Siemens adopts traffic light approach for newly designed IAQ sensorsA complete redesign of the Siemens range of room sensors has indoor air quality (IAQ) as a central focus, with the introduction of a traffic light system to enable any issues to be identified at a glance. Many IAQ sensors indicate the levels of CO2 parts per million for a given environment. However, without information ...The post Siemens adopts traffic light approach for newly designed IAQ sensors appeared first on Professional Electrician.