Portable DO meters are lightweight instruments designed for fast and accurate dissolved oxygen measurements in the field or laboratory. They are widely used in aquaculture, environmental monitoring, wastewater treatment, food quality control, and education. A portable DO meter combines precision with mobility, offering digital calibration, clear displays, and durable probes. These devices deliver immediate results, helping users maintain water quality and ensure safe processes. COLO.Science provides high-quality portable DO meters that meet international standards and support reliable testing both outdoors and in laboratories.
Portable DO Meters
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	Portable DO MetersVIKING-DO511 Touch screen Portable DO MeterDO/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
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	Portable DO MetersVIKING-DO510 Touch screen Portable DO MeterDO/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
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	Portable DO MetersVIKING-DO310 Touch screen Portable DO MeterDO/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
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	Portable DO MetersVIKING-DO210 Portable DO MeterReliable-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



 
				


