Smart Home · Smart Smoke Detectors
Do smart smoke detectors need to be hardwired?
Reviewer consensus
No. The candidates here split into hardwired models with battery backup (such as the First Alert SMICO100-AC and Kidde Ring-enabled hardwired unit) and fully battery-powered models with wireless interconnection (such as the First Alert SCO500B and battery Kidde units). Hardwired units suit whole-home interconnected wiring; battery models are simpler to retrofit but require battery management.