Apogee Instruments - MO-200: Oxygen Sensor with Handheld Meter

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The Apogee MO-200 pairs a 0 to 30 percent gaseous oxygen sensor with a handheld meter for instant spot checks of O2 in the root zone, sealed rooms, and compost. The sensor reads on a 2 m lead.Oxygen is the overlooked variable in the root zone and in CO2-enriched sealed rooms; the MO-200 makes it easy to verify O2 levels where plants and microbes compete for it.Key Features Measures 0 to 30 percent gaseous O2 with a linear voltage output Heated membrane option prevents condensation in soil, media, and compost Rugged polypropylene body, fully potted for long-term deployment in porous media Internal thermistor for temperature monitoring and signal correction Simple ambient-air calibration (atmosphere is 20.95 percent O2) Built and calibrated in Logan, Utah; NIST-traceable, made in the USA, and backed by an industry-leading 4-year warranty. Why Choose This ModelThe MO-200 is the simplest way to spot-check gaseous oxygen without wiring a sensor into a datalogger.Ideal Applications Root-zone and substrate O2 spot checks Sealed, CO2-enriched grow rooms Compost and respiration studies Show more