Item Tag: ESL
2 posts
ESL 320 120VAC PHOTOELECTRIC SMOKE ALARM Detector – Fire Alarm
The Southwire brand has a no-frills approach that many pros respect.
July 4, 2026
ESL 320/H 320H 120VAC PHOTOELECTRIC SMOKE ALARM Detector – Fire Alarm 135 Fixed
I am not sure what the "H" represents in the model number. I am guessing built in heat detector but there is very little information on this.
July 4, 2026