Automatic drift compensation Built-in 85 dB horn Local test button Low profile design High/Low sensitivity reporting Low battery indication Easy-maintenance removable smoke chamber Non-contact sensitivity reading with handheld test meter (FSD-100) Long-life lithium batteries included UL/ULC listed for residential applications Approval Listings: FCC/IC, UL/ULC, CSFM

Automatic drift compensation Built-in 85 dB horn Local test button Low profile design High/Low sensitivity reporting Low battery indication Easy-maintenance removable smoke chamber Non-contact sensitivity reading with handheld test meter (FSD-100) Long-life lithium batteries included UL/ULC listed for residential applications Approval Listings: FCC/IC, UL/ULC, CSFM