GX 2012 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 Our Sales





  • Description
  • Features
  • Applications
  • Specifications
  • Download
  • Training Video

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.

  • 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)
  • 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 
Methane

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
(optional 0-500 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 ± 2ppm H2S

± 5% of reading or ± 5 ppm CO

Sampling Method

Internal sample pump, flow rate nominal 0.5 LPM, includes hydrophobic filter

Display

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, CE, CSA classified (as standard), as intrinsically safe. Class I, Division 1, Groups A, B, C, D (optional version available)

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, up to 100’ max. available)
  • Carrying case

Configurations

1, 2, 3, 4, or 5 sensor units
Li-Ion or alkaline battery pack options

Warranty

Two years material and workmanship

Download datasheet

GX-2012 Introduction

Driven By Values, Delivering On A Vision.