Carbon dioxide sensor (CO2) for the I-port

The LCN-CO2 is a CO2 sensor for the indoor area. It can measure CO2 concentrations of 1 to 5000 ppm.


The LCN-CO2 measures the carbon dioxide content (CO2) of the air in the interior of buildings. This enables the energy-efficient control of ventilation and air conditioning systems and thus demand-oriented supply of fresh air. In this way, the LCN-CO2 makes an active contribution towards healthy room air quality. The sturdy, compact sensor uses an infrared-based spectroscopic measurement method to measure the carbon dioxide content of the air. It responds even to slightest changes to the air composition. The LCN-CO2 can be combined with any I-port peripheral equipment at the I port of all intelligent LCN modules (-UPP, -UPS, -UP24, -SH, -SHS, -HU, -LD). The LCN-CO2 can take effect on the R1 and R2 controllers as well as the signal thresholds 1 to 5. Measured values can be exchanged between LCN modules and used for arithmetic operations.


CO2 sensor for determining the room air quality

Housing for mounting on 68 mm flush-mounted socket

Cable with plug for I ports

LCN-NU16 (power supply unit)

Product guide