Hard-wired definition
Hard-wired means that they are connected to the property’s electrical wiring, which means that they are not reliant on the tenants changing batteries – although they do have a battery back-up as well.
Hard-wired means directly connected to the electrical power supply of the building, whose power source is required for smoke detectors in any building constructed after April 26, 1978.
Hard-wired means directly connected to the electrical power supply of the building, the power source of which is required for smoke detectors.
More Definitions of Hard-wired
Hard-wired means "innate" or fixed in the neural structure from before birth.
Hard-wired means a physical electrical connection in the form of a continuous conductor.