The Filio gas level detector is your perfect companion for outdoor adventures, whether you're grilling or camping. With its user-friendly interface, the device provides immediate visual feedback: LEDs on top and a ring-light around the trigger button indicate gas detection in green, while red lights signify its absence. Designed for versatility, it fits all standard steel and aluminum gas cylinders with diameters between 200 and 350 mm. The state-of-the-art ultrasound measurement ensures accurate results, while the magnetic attachment guarantees a secure 90° alignment for precise readings. Additionally, Filio allows you to check its battery status - just press the trigger button when it's not attached to a gas canister, and the LEDs will indicate the battery level. Compact and user-friendly, the Filio is a must-have tool for hassle-free gas level detection.