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02-03-2015, 10:31 PM
The YSI 55 instrument is a handheld dissolved oxygen (DO) meter for field use, with a backlit LCD to enable reading in dark or dimly lit areas, and probe that is a non-detachable polarographic…
More... (http://www.kijiji.ca/v-electronics/calgary/dissolved-oxygen-sensor-used-in-water-quality-testing/1049248101)
Courtesy of www.CalgaryFinder.com
More... (http://www.kijiji.ca/v-electronics/calgary/dissolved-oxygen-sensor-used-in-water-quality-testing/1049248101)
Courtesy of www.CalgaryFinder.com