(b) Unless otherwise agreed in writing, at the commencement of the tenancy of a single-family home or duplex, the landlord shall install working smoke detection devices. As used in this paragraph, the term "smoke detection device" means an electrical or battery-operated device which detects visible or invisible particles of combustion and which is listed by Underwriters Laboratories, Inc., Factory Mutual Laboratories, Inc., or any other nationally recognized testing laboratory using nationally accepted testing standards.
F.S. 553.883 Smoke alarms in one-family and two-family dwellings and townhomes.—One-family and two-family dwellings and townhomes undergoing a repair, or a level 1 alteration as defined in the Florida Building Code, may use smoke alarms powered by 10-year non-removable, non-replaceable batteries in lieu of retrofitting such dwelling with smoke alarms powered by the dwelling’s electrical system. A battery-powered smoke alarm that is newly installed or replaces an existing battery-powered smoke alarm as a result of a level 1 alteration must be powered by a non-removable, non-replaceable battery that powers the alarm for at least 10 years. The battery requirements of this section do not apply to a fire alarm, smoke detector, smoke alarm, or ancillary component that is electronically connected as a part of a centrally monitored or supervised alarm system; that uses a low-power, radio frequency wireless communication signal; or that contains multiple sensors, such as a smoke alarm combined with a carbon monoxide alarm or other multi-sensor devices, and is approved and listed by a nationally recognized testing laboratory.