Designed to detect opening or closing of doors/windows and report them immediately, triggering home automation scenarios accordingly. Can also measure tilt angle and luminosity. To use this device with Shelly smart control app, a gateway is necessary. Compatible gateways are Shelly BLU Gateway, or any Shelly Plus, Pro or Gen3 device (excluding sensors). Works with - Matter - Amazon Alexa - Apple HomeKit - Google Home - iOS App - Android App No Additional Anti-Tamper/Vandal Properties Detects & Reports opening or Closing of Doors/Windows Measures Tilt Angle & Luminosity Easy Control Through Shelly Smart Control App Can Be Integrated Into Automation Scenarios & Scenes Hub Not Required Works with - Matter - Amazon Alexa - Apple HomeKit - Google Home - iOS App - Android App No Additional Anti-Tamper/Vandal Properties Detects & Reports opening or Closing of Doors/Windows Measures Tilt Angle & Luminosity Easy Control Through Shelly Smart Control App Can Be Integrated Into Automation S...