The ability to read up to 30,000 ppm CO2 is critical to the proper operation and safety of an emergency CO2 system like the Carbon-X. The MBS-K30 is Trolmaster’s latest CO2 sensor, incorporating a 0-30,000 ppm NDIR sensor in a self-priming housing. The MBS-K30 also features a built-in LCD display that will constantly display the current CO2 level (ppm). Each zone/room monitored by the Carbon-X can have 1 or 2 MBS-K30 CO2 sensors installed to meet local code requirements.