The new O2 sensor is electrochemical with a 5 year life span. If one filament gets poisoned the second filament takes over. The LEL sensor has a unique design with two active filaments in one sensor to increase it’s resistance to silicone poisoning. The GX-3R represents the latest evolution of gas detection technology utilizing a new generation of micro sensors. It simultaneously monitors and displays LEL combustibles, O2, CO (Hydrogen compensated CO also available), and H2S. The GX-3R is the worlds smallest 4 gas monitor weighing only 3.52 ounces and can comfortably be clipped within a worker's breathing zone (2.2” W x 2.55” H x 1.02” D). Now there is a 4 gas monitor smaller than many single gas monitors. Traditionally this means only a single gas monitor would be small enough for a worker to practically wear a gas monitor ‘In the breathing zone’. Air sampling filters may be attached to the collar or lapel. OSHA defines the breathing zone as a ten inch radius around the worker's nose and mouth, and requires that worker exposure monitoring air samples be collected in the breathing zone.
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