
First Alert
First Alert Onelink Smoke + CO Alarm (Battery Operated)
Sensors · Security
HomeKit onlySmokeCarbon monoxideWi-FiBluetooth
Where to buy
Store searches look up “First Alert Onelink Smoke + CO Alarm (Battery Operated)” at each retailer. Availability and prices vary by region; check that the model you buy says it works with Apple Home or Matter.
From store listings
From the Bing Shopping page for “First Alert Smart Onelink Smoke + CO Alarm - Battery Operated”.
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) |
|---|---|
| Model / SKU | 1042136 |
| Model / SKU | Onelink Smart Smoke + CO Alarm (battery, 2nd gen) |
Reported versions
| Version | Date | Source |
|---|---|---|
| Firmware 3.1.508 | homedevices.app |
Compatibility notes
- Battery-powered 2nd-gen Onelink HomeKit alarm (9to5Mac 2018-12-03).
- Reported by HomeKit users in the HomeDevices community catalog (1 record, US); not on Apple's accessory page.
- Category from the HomeKit category reported by the record.





