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The GX-3R Pro Gas Detector with Wireless Communication It simultaneously monitors and displays 5 different gases. In addition to monitoring standard confined space gases, LEL, O2, CO, & H2S, the GX-3R Pro has a 5th channel where you can add infrared or toxic gas sensors (Hydrogen Cyanide (HCN) and Nitrogen Dioxide (NO2) sensors are currently available for the GX-3R Pro). Two of the four sensor slots have interchangeable sensors providing flexible configurations, which can easily be changed in the field.
Detectable Gases | | Gas | Measuring Range
(Increments) | Accuracy
Statement | Preset Alarms | | Sensor Slot 1: Carbon Monoxide (CO) & Hydrogen sulfide (H2S) *Interchangeable | | H2S / CO | Dual EC | 0 ~ 2000 ppm
(1 ppm) | ± 5% of reading
or ± 5 ppm CO | A1: 25 ppm│ A2: 50 ppm │ A3:1200 ppm│TWA: 25 ppm │ STEL: 200 ppm | 0 ~ 200.0 ppm
(0.1 ppm) | ± 5% of reading
or ± 2 ppm H2S | A1: 5 ppm│ A2: 30 ppm │ A3: 100 ppm│TWA: 1.0 ppm │ STEL: 5.0 ppm | H2S
Only | EC | 0 ~ 200.0 ppm
(0.1 ppm) | ± 5% of reading
or ± 2 ppm H2S | A1: 5 ppm│ A2: 30 ppm │ A3: 100 ppm│TWA: 1.0 ppm │ STEL: 5.0 ppm | CO
H2 Compensated | EC | 0 ~ 2,000 ppm | ± 5% of reading
or ± 2 ppm CO | A1: 25 ppm│ A2: 50 ppm │ A3: 1200 ppm│TWA: 25 ppm │ STEL: 200 ppm | | Sensor Slot 2: Combustibles (Methane as standard) | | CH4 / HC | Catalytic | 0 ~ LEL (1% LEL) | ± 5% of reading
or ± 2 % LEL | 1st: 10% LEL │ 2nd: 25% LEL │ 3rd: 50% LEL │ Over:100% LEL | | Sensor Slot 3: Oxygen (O2) | | O2 | EC | 0 ~ 40.0% Vol.
(0.10%) | ± 0.5% O2 | Low 1: 19.5%│ Low 2: 18.0% │High: 23.5%│ Over: 40.0% | | Sensor Slot 4: Toxics & CO2 *Interchangeable | | HCN | EC | 0 ~ 30.0 ppm
(0.1 ppm) | ± 10% of reading
or ± 5 % of full scale | A1: 5.0 ppm│ A2: 10.00 ppm │ A3: 30.00 ppm│ TWA: 4.7 ppm
│ STEL: 10 ppm | | NH3 | 0 ~ 400.0 ppm
(0.5 ppm) | A1: 25.0 ppm │ STEL: 1.0 ppm│
A2: 35.0 ppm│ TWA: 0.30 ppm│A3: 300.0 ppm | | NO2 | 0 ~ 20.00 ppm
(0.05 ppm) | A1: 2.00 ppm│ A2: 4.00 ppm │ A3: 20.00 ppm│ TWA: 0.20 ppm │ STEL: 1.00 ppm | | PH3 | 0 ~ 20.00 ppm (0.01 ppm) | A1: 0.30 ppm │ STEL: 1.0 ppm │ A2: 0.60 ppm │ TWA: 0.30 ppm │ A3: 0.60 ppm | | SO2 | 0 ~ 100.0 ppm
(0.05 ppm) | A1: 2 ppm│ A2: 5 ppm │ A3: 100 ppm│ TWA: 0.25 ppm │ STEL: 0.25ppm | | CO2 % | IR | 0 ~ 10.0% Vol.
(0.01%) | ± 5% of reading
or ± 2 ppm | A1: 0.50% Vol.│ A2: 3.00% Vol. │ A3: 4.00% Vol.│ TWA: 0.50% Vol. │ STEL: 3.00% Vol. | | CO2 ppm | 0 ~ 10,000 ppm
(20 ppm) | A1: 5,000 ppm│ A2: N/A │ TWA: N/A│STEL: N/A |
Common Specifications | | Sampling Method | Diffusion sampling standard
(hand aspirator or clip-on motorized pump optional) | | Display | Full dot LCD with Autobacklight
and Autorotation | | Alarm Types | Gas Alarm | Trouble Alarm | - 2 increasing alarms
- STEL
- TWA
- Over scale alarm
- O2 decreasing/
increasing
| - Sensor disconnection
- Low battery
- Circuit error
- Calibration range error
- Cal or bump due alarm
| • Man Down Alarm
• Panic Alarm | | Display of Alarm | Gas Alarm | Trouble Alarm | - Flashing LED’s
- Continuous buzzer (100 db @ 30cm)
- Flashing gas value
- Vibration
| - Flashing LED’s
- Intermittent buzzer (95 db @ 30cm)
- 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) | | Response Time | Within 30 seconds (T90) | | Power Source | Config | Li-ion | Alkaline | | 4-gas + EC | 25 hours | 16 hours | | 4-gas + EC with Bluetooth | 23 hours | 14 hours | | 4-gas + IR | 16 hours | 7 hours | | 4-gas + IR with Bluetooth | 15 hours | 6 hours | | Dimension & Weight | 2.9” W x 2.6” H x 1.06” D
(Approx. 73 W x 65 H x 26 D mm), 4.58oz (with rubber boot) | | Case Material | Dust and water resistant to IP-66/68 (2m,1h) approval. Drop height 23 ft | | Bluetooth Communication | BLE: with iOS and Android phone app: RK Link | | Datalogging | Logs user ID, station ID, Calibration & Bump Test history, Alarm Events &
Alarm Trends | | Standard Accessories | Alligator clip, protective rubber boot, charger, calibration adapter | | Optional Accessories | - Padded carrying case
- RP-3R Attachable sampling pump with 4” rubber nipple, 10’ hose and probe (up to 40’ hose available)
- USB to IrDA downloading cable for datalogger
- SDM-3R calibration station
- Hand aspirator
| | Safety Design / Approvals | ATEX, CSA | | Warranty | Three years material and workmanship including sensors (1 year for Ammonia sensor) |
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Features
- Smallest & lightest detector
- Detect up to 5 gases simultaneously
– Confined Space: LEL, O2, H2S, CO
– Toxics/IR Sensors: HCN, NH3, NO2, PH3, SO2, and CO2
– H2 Compensated CO sensor available
- Simple 2-button operation
- Bluetooth communication with iOS & Android App
- 3 user adjustable alarm levels
- Panic Alarm & Man Down Alarm
- Large full dot, auto-backlit display with auto-rotation
- Field replaceable sensors & filters
- Water and dust resistant design, IP66/68
- 3 Year Warranty*
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