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The GX-3R Pro is the world’s smallest 5-gas monitor weighing only 4.58 ounces and fits in the palm of your hand (2.9” W x 2.6” H x 1.06” D). 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 sensors. Two of the four sensor slots have interchangeable sensors providing flexible configurations, which can easily be changed in the field.
The GX-3R Pro comes equipped with Bluetooth wireless communication, a man-down alarm, the choice of alkaline or rechargeable power supply, and a 3-year warranty. The Lithium-ion battery pack will operate for 25 hours and will fully charge in 3 hours.
| Number Of Gases | 5 Gas |
|---|---|
| Type Of Gas | Lower Explosive Limit (LEL), Sulphur Dioxide, Hydrogen Sulphide, Carbon Monoxide, Oxygen |
| Brand | RKI Instruments |
| Available Outside the UK? | Yes |
The GX-3R Pro is the world’s smallest 5-gas monitor weighing only 4.58 ounces and fits in the palm of your hand (2.9” W x 2.6” H x 1.06” D). 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 sensors. Two of the four sensor slots have interchangeable sensors providing flexible configurations, which can easily be changed in the field.
The GX-3R Pro comes equipped with Bluetooth wireless communication, a man-down alarm, the choice of alkaline or rechargeable power supply, and a 3-year warranty. The Lithium-ion battery pack will operate for 25 hours and will fully charge in 3 hours.
The GX-3R Pro utilizes Bluetooth communication to display direct gas readings from the instrument to a phone app, which is available free on either iOS or Android phones. Automatic notifications can be programmed to send a text or email messages if there is an alarm event from the GX-3R Pro.
Safety supervisors will appreciate the non-compliance indicator. 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.
| 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 |
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| 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 | |||||
| SO2 | EC | 0 ~ 100.0 ppm (0.05 ppm) |
± 10% of reading or ± 5 % of full scale |
A1: 2 ppm│ A2: 5 ppm A3: 100 ppm│ TWA: 0.25 ppm STEL: 0.25ppm |
|
| *CO2 IR sensor available AUG 2019 | |||||
| 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 |
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| Common Specifications | ||||
| Sampling Method | Diffusion sampling standard (hand aspirator or clip-on motorized pump optional) |
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| Display | Full dot LCD with Autobacklight and Autorotation |
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| Alarm Types | Gas Alarm | Trouble Alarm | ||
| • 2 increasing alarms • STEL • TWA • Overscale alarm • O2 decreasing/ increasing |
• Sensor disconnection • Low battery • Circuit error • Calibration range error • Cal or bump due alarm |
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| • Man Down Alarm • Panic Alarm |
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| 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 |
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| Operating Temp. & Humidity | -20°C ~ +50°C [ -4°F ~ +122°F ] 10 to 90% RH, non-condensing (continuous environment) |
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| -40°C ~ +60°C [ -40°F ~ +140°F ] 0 to 95% RH, non-condensing (temporary environment) |
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| Response Time | Within 30 seconds (T90) | |||
| Power Source | Config | Li-ion | Alkaline | |
| 4-gas + EC | 25 hours | 16 hours | ||
| 4-gas + IR | 16 hours | 7 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) |
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| Case Material | Explosion proof, 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 |
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| 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 |
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| Safety Design / Approvals | ATEX, CSA (Pending) | |||
| Warranty | Three years material and workmanship including sensors | |||
| *specifications subject to change | ||||
