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system sensor d4120w duct smoke detectorphotoelectric
duct smoke detector watertight photoelectric finish white duct mounting alarm current 100ma depth 2 1 2 in . length 14 3 8 in . width 5 1 2 in . ambient temp . limits 4 to 158 f air velocity 100 4000 fpm alarm aux . contact 30vdc 10a humidity range 0 to 95 % rh voltage 24vdc 24vac 120vac standards ul includes housing and detector br b features b ul li air velocity fpm 100 to 4000 li li alarm aux . contact 250v li li alarm aux . contact 30vdc 10a li li ambient temp . limits f 4 to 158 li li amps ac li li coverage square ft. li li alarm state ma li li standby state ma li li depth in . 2 1 2 li li duct width ft. li li finish white li li for use with li li height in . li li humidity range % rh 0 to 95 li li includes housing and detector li li item duct smoke detector li li length in . 14 3 8 li li package quantity 1 li li tube length ft. li li type watertight photoelectric li li width in . 5 1 2 li li alarm current 100ma li li duct opening li li flash candela li li mounting duct li li number required 1 li li peak output dba li li standby current ua li li voltage 24vdc 24vac 120vac li li standards ul li ul