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    GX-3R Pro Gas Detector with Wireless Communication

    Confined Space 5 Gas Monitor

    Features

    • Smallest & lightest detector
      2.9″ W x 2.6″ H x 1.06″ D , 4.58 ounces

    • Detect up to 5 gases simultaneously
      Confined Space: LEL, O2, H2S, CO
      – Toxics: HCN, NO2, PH3, SO2 & CO2
      – H2 Compensated CO sensor

    • Simple 2-button operation

    • Bluetooth communication with iOS & Android App

    • Non-Compliance Indicator

    • 3 user adjustable alarm levels

    • Panic Alarm

    • Man Down Alarm

    • Impact resistant body

    • Large full dot, auto-backlit display with auto-rotation

    • Stealth mode for law enforcement

    • Field replaceable sensors & filters

    • Water and dust resistant design, IP66/68

    • 3 Year Warranty Instrument and Sensors*

    Contact RKI Sales

    Description

    GX-3R Pro Five Gas Monitor callouts

    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 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.

    RKI is pleased to announce the availability of  These 2 sensors are in stock and are the latest in toxic gas options added to the line of GX-3R Pro sensors.

    The GX-3R Pro comes equipped with Bluetooth wireless communication, 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 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.

    *Three years warranty material and workmanship including sensors (1 year for Ammonia and Chlorine sensors)

     

    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% LEL3rd: 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
    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 + 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)
    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
    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

    Application

    • Personal monitoring
    • Confined spaces
    • Refineries/petrochemical
    • Utilities
    • Oil and Gas
    • Water/Wastewater
    • Fire Services
    • Construction

    Specifications

    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
    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 + 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)
    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
    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

    Parts

    GX-3R Pro Spare Parts

    Part # Description
    07-6054 Sensor gasket, GX-3R Pro
    07-6055 Sensor case o-ring, GX-3R Pro
    10-1086 Screw with flat and lock washers, M2 x 4 phillips
    10-1087 Screw for GX-3R Pro sensor cap & battery pack
    13-0112RK Wrist strap
    13-0124 Alligator Clip with installation screws
    13-0125 Belt Clip with installation screws
    20-0335 Rubber boot for GX-3R Pro
    21-1950 LCD protective film for GX-3R/GX-3R Pro
    21-1960 Bottom cover (sensor cap), GX-3R Pro
    21-1961 Sensor retainer, GX-3R Pro
    29-0700 Sensor case label for GX-3R Pro, CO/H2S / LEL /O2 /Toxic
    33-0184-10 Sensor dust filters with internal gasket for GX-3R Pro, 10-pack
    33-0554 Buzzer protection cover for GX-3R Pro
    33-7130 Scrubber disk filter for H2S/CO sensor 5-pack
    33-7131 Scrubber disk filter for LEL sensor, 5-pack
    33-7132 Scrubber disk filter, charcoal, for CO & H2 comp CO sensor, GX-3R/GX-3R Pro, 5-pack
    33-7133 Humidity filter disk for H2S sensor, GX-3R/GX-3R Pro, 5-pack
    33-7134 H2S scrubber disk for SO2 sensor, GX-3R Pro, 5-pack
    49-1625 Li-Ion battery pack for GX-3R Pro
    49-1626 Alkaline battery pack for GX-3R Pro
    ESR-A13D-SO2 Sensor, SO2 for GX-3R Pro
    ESR-A13I-H2S Sensor, H2S for GX-3R/GX-3R Pro
    ESR-A13P-CO Sensor, CO, GX-3R/3R Pro
    ESR-X13P-OXY Sensor, O2 for GX-3R/GX-3R Pro
    ESR-A1CP-CO-H Sensor, CO with H2 compensated for GX-3R/GX-3R Pro
    ESR-A1DP-COHS Sensor, H2S/CO combo for GX-3R/GX-3R Pro
    NCR-6309 Sensor, LEL for GX-3R/GX-3R Pro
    IRR-0409 Sensor, CO2, 0-10% volume for GX-3R Pro
    IRR-0433 Sensor, CO2, 0-10,000 ppm for GX-3R Pro

    Video

    This video is also available on YouTube and CD (by request)

    Downloads

    GX-3R Pro Software

    download
    Datalogging Software (version 06228)
    download
    IrDa Reprograming Instructions (step by step procedure)

    Literature & Manuals

    GX-3R Pro datasheet

    GX-3R Pro Product Datatsheet

    GX-3R quick reference card

    GX-3R (Pro) Quick Reference Card


    GX-3R Pro manual
    GX-3R Pro Manual

    GX-3R datalogging manual
    GX-3R (Pro) Datalogging Manual

    Distributor Resources

    GX-3R Pro Price List & Resources
    Sensor Specifications