KELLER made again an appearance at IFAT in Munich. One of the focal points of the prestigious trade fair for environmental technology is water and sewage management, making it an ideal platform for showcasing KELLER’s level sensors and data loggers and for presenting its latest achievements. Martijn Smit from KELLER in the Netherlands was interviewed by WWI (Water & Wastewater International Magazine) about different data loggers, LoRa devices and he presented also the KELLER Kolibri Cloud.