The Trenz Electronic TEI0024-01 MAXCO2 is a compact evaluation kit for precise CO2 measurement of the ambient air in rooms and displays pre-defined CO2 levels directly via 8 LEDs. MAXCO2 is a combination of the well-known MAX1000 Intel FPGA board, where many tutorials are available, and the high-precision CO2 measurement sensor SCD30 from Sensirion. The board is supplied via a standard micro-USB connector (e.g. mobile phone charger) and shows the current CO2 concentration levels via the LEDs already after a few seconds.