30621 Stratos-HSSD Standard DetectorThe Stratos HSSD2 has unmatched sensitivity potential, providing the very earliest warning of incipient fire with a minimal rate of nuisance alarms. The Stratos HSSD2 employs a patented Artificial Intelligence system known as ClassiFire, which ensures that the detector operates at optimum sensitivity for the protected environment, without the need for complex setup. The unit is equipped with 'Fault' and four 'Alarm' relays, plus three programmable