The AcuRite 3-sensor indoor and outdoor temperature & humidity smart home environment system with my AcuRite offers a great way to monitor vital conditions in three locations in and around your property. Knowing indoor temperature and humidity helps you optimize and maintain indoor air quality and conditions. The outdoor temperature & humidity sensor transmits outdoor conditions. The smarthub streams sensor data to the my AcuRite cloud, where you can access all your monitored conditions on a web browser or your favorite mobile device, and set alerts for when things need your immediate attention. Limited 1-year warranty.