Many standard gas detectors (or "gas sniffers") on the market only give an audible or visual warning when a leak is present. That is useful for knowing a problem exists, but not for understanding how large it is.
Instead of telling you "there is some gas here", the dual display tells you "there is exactly 500 PPM here and the concentration is rising" — invaluable information for risk analysis and for locating the source of a leak.
The instrument is designed around the needs of field technicians and safety specialists, with legibility and clear information to the fore.
The GD-3308 has a sensitive semiconductor sensor able to detect very low gas concentrations (50 PPM methane, for example), which means leaks can be found long before they reach a dangerous level.
Gas leaks usually begin out of sight in hard-to-reach places: pipe joints, boiler rooms, the insides of kitchen units, along wall bases or in vehicle engine bays. The CEM GD-3308's 40 cm flexible metal probe solves that problem.
In an emergency or during an intensive inspection, time is critical. The instrument is ready to measure immediately after a short warm-up, and its response time is very fast — usually under two seconds — so the displayed value changes the moment you move the probe.
Its ergonomic design, comfortable to hold in one hand, makes it one of the most practical tools in the field.
The CEM GD-3308's digital display provides both of these critical units of measurement, reflecting the instrument's professional standard.
Why does this matter? If the display shows 10% LEL, you have reached 10% of the explosive limit; 100% LEL means the atmosphere could ignite at any moment. Providing this figure lets you analyse not just whether there is a leak, but whether there is a serious explosion risk.
The CEM GD-3308 is a professional necessity in any environment where flammable gases are present.
The instrument's technical capability and professional features are set out in detail in the specifications below.
