RKI GX-3R Confined Space Monitor
Operation Manual
Specifications Sheet

ItemDailyWeeklyMonthly
RKI GX-3R Muli-Gas Personal Monitor (LEL/O2/H2S/CO) $41.25 $96.25 $275

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). It simultaneously monitors and displays LEL combustibles, O2,  H2S and CO (Hydrogen compensated CO also available).

The GX-3R represents the latest evolution of gas detection technology utilizing a new generation of micro sensors. The LEL sensor has a unique design with two active filaments in one sensor to increase it’s resistance to silicone poisoning. If one filament gets poisoned the second filament takes over. H2S and CO are now available in a combo micro sensor.  

The instrument flashes it’s 3 LED lights every 30 seconds in the following conditions; if the instrument has not been bump tested, or if calibration is due, or if there was a gas alarm event. The 3 LED lights will continue to flash once every 30 seconds until the non-compliance condition has been resolved. The 30 second interval is adjustable.