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First Alert 1020B

First Alert smoke alarm listing path — confirm hardwire vs battery and interconnect needs.

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Fitment facts

FieldValue
BrandFirst Alert
SKU1020B
RoleSmoke alarm
Often confused with1024, 4010SCL-W, SCO501CN, SCO5CN
Hard stopSmoke-only units are not CO protection
ConfirmPower type and interconnect requirement for the location
IntervalReplace by date on the unit (often 7–10 years) — not only low-battery chirps

Hard stop

Smoke-only units are not CO protection

Before you buy

Derived from this card’s fields — still confirm on the part and OEM docs.

  • Hard stop: Smoke-only units are not CO protection
  • Confirm: Power type and interconnect requirement for the location
  • Often confused with: 1024, 4010SCL-W, 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.

Sources

Related

first-alert-sco501cn

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