Cofem COsensor System Warning Devices (Sirens and Signs)

COsensor system warning devices. When CO/NO2 concentration accumulating on-site reaches a level hazardous to human health, COsensor control panels activate the alarm output; these sirens and signs warn occupants on-site and prevent entry. Exhaust gas accumulation in enclosed parking areas is invisible and odorless — without warning devices, alarm detection has no practical effect.