PORTABLE GAS DETECTION

Personal O2 Monitor Model 55

Oxygen (O2) deficiency Monitor Sierra Monitor’s Model 55 is a portable, self-contained, lightweight, battery-operated personal Oxygen (O2) deficiency monitor. Model 55 is an easy-to-use monitor that does not require any adjustments by the user other than routine calibration.

The monitor reads true oxygen percentage in the presence of any diluent, including humidity. The Personal O2 Monitor Model 55 will not be considerably affected by barometric pressure changes caused by elevation or weather changes. When Oxygen percent falls below 19.5%, the large LCD digital display will be augmented by an audible alarm. The red LED will also turn on to provide visual indication of oxygen deficiency. Besides the Oxygen deficiency alarm, the Model 55 also includes an alarm to indicate low battery voltage or low sensor output.

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