GX-3R, 4 Gas, LEL / O2 / combo H2S & CO, 72-RA-C

$595.00 $476.00

SKU: 72-RA-C Categories: , , , Tags: ,


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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, 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 it’s 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 Compensated CO sensor available Simple 2-button operation Non-Compliance Indicator Alarms: audible, visual, & vibration 3 user adjustable alarm levels Impact resistant body with removable rubber boot Large LCD Auto-backlit display 25 hours of operation (Lithium-ion battery) Field replaceable sensors & filters Water and dust resistant design, IP66/68 3 Year warranty
Personal monitoring Confined spaces Refineries/petrochemical Utilities Oil and Gas Water/Wastewater Fire Services Construction
Gas Detected (CO) H2 Compensated Carbon Monoxide(CO) Hydrogen Sulfide(H2S) H2S Only Combustible Gases (Methane as standard)
Dual Sensor
Sensor Slot 1 2
Detection Principle EC Dual EC EC Catalytic combustion
Detection Range (Increments) 0 ~ 2,000 ppm (1 ppm) 0 ~ 200.0 ppm (0.1 ppm) 0 ~ 100% LEL (1% LEL)
0 ~ 40% Vol. (0.1%)
Accuracy Statement ± 5% of reading or ± 2 ppm CO ± 5% of reading or ± 5 ppm CO (whichever is greater) ± 5% of reading or ± 2 ppm H2S (whichever is greater) ± 5% of reading or ± 2% LEL (whichever is greater)
± 5% of reading O2
Sampling Method Diffusion sampling standard (hand aspirator or clip-on motorized pump optional)
Display Digital LCD displays with 7 segment plus 14 segment plus icon
Preset Alarms (User Adjustable) Overscale alarm (Non-adjustable) 1st alarm: 25.0 ppm 2nd alarm: 50.0 ppm 3rd alarm: 1200.0 ppm TWA alarm: 25.0 ppm STEL alarm: 200.0 ppm Over alarm: 2000.0 ppm 1st alarm: 5.0 ppm 2nd alarm: 30.0 ppm 3rd alarm: 100.0 ppm TWA alarm: 1.0 ppm STEL alarm: 5.0 ppm Over alarm: 200.0 ppm 1st alarm: 10% LEL 2nd alarm: 25% LEL 3rd alarm: 50% LEL Over alarm: 100% LEL
Types of Alarms Gas Alarm: 3 Increasing alarms, STEL, TWA, overscale alarm. O2 decreasing/increasing. Trouble alarm: Sensor disconnection, low battery, circuit error, calibration range error
Display of Alarm Gas Alarm: Flashing LEDs, continuous buzzer (100 db @ 30 cm), flashing gas value, vibration Trouble alarm: Flashing LEDs, intermittent buzzer (95 db @ 30 cm), display of error message
Operating Temp. & Humidity -20°C ~ +50°C [ -4°F ~ +122°F ], 10 to 90% RH, non-condensing (continuous environment) -40°C ~ +60°C [ -40°F ~ +140°F ], 0 to 95% RH, non-condensing (temporary environment, 15 minutes)
Response Time Within 30 seconds (T90)
Power Source Lithium-ion battery, Approx. 25 hours after a 3 hour full charge
Approvals ATEX, CSA
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
Case Material Explosion proof, dust and water resistant to IP-66/68 (2m,1h) approval. Drop height 23 ft
Controls Two buttons: POWER / MODE, AIR
Datalogging Logs user ID, station ID, Calibration & Bump Test history, Alarm Events & Alarm Interval Trends
Standard Accessories Alligator clip, protective rubber boot, charger, and calibration adapter
Optional Accessories 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
Warranty Three years material and workmanship

Additional information

Weight 1 lbs