The new Eero Signal 4G LTE device is designed to give your business a simple, affordable backup solution that integrates seamlessly with your existing Eero mesh network. Made by the company behind ZDNET's best overall mesh router, Eero Signal automatically provides cellular backup connectivity when your wired internet connection goes down, then returns to standby once service is restored.

If you already have an Eero mesh Wi-Fi network set up, adding Eero Signal couldn't be easier. Simply plug Eero Signal into a compatible Eero device -- USB-C-powered Wi-Fi 6 (or greater) models and the Eero PoE Gateway -- and follow the in-app instructions. Connect Eero Signal to the Eero that's in the room with the best cell service (tip: the higher up and closer to an exterior wall, the better).

Add a subscription plan through the app, and that's it. Then, in the event your primary internet connection goes down, Eero Signal will automatically step in and connect to a cellular network, providing internet backup for your entire system. When your primary internet service is restored, Eero Signal automatically goes into standby mode so it's ready for the next internet outage.

This all happens in the background, so you can stay focused on running your business. It also happens when you're off the clock, keeping security cameras and other infrastructure online during internet outages.