Setting up the small Sensibo Sky device is simple. You plug it in and can stick it to the wall if you’d like. You pair it through your air conditioner’s infrared sensor—meaning your unit needs to support a remote control to work. Then you connect the Sensibo Sky to your home W-Fi and download the Sensibo app, available for iOS or Android (and as a web app if you’re not at a mobile device). The app is rich with features—besides basic A/C operation, you can create schedules and set up temperature adjustments based on your phone’s location or the weather around your house. The Sensibo Sky is compatible with Alexa and Google Home, but it doesn’t stop there. Its open API allows for a number of community-built integrations with services that aren’t officially supported, like Samsung’s SmartThings and, indirectly, Apple’s HomeKit. You can also set up your own automated tasks through IFTTT.