2025-09-23 00:00:00 Fast and easy Legionella control from LegionellaDossier From now on anyone can perform Legionella control! With our offline app you no longer have to deal with paper lists and logbooks and you will receive clear instructions for performing tasks. You don't even need a permanent internet connection! The app works in conjunction with a Bluetooth thermometer to ensure that tasks are always quick and easy to perform. You just have to hold the thermometer under the outlet and the app will take care of itself!