Electro Systems Lab (ESL) 445C

Electro Systems Lab (ESL) 445C

Will
This is an older ESL model 445C photoelectric smoke detector for use in 4-wire fire alarm systems. It was made in the mid to late 1980s and is now replaced with model 449C. A similar version, under the model number 445CT, has an integrated 135˚F fixed temperature heat sensor. It has a characteristic silver heat collector on its cover. #445 #445c #alarm #detector #electro #ESL #fire #lab #photoelectric #security #smoke #system #systems
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