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No hardwire installation required and no need to change the batteries over the 10-year life of the alarm. Simply replace the entire unit after 10 years. Smoke detector utilizes an ionization sensor to detect fire hazards and sounds an 85dB alarm when a hazard is detected.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.