Simple installation. For household, trade and leisure. With Bluetooth remote transmission to a smartphone or tablet. Menu language of the app in German and English. For all common gas cylinders with a fuel weight of e.g. 5.8 and 11kg. Measuring accuracy: +-200g, supply voltage: 3 batteries type AAA (not included). Note: for error-free measurement, the Senso4s level gauge must be placed on a level and firm surface. You can download the app for the Senso4s free of charge for the respective operating system in the Apple or in the Google Play Store.