Reliable Security Alerts Anytime, Anywhere - Receive instant notifications when a door or window is unexpectedly opened. Install Shelly BLU on front doors, balconies, or garage entrances and stay informed even when you're not home. Easily integrate it into your smart security scenes for enhanced protection. Smarter Energy Use with Automated Control - Improve your home's energy efficiency by linking Shelly BLU with other smart devices. Automatically turn off heating or cooling when a window is open, ensuring no energy is wasted while maintaining comfort. Minimalist Design, Maximum Flexibility - With its sleek black finish and discreet form factor, Shelly BLU fits effortlessly into any space. Quick and simple to install, it's perfect for a wide range of applications from safeguarding entry points to automating your environment.