Gasolina

"Gasolina uses the associated sensor to measure the current fill level of your gas cylinder via ultrasound. The sensor transmits the data directly to the connected app via Bluetooth whenever you are nearby. And the best thing is that the sensor simply attaches to the gas cylinder with a magnet - no screwing, no gluing. Within a few seconds, the sensor is connected to the app and the measurement starts. Fully automatic, you don't have to worry about anything else. But you don't just get the current fill level. You will be able to see how much gas you use on average, how much gas you have used in total and how long your gas cylinder is likely to last until you need a new one. You can also individually set the fill level at which Gasolina should notify you. So you always have a complete overview about your consumption. With the Gasolina app, you can monitor several sensors and therefore also several gas cylinders."