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Title: Terrible performer
Review: Installed 8/1/7. Chirping on 11/4/12 equals 5 years...a bit shy of the "10 year life". Pulled the disconnect switch as instructions indicate, still chirped. Had to hack battery out to make it stop. Oh yeah, also been a full time firefighter for 24 years, we hand out $5 detectors that last longer than this.....Junk
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