PDF document could be downloaded HERE.
Room and duct CO2 sensors for building control systems are based mostly on the NDIR (Nondispersive Infrared) measuring elements. They measure the diffusion of infrared light caused by the presence of CO2 molecules in the measuring chamber.
We already have all webinar records in their CZ and EN variants stored on our youtube channel.
Although the Modbus standard was defined more than 40 years ago, the protocol still provides reliable and fast communication between programmable logic controllers, sensors, thermostats, frequency converters and other devices.