Portable Oxygen Monitor - Model 55

The Model 55 is a self-contained, lightweight, battery operated personal oxygen deficiency monitor. This easy to use monitor does not require any adjustments by the user other than routine calibration. The monitor reads true percent oxygen in the presence of any diluent including humidity and will not be affected appreciably by barometric pressure changes caused by elevation or weather changes. The Model 55 has a two-year sensor life.

When the percent oxygen falls below 19.5% (factory set) the large LCD digital display will be augmented by an audible alarm. The red LED also will turn on to provide visual indication of the alarm.

An external earphone (included) is available for use in noisy environments. If it is attached the alarm will wound only through the earphone.

Besides the oxygen deficiency alarm, the Model 55 also includes an alarm to indicate low battery voltage or low sensor output.

A remote sensor option is available to check confined environments for oxygen deficiency prior to entry.

Housed in a rugged, high impact enclosure, the lightweight Model 55 attaches easily to the operators belt. It does not interfere with the worker's duties.