The GX-3R is the world's 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, CO (Hydrogen compensated CO also available), and H2S.
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 its resistance to silicone poisoning. If one filament gets poisoned the second filament takes over. The new O2 sensor is electrochemical with a 3 to 5 year life span. H2S and CO are now available in a combo micro sensor.
Smallest & lightest 4 gas monitor
2.2″ W x 2.55″ H x 1.02″ D, 3.52 ounces
Simultaneous detection of 4 gases: LEL, O2, H2S & CO H2
Lithium-ion battery, Approx. 25 hours after a 3 hour full charge
Dimension & Weight
2.2” W x 2.55” H x 1.02” D (Approx. 58 W x 65 H x 26 D mm), 3.52 ounces (approx. 100 g) without rubber booth 2.4” W x 2.63” H x 1.06” D (Approx. 61 W x 67 H x 27 D mm), 3.70 ounces (approx. 105 g) with rubber booth
Explosion proof, dust and water resistant to IP-66/68 (2m,1h) approval. Drop height 23 ft
Two buttons: POWER / MODE, AIR
Logs user ID, station ID, Calibration & Bump Test history, Alarm Events & Alarm Interval Trends
Alligator clip, protective rubber boot, charger, and calibration adapter
SDM-3R calibration station RP-3R Clip-on sampling pump with 4” rubber nipple, 10’ hose and probe (up to 40’ hose available) Padded carrying case for GX-3R and accessories USB to IrDA downloading cable for datalogger