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First Alert 4010SCL-W
First Alert hardwire smoke path with battery backup — interconnect per First Alert/BRK guidance only.
Fitment facts
| Field | Value |
|---|---|
| Brand | First Alert |
| SKU | 4010SCL-W |
| Role | Hardwire smoke |
| Often confused with | 1020B, 1024, SCO501CN, SCO5CN |
| Hard stop | Not automatically compatible with Kidde interconnect circuits |
| Confirm | Existing alarm brand labels |
| Interval | Replace by date on the unit (often 7–10 years) — not only low-battery chirps |
Hard stop
Not automatically compatible with Kidde interconnect circuits
Before you buy
- Hard stop: Not automatically compatible with Kidde interconnect circuits
- Confirm: Existing alarm brand labels
- Often confused with: 1020B, 1024, SCO501CN, SCO5CN
- Interval: Replace by date on the unit (often 7–10 years) — not only low-battery chirps
- Match interconnect brand/protocol on the existing circuit.