Protecting your home is important, and a smart smoke and carbon monoxide detector can give homeowners peace of mind even when they're away. These are the best options that incorporate Apple's HomeKit. When it comes to HomeKit-enabled smoke and carbon monoxide detectors, there isn't much to choose from. However, the existing ones are packed with features that make them a valuable addition to the home.

Here's a short list of some of the best HomeKit-compatible smoke and carbon monoxide detectors on the market today.

- Owl Wired with HomeKit Support: Owl Home, Inc. originally showed off the Owl Wired, which comes in white or black, at CES 2021. This home security system monitors smoke and carbon monoxide levels, temperature, humidity, noise levels, and motion. It supports 802.11n, 2.4GHz, Wi-Fi and Bluetooth 4.2. The 1000mAh internal battery is 3.7V and the Owl Wired meets UL-268 and ULC-531 standards. The Owl Wired supports Apple's HomeKit, Google Assistant, Amazon Alexa and the IFTTT software platform. There are six multi-color LEDs on the front, which can visually alert a homeowner to a hazard. The buzzer of the smoke and carbon monoxide detector reaches 89 decibels up to 3 meters away. The user can also choose to adjust the volume level within the app. The Owl Wired retails for $179.00, but is currently on sale for $169.00 at Owl Home.

- First Alert OneLink Safe & Sound with HomeKit support: The more expensive option of First Alert is Safe & Sound. It is a wired photoelectric smoke and electrochemical carbon monoxide detector with an omnidirectional speaker. First Alert OneLink Safe & Sound's combo detector is available in just one color: white, and First Alert makes it easy to monitor battery levels thanks to the company's app. However, First Alert does say that AC power is required to use Safe & Sound. Safe & Sound can easily be connected to other wired safety devices in the home. In addition, the safety system's built-in speaker can also play music and podcasts. Safe & Sound from First Alert supports HomeKit and AirPlay 2, along with Amazon Alexa. It retails for $199.99 on Amazon at the time of writing.

- First Alert OneLink Smoke and Carbon Monoxide Alarm with HomeKit Support: First Alert also offers a cheaper option, but this takes away some of the extra features in the Safe & Sound model. This standard option comes in a battery or hardwired variant, both available in white only. The cheaper detector still includes photoelectric smoke and electrochemical carbon monoxide detectors, but lacks the omnidirectional speaker. The OneLink smoke and carbon monoxide detector can be connected to other wired safety devices, including options from different brands. The detector warns the people in the house with a buzzer, but also sends notifications to the supported app. First Alert's OneLink smoke and carbon monoxide detector supports HomeKit and iOS devices, but customers can also take advantage of the device if they use Android. The wired First Alert OneLink Smoke and Carbon Monoxide Detector is available from Amazon for $129.98. The battery-powered option sells for $115.87.

- Bosch Smart Home Smoke Detector II with HomeKit support: The Smart Home Detector II from Bosch is strictly speaking a smoke detector and is only available in Europe. It is also only available in white. Bosch has a whole family of smart, internet-connected devices designed to make the home safer. This is one of them, and therefore it is better to be connected to the network. The Smart Home Smoke Detector II can detect smoke and sound an alarm in the home, while also sending a push notification to smartphones. When the home is equipped with smart devices such as blinds and lighting, the smoke detector can illuminate important parts of the house to show visible escape routes. It can also automatically activate connected cameras and raise blinds. It has a replaceable 3V battery, which should last five years. The Smart Home Smoke Detector II from Bosch is available from Amazon UK for £58.99.

- Bosch Smart Home Twinguard with HomeKit support: The Bosch Smart Home Twinguard shares the same features as the Smoke Detector II, especially as part of the Bosch smart whole-home system. This means it can show an escape route if a fire is detected, sound the alarm throughout the house and activate other user-set smart devices. But the Smart Home Twinguard also measures the air quality in the home. The user can set the optimal range within the app and the detector keeps track of these measurements. This device can also measure trends in temperature, humidity and air quality for up to three months. Like the Smoke Detector II, the Bosch Twinguard is only available in Europe. The Smart Home Twinguard from Bosch is available from Amazon UK at the discounted price of £109.49.

- HomePod as a warning system: Apple's HomePod (2nd generation), together with the current HomePod mini, is equipped with sensors that can measure the temperature and humidity in a room. It is not necessarily a smoke or carbon monoxide detector. However, the smart speaker can listen to audio signals from smoke or carbon monoxide detectors and relay that information to the iPhone, Apple Watch and iPad. The HomePod and HomePod mini cannot replace a smoke or carbon monoxide detector, but they can serve as an additional notification layer. The HomePod retails for $299.00 in Midnight or White, but discounts are available in the Homekit.Blog HomePod Price Guide to bring the price down. The HomePod mini is available in Space Gray, Blue, Yellow, White or Orange and costs €99.00. At the time of writing, OWC is selling units in new bulk packs for $78.99.