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1024First Alert hardwire smoke path — interconnect stays First Alert unless the circuit is reworked.
| Field | Value |
|---|---|
| Brand | First Alert |
| SKU | 1024 |
| Role | Hardwire smoke alarm |
| Power | 120V hardwire (+ battery backup on many listings) |
| Often confused with | 1020B, Kidde hardwire |
| Hard stop | Brand interconnect protocols are not assumed compatible |
| Confirm | Existing First Alert interconnect + replace-by date |
Brand interconnect protocols are not assumed compatible
first-alert-1020b · first-alert-sco501cn · kidde-kn-cosm-iba