These real time notifications allow you to handle the situation from wherever you are – you won’t always be home when disaster strikes – and contact local emergency services if necessary. Our testers determined that Nest Protect was by far the easiest to set up, mount and connect because of its intuitive design and clear instructions. It took just a few minutes from opening the package to having a fully functional smoke detector ready to go. After you connect this Wi Fi smoke alarm to the internet, you can control, monitor and test the device remotely though a useful mobile app. The app also tracks battery life and allows the unit to test itself on a monthly basis. At night, the Nest Protect can detect movement and light levels nearby, allowing it to turn on a nightlight when you get up to visit the bathroom.