Onelink Environment Monitor

Monitor the air of your home and protect your family’s health with the Onelink monitor.

The Onelink by First Alert Environment Monitor serves as a valuable tool for parents. The new monitor utilizes sensing features that detect low-level carbon monoxide (CO), which typical CO alarms cannot detect. It also features built-in temperature and humidity sensors.

Why it’s Important:

Low-level CO can be dangerous, especially for babies, children, senior citizens and pregnant women, causing headaches, vomiting, heart issues and more. Unregulated humidity can worsen children’s respiratory issues. The sleek, small, Apple HomeKit-enabled Environment Monitor protects against both. It does so by delivering information on indoor air conditions and emergency alerts to the users’ devices.

How it Works:

The monitor is outfitted with a 10-year internal CO sensor. The sensor allows the device to detect and notify the user with the Onelink Home App whenever CO readings register ten parts per million. This reading is three times more in depth than a standard CO alarm. This low-level sensing ability is particularly important for the health of children and pregnant women, as they are more susceptible to CO. Children in particular are at a higher risk for the health issues that can result from low-level CO because their nervous systems are still developing.

According to the American Academy of Pediatrics, there is a strong link between pre-natal exposure to low-level CO and low birth weights. Additionally, CO can cause Sudden Infant Death Syndrome, which affects one in 1,000 live births. This vulnerability makes the Onelink Environment Monitor a must have tool for parents and expectant mothers.

It has also been proven that warmer temperatures and high humidity can increase the existence of allergens such as dust mite, debris, and mold. The presence of such allergens can irritate respiratory problems and childhood asthma. With the Onelink Monitor parents can also check humidity levels and be made aware if their home’s atmospheric conditions are not conducive to good health.


In addition to app alerts, a multi-colored LED ring on the monitor informs users at a glance about the status of their home’s conditions. The ring changes colors as temperature or other levels change. A white light glows if the room is at the programmed temperature. A blue indicates the room is too cool, and amber signifies it is too warm. The brightness of the ring can be adjusted based on preference. This feature ables the device to double as a night light.

This device features smartphone connectivity as well as an LED ring around the product for quick indication of the air quality of your home.

Using the Onelink Home App, users can check a room’s environment, as well as test and silence the monitor. Individuals can simply ask Siri, “What’s the nursery monitor’s temperature?” or “What’s the nursery monitor’s humidity?”. Siri will then answer, keeping families updated whether at home or away.

The device is also compatible with a growing number of HomeKit-enabled devices, making things easy for parents. For example, when the Environment Monitor detects that the temperature in the baby’s nursery is below the preset level, the thermostat would turn up the heat. Since the monitor is Apple HomeKit-enabled, data is always protected and privacy is built in. This allows users to feel secure while benefiting from the convenience of a connected home. The Environment Monitor plugs into a standard electrical outlet. It also contains a back-up 10-year lithium battery in case of power outages.


This device is an essential for the homes of current and expectant parents.

This device has an array of useful features including low-level CO, temperature and humidity sensors and constant accessibility. Features like this allow the Onelink Environment Monitor to provide protection for children and peace of mind for those who care for them.

Check out First Alert’s website for more information.
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