The carbon dioxide meter PCE-RCM 12 is used for indicative testing of environmental parameters. The carbon dioxide meter PCE-RCM 12 enables the measurement of CO2, fine dust, temperature and relative humidity. The bright display of the carbon dioxide meter provides information about these parameters. Environmental monitoring can be done continuously with the carbon dioxide meter for up to five hours without the device being connected to a power source.

For permanent measurement, the carbon dioxide meter can be connected to AC power via a USB interface. The rechargeable battery will be recharged within two hours if the air quality monitor is turned off. When measuring carbon dioxide, the meter haas a wide measuring range from 0 to 9,999 ppm. The display of the concentrations is further facilitated by the use of a color rating scale, as this provides direct information about the air quality to the user.