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Me2-o2 Me2-o2-20 Gas Sensors Oxygen Sensor O2 Gas Sensor Detector( Me3-o2 Updated Version) - Sensors - AliExpress
Air contains 20 percent O2 by volume. How many cc of air will be required for oxidation of 100 cc of acetylene.
CTI GG-O2-C0-DM Gas Sensor 0-25% Oxygen 4/20 mA Output