On November 27th and 28th, the European Horizon 2020 project microMole held its interim review meeting in Berlin, Germany. During the review a number of project prototypes were demonstrated, including the crawler robot for installing the microMole ring system (in the photo). CNSD presented a prototype of a battery-powered 6LoWPAN wireless sensor network that collects measurements from pH and conductivity sensors placed in the sewers, and sends those measurements to a management station.