







🔐 Stay connected, protected, and energy-smart with Shelly Blu!
The Shelly Blu Door/Window Sensor is a sleek, Bluetooth-enabled smart sensor that monitors door and window status with tilt angle and luminosity detection. Powered by a long-lasting 5-year lithium battery, it delivers real-time notifications and integrates seamlessly into home automation systems to enhance security and energy efficiency. Compact and easy to install, it’s designed for modern smart homes seeking reliable protection and smart energy management.






| Manufacturer | Shelly |
| Part number | 660 |
| Item Weight | 22 g |
| Product Dimensions | 0.7 x 3.5 x 3.5 cm; 22 g |
| Batteries | 1 CR2430 batteries required. (included) |
| Item model number | 3800235266601 |
| Color | White |
| Power source type | Battery Powered |
| Item Package Quantity | 1 |
| Plug Profile | Wall Mount |
| Included components | 1x Shelly Blu Door/Window White |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Ion |
| tech_spec_battery_description_toys | Lithium |
| Battery life | 5 years |
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