First Alert, Onelink
OneLink Safe & Sound
Sensors · Security
HomeKit onlySmokeCarbon monoxideWi-FiBluetoothOn Apple's list
Where to buy
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Store links open the product’s own page, matched to this accessory by name and model number. Prices and stock aren’t checked and vary by region; check that the model you buy says it works with Apple Home or Matter.
From store listings
| Color | White |
|---|---|
| Dimensions | 3.11 in. x 15 in. x 61.61 in. |
| Model | Onelink Safe & Sound |
From the Bing Shopping page for “First Alert Onelink Safe & Sound - Smart Hardwired Smoke + Carbon Monoxide Alarm And Premium Home Speaker With Amazon Alexa”.
In ReReHome
Readings from eleven sensor types, any of which can trigger an automation.
And every other characteristic or Matter attribute it exposes.
Reports to Apple Home
Connectivity
- Wi-Fi
- Bluetooth LE
How it reaches your home
- HomeKit over Wi-Fi
Identifiers
| Manufacturer | First Alert (BRK Brands / Resideo), Onelink |
|---|---|
| Model / SKU | AC10-500V2 (community) |
| Model / SKU | 1039102 (US SKU, community) |
| Model / SKU | 1039723 (CA SKU, community) |
Compatibility notes
- Hardwired smart smoke + CO alarm with an Alexa-enabled speaker. The community HomeKit catalog (homedevices.app) has records AC10-500V2 (Bluetooth + Wi-Fi, fw 2.0.99/2.1.99) and SKU 1039102 (Wi-Fi + Bluetooth), all undated.
- firstalert.com no longer lists Onelink products; its Onelink support links go to a JS-only Salesforce help center that returned no content. Manufacturer specs could not be retrieved. Likely discontinued.
- Bluetooth is taken to be for setup, with HomeKit over Wi-Fi. This is inferred, not confirmed by the manufacturer.
