The Honeywell IAQ Sensor TR50 can detect indoor temperature, humidity, CO2, fine dust and volatile organic compounds. It sends the values to the building system, which accordingly ensures a pleasant, healthy indoor climate and also saves energy. The sensor has a modernly designed housing with gently rounded edges and a coloured semicircular ring indicating the air quality that can also be easily recognised from a distance. The operating button is located on the top so that the clean appearance of the front is maintained. The jury found: “The sensor impresses with its minimalist design language that harmonises well with other wall installations.”