Using the First Alert App

The First Alert app is used by the customer to control the thermostat

The First Alert App by Resideo is used by the customer to control and manage the thermostat after installation. During setup, the installer may guide the customer through connecting the thermostat to the app to enable remote control and monitoring.

Once connected, the customer can use the app to adjust settings, receive alerts, and manage the thermostat from their mobile device.

For more information, visit: info.honeywellhome.com/first-alert-app


Key App features

Device Control

Allows the customer to adjust temperature settings and system modes remotely using their mobile device.

Smart Home Integration

Supports integration with compatible smart home platforms for expanded control.

Connected Device Management

The app allows the customer to manage multiple compatible Resideo devices from one interface.

Professional Support

Customers can connect with their professional through the app to help coordinate service, support, and system upgrades.


The First Alert App is regularly enhanced and the screen display may differ from that shown.

Setting Up the App

Scan to download the First Alert App

Touch the icon below to download the First Alert App:

To add the thermostat to the app, select MENU > Connect to App and follow the instructions to connect.


Use First Alert App to Remotely Control ElitePRO™ Series Thermostats

Use the First Alert by Resideo App to control your ElitePRO™ Series Thermostats while you're away from home or your business.