The Salter PRO2 Check Elite Oxygen Concentration Indicator accurately indicates the O2 percentage, output pressure, and output flow from concentrators. It makes it easy to check the quality of oxygen, connecting to concentrators with standard tubing and presenting results clearly on LCD display. Includes three operation modes: pressure (measured in PSIG or kPa), flow (measured in LPM), and oxygen concentration (measured in percent) Calibrated out of box; calibration is not affected by temperature or altitude to ensure accuracy Connects to concentrator with standard oxygen supply tubing Easy-to-read LCD display Operates on 9 volt battery Automatically shuts off after 5 minutes to preserve battery Compact and portable; comes with carrying case
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