Bosch gas level detector FILIO

The Filio gas level detector helps check the fill level of a cylinder. Ultrasonic technology measures the gas level, and green LEDs indicate the presence of gas, while red LEDs indicate its absence. The magnetic attachment helps position the device correctly against the cylinder. When the device is removed from the cylinder, you can also check the battery charge by pressing the trigger button.

The device is suitable for 5–11 kg steel and aluminium cylinders with a diameter of 200–350 mm. Bosch product information mentions propane and butane, but according to the user manual, the detector is not suitable for measuring the fill level of butane containers. It is also not suitable for plastic cylinders or gas tanks.

Measurement starts when you press the device against the cylinder. The result is displayed for 3 seconds after a measurement lasting approximately 5 seconds, after which the device switches off. Measure at different heights on the cylinder, starting from the bottom, and do not slide the device along the cylinder.

For a more accurate result, clean the measuring button and the cylinder surface. Rust, a thick layer of paint, stickers, deep scratches, weld seams, moisture, ice and deformation can affect the measurement. Clean the measuring button with a soft, damp cloth. The manufacturer recommends alkaline-manganese batteries. Always replace all batteries at the same time, and use batteries from the same manufacturer with the same capacity. If you are not going to use the device for an extended period, remove the batteries.