Air Quality SensorsAlarmsCO AlarmsCO SensorsFirst Alert (Onelink)Humidity SensorsOnelink (First Alert)SensorsTemperature Sensors

First Alert/Onelink Environmental Monitor

  • Monitors temperature, humidity, and carbon monoxide levels
  • HomeKit-enabled to work with your Apple devices
  • At-a-glance color changes alert you to potential problems
  • Easy to set up and use; ideal for baby’s room or a vacation house
  • Battery backup for continued functionality during power outages

The Editor

Editor - Musician, graphic designer and HomeKit aficionado.