Skip to content
Accessories TestFlight
Onelink Smoke and Carbon Monoxide Alarm, Battery Powered
First Alert, Onelink

Onelink Smoke and Carbon Monoxide Alarm, Battery Powered

Sensors · Security

HomeKit onlySmokeCarbon monoxideWi-FiBluetoothOn Apple's list

Where to buy

Search other stores

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.

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

ManufacturerFirst Alert (BRK Brands / Resideo), Onelink
Model / SKUDC10-500
Model / SKU1042136 (US SKU, community)
Model / SKU1042253 (CA 2nd gen SKU, community)

Compatibility notes

  • Onelink Wi-Fi smoke + CO alarm with a 10-year sealed battery. Community HomeKit catalog (homedevices.app) records: DC10-500 (Wi-Fi, fw 2.1.82) and 1042136 (Bluetooth + Wi-Fi, fw 3.1.508), undated.
  • Manufacturer Onelink pages are no longer available on firstalert.com, so there is no primary-source confirmation.