First Alert · Updated August 2026
First Alert SCO501CN-3ST: full specs
First Alert SCO501CN-3ST. Every price and spec below is linked to its source and dated — no guesses.
Source: firstalertstore.com verified STALE · 2026-08-16 ✓ corroborated verify in ledger
Specifications
| Price (US) | Not published Discontinued by First Alert; manufacturer page shows no price and the third-party (Amazon) price could not be independently confirmed. No price is listed rather than a guess. |
|---|---|
| Brand | First Alert |
| Released | — |
| Sensor type | photoelectric |
| Detects CO | Yes |
| Power | battery |
| Interconnect | wireless |
| App alerts | No |
| Voice location alerts | Yes |
| Sensor life (yr) | — |
| Self test | Yes |
Source: firstalertstore.com (read 2026-08-16) STALE · 2026-08-16 · corroborated by us.amazon.com (read 2026-08-16).
How we checked
First Alert's own (now-discontinued) page confirms photoelectric+electrochemical dual sensor, two-AA battery power, wireless mesh interconnect (up to 18 units), and voice-with-location alerts; no app connectivity. 7-year limited warranty; sensor life (yr) null (replaceable AA, no sealed-life rating). Price removed: page is discontinued with no price and the Amazon figure was not verifiable.
Frequently asked questions
How much does the First Alert SCO501CN-3ST cost?
The First Alert SCO501CN-3ST has no US price of record as of 2026-08-16.
What are the First Alert SCO501CN-3ST's key specs?
First Alert SCO501CN-3ST (First Alert): Sensor type photoelectric, Detects CO, Power battery, Interconnect wireless, Voice location alerts. Full sourced spec sheet verified 2026-08-16.
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