I CHANGED OUT THE DETECTORS TO :
The ESL 449/448 Series self-diagnostic, four-wire
smoke detectors continually monitor their own
sensitivity and operational status,,,,,,,,,
This series is easily cleaned by simply replacing
ESL's proprietary field-replaceable optical chamber. All
models are designed to reduce false alarms from
dust, insects, RFI, and external light.
IT DID REDUCE THE ALARMS...
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