Advanced Gas Sensing Technologies
Product Details
GasCheck G Handheld Gas Leak Detector

The GasCheck G gas leak detector represents the latest in gas detection technology. Its advanced system of micro thermal conductivity enables improved sensitivity for the rapid, effective detection of gas leaks down to cc/sec, mg/m³ or ppm levels.
Designed for the search and location of gas leaks, the GasCheck G leak detector provides you with effective detection of almost any gas or gas mixture. Robust and reliable, the GasCheck G leak detector gives stable, repeatable readings of the detected gas. The instrument’s LCD display, LED indicator and audible sounder clearly indicate the leak present.
The GasCheck G leak detector automatically zeros to the ambient air around it when switched on and is ready to detect immediately. The instrument’s easy to use graphical interface and intuitive keypad allows for simple function, selection and adjustment.
Upgradeable throughout the range, the GasCheck G gas leak detector 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.
DETECTOR
Micro thermal conductivity detector (MTCD)
Sensor is poison resistant with over range protection
OPERATION
Battery Type: 4 x alkaline AA size or NiMH (rechargeable)
Typically 40 hours life
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
RESPONSE
T90 = 1 second rise and clear down
SOUND
Flashing LED and 90 dBA (at 10 cm) audible sounder
CALIBRATION
Factory calibrated to fully documented procedures in accordance with our ISO 9001:2008 Quality Management System
DATA LOGGING
10 data points with date and time stamp
FLOW RATE
2 cc/min
TEMPERATURE
Operating: -20 to +60 oC, -4 to 140 oF
Storage: -20 to +70 oC, -4 to 158 oF
Humidity: 0 to 99% RH (non-condensing)
WEIGHT & DIMENSIONS
Instrument 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
The GasCheck G gas leak detector detects gases across a wide range of industries and applications, including:
The following GasCheck G Handheld Gas Leak Detector documents can be downloaded below. To obtain hard copies of any of the items, please email info@ionscience.com
The following accessories are available for the GasCheck G Handheld Gas Leak Detector. For further information or pricing please contact Ion Science or your local Distributor.
| Part Number | Description |
| 08024CPC8 | Nozzle Std Grey |
| 1/BH-01 | Battery Holder |
| 860226 | GasCheck G Calibration Kit (ppm) |
| 860230 | 60L Disposable Cyl 5000ppm Helium Bal Synthetic Air |
| A-08029 | Drilled Box Spanner |
| A-08043 | Short Probe Assembly |
| A-08045 | Long Probe Assembly |
The GasCheck G gas leak detector is available in 3 distinct variants. See below for details.
| Feature | G1 | G2* | G3 |
| Rapid detection of gas leaks | • | • | • |
| Measures gas leaks (single gas) | • | ||
| Measures gas leaks (up to 20 gases) | • | ||
| Audible sounder | • | • | • |
| Flashing back-lit display | • | • | • |
| Peak hold readings | • | • | |
| Factory or custom calibration available | • | • | |
| Data logging (store up to 10 readings) | • | ||
| Readings displayed in cc/sec, g/yr, ppm or mg/m3 | • | ||
| Selectable battery type | • | ||
| Upgradeable | • | • |
*The G2 model is factory configurable only; the Gas and measurement Units must be specified with the order.

A GasCheck G3 Kit includes:
For further information or pricing please contact Ion Science or your local Distributor.
“We recently purchased an Ion Science GasCheck G3 through their UK distributor Shawcity Ltd. The product is to be used for leak detection on pressurised sealed enclosures, as well as during installation of various gas cylinders to ensure that there are no leaks around the regulator fittings. The gases being detected include argon, helium and nitrogen. We chose to purchase this product as the instrument performs to the high levels of sensitivity our applications demand. Furthermore, the instrument is extremely simple and intuitive to use, so training is not required to understand the results. We found out about the GasCheck G3 by searching on Google ‘Argon leak detection equipment.
I have found the GasCheck G to be simple and intuitive to use. The pre-sales service received was excellent and so was the company overall. I was provided with detailed, technical information when I first contacted Ion Science and was then passed to a local distributor. We were then able to demonstrate how the instrument performed in our application, which led to us making the purchase.”
Geoff Martin, Camera Systems Engineer, Andor Technology Plc
To read more Testimonials on our products, please visit our 'What Our Customers Say' page