The GasCheck makes it possible to quickly detect the fill level of steel liquefied petroleum gas (LPG) cylinders (5 kg/11 kg). To do this, the device is simply pressed against the test item from the outside and provides information with color and acoustic signals. Users can therefore easily assess whether the available gas quantity is sufficient for their project or whether they need a second bottle. Ideal areas of application are camping, barbecuing, when operating radiant heaters or when working with gas burners.