Ohio Rev. Code § 3781.107
Every hotel shall have available at least one operational single station automatic fire warning device approved by the fire official of jurisdiction, that produces a visible warning signal when activated by every product of combustion. The device, at the discretion of the owner, may also be activated by an early warning fire protection system. Hotels having fewer than seventy-five rooms shall have at least one warning device available for its guests. Hotels having more than seventy-five rooms shall have available for its guests, one device for every group of seventy-five rooms. Upon the request of a guest, such a device, if available, shall be installed in the guest's room.
As used in this section, "hotel" means a hotel as defined in division (M) of section 5739.01 of the Revised Code.
R.C. §3781.107