by Fmeaddons


    Multi Gas Detector


    • Monitors ppm LEL, % volume methane, O2, CO and H2S
    • 0 to 100% volume methane option
    • Auto-ranging display of % LEL and % volume
    • 3 Operating modes: Normal, leak check, & bar hole
    • PPM leak detector
    • Adjustable display ranges
    • Visual / audible pulses change with gas concentration
    • CO display in leak check mode
    • Barhole test mode for underground leak checks
    • Internal sample drawing pump with up to 50'
    • Vibration, visual, and audible alarms
    • Automatic backlight during alarms
    • Lithium ion or alkaline battery packs (interchangeable)
    • Intrinsically safe, ATEX/IECEx/CE or CSA/CE (Optional)

    Contact RKI Sales


    With the GX-2012, you have multiple tools in one instrument. Having 3 operating modes, the GX-2012 can be used for confined space, safety monitoring in it’s Normal Operating mode; for leak investigation in Leak Check mode; and for underground leak checking in Bar Hole mode. When equipped with an optional TC sensor, the GX-2012 can measure 100% volume methane and dynamically auto range from % LEL to % volume. This is ideal for line purge testing.

    Built around high-quality micro-sensor technology, the GX-2012 is RKI’s smallest personal 1-5 sensor gas monitor with a built in sample pump. Weighing only 12.3 ounces, the GX-2012 can monitor the standard confined space gases (LEL combustibles, Oxygen content, Carbon Monoxide, and Hydrogen Sulfide).

    The GX-2012’s large LCD display shows all gas readings, battery level, current time, and will automatically backlight in alarm conditions. Standard alarm types include vibration, visual, and audible alarms, which can be set to latching or non-latching. Controlled by a microprocessor, the GX-2012 continuously checks itself for sensor connections, low battery, circuit trouble, low flow, and calibration errors. The GX-2012 can interchangeably operate on either a Li-ion battery pack or an alkaline battery pack. The batteries are simple to replace requiring no tools to access the removable battery compartment or pack.


    • Personal monitoring
    • Confined space entry
    • Refineries / petrochemical
    • Chemical plants
    • Hazardous material
    • Water / wastewater treatment
    • Fire services
    • Mining


    Gas Detected
    Combustible Gases
    (Methane as standard)
    % Volume
    Oxygen (O2)
    Hydrogen Sulfide (H2S)
    Carbon Monoxide (CO)
    Detection Principle
    Catalytic combustion
    Thermal conductivity
    Galvanic cell
    Electrochemical cell
    Detection Range
    0 ~ 100% LEL
    0 ~ 500 / 1,000 / 2,000 / 5,000 ppm
    0 ~ 100% Vol.
    0 ~ 40% Vol.
    0 ~ 100 ppm
    0 ~ 500 ppm
    Accuracy Statement
    (whichever is greater)
    ± 5% of reading or
    ± 2% LEL (LEL mode only)
    ± 5% of reading or ± 2% of full scale
    ± 0.5% O2
    ± 5% of reading or ± 2 ppm H2S
    ± 5% of reading or ± 5 ppm CO
    Sampling Method
    Internal sample pump, flow rate nominal 0.5 LPM, includes hydrophobic filter
    Digital LCD with 7 segments, auto backlight during alarm
    Preset Alarms
    (User Adjustable)
    1st alarm 10% LEL
    2nd alarm 50% LEL
    Over alarm 100% LEL
    No alarms for
    % Vol. CH4
    Low alarm 19.5% High alarm 23.5% Over alarm 40.0%
    1st 5 ppm
    2nd 30 ppm
    TWA 10 ppm
    STEL 15 ppm
    Over 100 ppm
    1st 25 ppm
    2nd 50 ppm
    TWA 25 ppm
    STEL 200 ppm
    Over 500 ppm
    Alarms Types Gas alarms: 1st and 2nd, STEL, TWA (user adjustable) and OVER
    Trouble alarms: Sensor connection, low battery, low flow, circuit trouble and calibration error
    Alarm Methods Gas alarms: Flashing lights, two tone buzzer, and vibration
    Trouble alarms: Flashing lights, trouble displayed, intermittent buzzer, and vibration
    Operating Temp. & Humidity -20°C to +50°C (-4°F to 122°F)
    0 to 95% RH, non-condensing
    Response Time Within 30 seconds (T90)
    Continuous Operation Alkaline battery: 15 hours Li-Ion battery: 10 hours
    70°F (21°C)
    Power Source Li-Ion battery pack, or 3 “AA” Alkaline battery pack; interchangeable
    Safety Rating ATEX, TIIS, IECEx, and CE or optionally: CSA classified as intrinsically safe. Class I, Division 1, Groups A, B, C, D, and CE
    Note: Either ATEX (USA and worldwide) or CSA (Canada) version must be specified when ordering.
    Dimension & Weight Approx. 143 (H) x 71 (W) x 43 (D) mm (5.6” H x 2.8” W x 1.6” D), approx. 350 g (12.3 ounces)
    Case Material High dust & water resistant design. RFI shielded high impact plastic with protective rubber overmolding
    Controls Five buttons: POWER / ENTER, DISPLAY, AIR, RESET, SHIFT
    Standard Accessories • Belt clip • Rubber nozzle, 3.5” • Datalogging software
    • 10” Probe • Manual • Quick reference card
    • 10’ Hose • Training CD
    Optional Accessories • SDM-2012 calibration stations • Calibration kit
    • Li-Ion battery pack • AC or DC Charger
    • Sample draw hoses (10’ standard, • Carrying case
    up to 50’ max. available)
    Configurations 1, 2, 3, 4, or 5 sensor units
    Li-Ion or alkaline battery pack options
    Warranty Two years material and workmanship


    GX-2012 Spare Parts

    GX-2012 Spare Parts

    Part # Description
    1. 17-1001RK Tapered rubber inlet nozzle, 4”, RP-6 / GX-2003 / GX-2012 / Gas Tracer
    2. 21-1833RK Filter holder, clear plastic, GX-2003
    3. 33-1031RK Cotton balls, filters for probe, bag of 25
    4. 33-0159RK Teflon filter disc, 10 pieces, RP-6 / GX-2003
    5. 33-1112RK Wire mesh disk filter, RP-6 / GX-2003 / GX-2012, 10 pack
    6. 21-1890RK Top cover assembly, GX-2012 / Gas Tracer
    7. 30-0022RK Pump replacement for GX-2012 and RP-2009, with cable and connector
    8. 21-1889RK Main case assembly, GX-2012
    9. 07-6024RK Battery pack gasket, GX-2012 / Gas Tracer
    10. 07-6025RK Main case gasket, GX-2012 / Gas Tracer
    11. 51-1125RK LCD display, GX-2012 / Gas Tracer
    12. 57-2043RK CPU PC board assembly, GX-2012
    13. 49-1406RK Battery, lithium, CR 1220, for main PCB, GX-2012 / Gas Tracer
    14. 30-1053RK Vibration motor, GX-2003 / GX-2012 / Gas Tracer
    15. 10-1090RK Tap tight screw M2x4.5 mm, phillips self-tapping
    16. 57-2041RK Sensor PC board assembly, GX-2012
    17. 07-6026RK Sensor gasket, GX-2012 / Gas Tracer
    18. 33-7114RK Filter disk, H2S scrubber, 5 pack, for combustible diffusion port
    19. 33-7102RK Filter, charcoal, for CO sensor, pack of 5 GX-2009 / GX-2012 / Gas Tracer / GX-2001
    20. 21-1892RK Sensor cap assembly, GX-2012
    21. 13-0118RK Belt clip, GX-2012 / Gas Tracer
    22. 49-1615RK Batter pack, lithium ion, GX-2012 / Gas Tracer
    23. 49-1616RK-01 Alkaline Battery pack cover with gasket, GX-2012 / Gas Tracer
    24. 49-1616RK-02 Alkaline Battery pack without cover with gasket, GX-2012 / Gas Tracer
    25. 13-0112RK Wrist strap
    26. 10-1108RK Screw M2 x 16
    27. 10-1093RK Screw M2 x 6 SUS304
    28. 10-1091RK Screw M2 x 5 SUS
    29. 10-1092RK Truss screw M2 x 5
    30. OS-BM2 O2 sensor OS-BM2
    31. NC-6264A

    NC-6264B (CSA version)

    LEL sensor (non CSA)
    LEL sensor for GX-2012 CSA
    32. ES-1821 CO sensor ES-1821
    33. ES-1827I H2S sensor ES-1827I
    34. TE-7561 VOL sensor TE-7561
    35. SH-8641 PPM sensor SH-8641, Gas Tracer
    36. 49-1616RK Alkaline Battery pack without batteries with gasket, GX-2012 / Gas Tracer



    GX-2012 Software

    GX-2012 Program Loader
    GX-2012 Data Logger Program
    SDM-2012 Software
    (Calibration Station)
    GX-2012 Program Loader Instructions
    GX-2012 Data Logger Management Program Operator’s Manual

    GX-2012 Literature

    Gas Tracer Datasheet
    GX-2012 Product Datatsheet
    GX-2012 Spanish Datasheet

    GX-2012 Spanish Datatsheet

    SDM-2012 datasheet

    SDM-2012 Datatsheet

    GX-2012 Manuals

    Gas Tracer Manual
    Standard ATEX version Operator’s Manual
    Gas Tracer CSA Manual
    CSA version
    Operator’s Manual
    GX-2012 Datalogger Management Manual

    GX-2012 Datalogger Management Program Operator’s Manual

    GX-2012 Manual

    Quick Check Cylinder Supplement
    Gas Tracer Quick Reference Card
    Quick Reference Card
    GX-2012 Spare Parts non CSA

    GX-2012 Spare Parts

    non CSA
    GX-2012 Spare Parts CSA

    GX-2012 Spare Parts
    CSA version

    Training Video

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