# First Alert SCO501CN-3ST: specs and price

**Price (US):** Not published (Discontinued by First Alert; manufacturer page shows no price and the third-party (Amazon) price could not be independently confirmed. Null rather than guessed.), as of 2026-08-16.
**Brand:** First Alert

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | Not published |
| Brand | First Alert |
| Sensor type | photoelectric |
| Detects co | Yes |
| Power | battery |
| Interconnect | wireless |
| App alerts | No |
| Voice location alerts | Yes |
| Sensor life yr | — |
| Self test | Yes |

## Frequently asked questions

**How much does the First Alert SCO501CN-3ST cost?**

The First Alert SCO501CN-3ST has no published US price 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 Yes, power battery, interconnect wireless, app alerts No. Full sourced spec sheet verified 2026-08-16.

Source: https://www.firstalertstore.com/store/products/sco501cn-3st-onelink-wireless-talking-battery-operated-smoke-and-co-alarm.htm (firstalertstore.com, accessed 2026-08-16)
Corroboration: https://us.amazon.com/First-Alert-SCO501CN-3ST-Battery-Extinguisher/dp/B07GBV6YRT (accessed 2026-08-16)
Canonical: https://frontdeskreview.com/product/smart-smoke-detectors/first-alert-sco501cn-3st/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl