ExTox gas detection demo board with NH3, CO2 and H2S sensors

Photo: Mariusz Młynarczyk / CloudAir.tech

ExTox Gasmess-Systeme shows a large demonstration board of gas detection controllers, sensors and warning beacons with LED strips labelled NH3, CO2 and H2S. A red oval sign hangs above the shell-scheme stand, and a roll-up banner reads "Gasüberwachung in Kühlhäusern" and "Messung von Ammoniak in Sole".