Smart Smoke Detector
First Alert OneLink Smart Smoke Detector
by First Alert
The First Alert OneLink Smart Smoke Detector is a strong choice for homeowners seeking a balance between essential safety and modern convenience.



Technical Specifications
- Dual smoke and carbon monoxide detection
- Smartphone push notifications via OneLink app
- Voice alerts identifying hazard type and location
- Compatible with Alexa, Google Assistant, and HomeKit
- Built-in temperature and humidity sensor
- Automatic monthly self-testing with diagnostics
- Battery backup during power outages
- Interconnects with other OneLink devices in the home
Pros
- ✓ Clear voice alerts reduce confusion during emergencies
- ✓ Easy remote monitoring from anywhere via app
- ✓ Sleek design blends into modern home decor
- ✓ Reliable smart home integration across major platforms
- ✓ Reduces false alarms compared to older models
Cons
- ✕ Requires stable Wi-Fi for full smart features
- ✕ Higher price point than basic smoke detectors
- ✕ App occasionally needs reconnection after router changes
- ✕ Battery replacement can be less intuitive than standard units
First Alert OneLink Smart Smoke Detector
by First Alert
- Smart phone alerts
- Voice hazard announcements
- Works with major ecosystems
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The First Alert OneLink Smart Smoke Detector brings connected safety to modern homes, pairing traditional smoke and carbon monoxide detection with smart home integration. Designed to work seamlessly with Apple HomeKit, Amazon Alexa, and Google Assistant, this device sends instant alerts to your smartphone when smoke or CO levels rise, even if you're not home. Its sleek, low-profile design blends into any ceiling or wall, making it far less obtrusive than bulky legacy alarms. Beyond basic detection, the OneLink uses a photoelectric sensor combined with an electrochemical CO sensor to reduce false alarms while catching real threats early. The unit also doubles as a room sensor, monitoring temperature and humidity, and can trigger connected smart lights to flash for added awareness during an emergency. Voice alerts announce the type and location of danger instead of a generic siren, giving occupants clearer, faster information during a crisis. Installation is straightforward with the OneLink mobile app, which guides users through Wi-Fi setup, testing, and battery calibration. The detector also supports self-testing and monthly automated diagnostics, sending a report directly to your phone so you're never left wondering if the unit is functioning. For households already invested in a smart ecosystem, this device fits naturally into daily routines while providing peace of mind around the clock.
Customer reviews
I got an alert on my phone about low battery while I was out of town, and I was able to fix it as soon as I got home. Love the added awareness.
Works well with my Google Home setup. Occasionally loses connection after a router reset, but reconnecting is quick and painless.
Hearing exactly where the smoke was detected instead of just a beep made evacuating so much easier. Highly recommend for families.
Installation was simple through the app. It's pricier than basic detectors but the smart features make it worth it for our home.



