smoke alarms
system sensor 2wt b smoke alarm 12 24 vdc 2 wire therm sen
smoke alarm detection method photoelectric no interconnection capability power source 12 24 vdc two wire visual alert red led diameter 5 19 64 in . height 2 in . digital readout no battery backup no features removable detector cover and chamber built in remote maintenance signaling drift compensation and smoothing algorithms thermal sensor hush button no locking pin no operating temp . 32 degrees to 120 degrees f standards ul csfm includes base br b features b ul li battery backup no li li features removable detector cover and chamber built in remote maintenance signaling drift compensation and smoothing algorithms thermal sensor li li height 2 li li item smoke alarm li li operating temp . 32 degrees to 120 degrees f li li digital readout no li li hush button no li li power source 12 24 vdc two wire li li manufacturers warranty length 3 yr . li li standards ul csfm li li test button yes li li locking pin no li li diameter 5 19 64 li li detection method photoelectric li li interconnection capability no li li visual alert red led li li includes base li ul