 0 ~ 50 ºC ,
Accuracy ±0.2More information at Colo Science
SKU: PRO2427 -
