GasCheck G

Utilising an advanced micro-thermal conductivity sensor with improved sensitivity the GasCheck G delivers rapid, effective detection of leaks down to cc/sec, g/yr, mg/m3or ppm levels.

List of Benefits

  • Improved Micro Thermal Conductivity Sensor for enhanced sensitivity
  • Three new variants available; G1, G2 & G3
  • Choice of readings in cc/sec, g/yr, mg/m3 or ppm
  • New graphical icon display menu for international markets
  • Rapidly detects almost any known gas or gas mixture - particularly sensitive to ammonia, argon, butane, helium, hydrogen, SF6
  • Reliable, stable and repeatable readings
  • Conveniently calibrated against helium
  • LCD back lit display
  • Hand held & Robust


Designed for the search and location of gas leaks, GasCheck G has an advanced micro thermal conductivity sensor for fast, effective detection of almost any gas or gas mixture.

Robust and reliable, GasCheck G provides stable, repeatable readings of the detected gas. The instrument’s LCD display, LED indicator and audible sounder clearly indicate the leak present.

GasCheck G automatically zeros to the ambient air around it when switched on and is ready to detect immediately. The instrument’s new, easy to use graphical interface and intuitive keypad allows simple function, selection and adjustment.

Upgradeable throughout the range, GasCheck G is available in three distinct versions; G1, G2 and G3 with varied capabilities. Features can be easily added to upgrade the instrument without it having to be returned to the factory.

  • Applications:
    • Industrial
    • Quality Assurance
    • Manufacturing
    • Laboratory
    • Medical
    • Research


Feature G1 G2 G3
Rapid detection of gas leaks X X X
Measures gas leaks (single gas)   X  
Measures gas leaks (up to 20 gases)     X
Audible sounder X X X
Flashing back-lit displa X X X
Peak hold readings   X X
Factory or custom calibration available   X X
Data logging (store up to 10 readings)     X
Readings displayed in cc/sec, g/yr, ppm or mg/m3     X
Selectable battery type     X
Upgradeable X X  
SpecificationDetail Description
DETECTORMicro thermal conductivity detector (MTCD), sensor is poison resistant with over range protection
SENSITIVITY (cc/sec) He 1 x 10-5, CH4 5 x 10-5, R12 5 x 10-5, Ar 1 x 10-4
ACCURACY± 5% Displayed reading ± One digit
RESPONSET90 = 1 second rise and clear down
SOUNDFlashing LED and 90 dBA (at 10 cm) audible sounder
CALIBRATIONCalibrated to UKAS/NIST standards
DATA LOGGING10 data points with date and time stamp
FLOW RATE2 cc/min
Storage -20 to +70°C, -4 to 158°F
Humidity 0 to 99% RH (non-condensing)
WEIGHT & DIMENSIONSInstrument with probe 390 x 60 x 49 mm, 15.5 x 2.3 x 1.9”
Case 420 x 320 x 97 mm, 16.5 x 12.5 x 3.8”
Instrument 0.45 kg, 1 lb, Packed 1.6 kg, 3.5 lb

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