The Shelly Bluetooth Door and Window Sensor in black is a smart device that detects the opening and closing of doors and windows. It is also equipped with a light sensor and can measure the angle of opening.

• **Power Supply**: Operated by a CR2032 battery with a lifespan of up to 5 years, included in the package.
• **Connectivity**: Wireless Bluetooth 4.2 technology with a range of up to 30 m.
• **Versatile Use**: Ideal for homes, offices, restaurants, shops, hotels, and more.
• **Operating Modes**: Normal Mode - sends updates every time the door/window is opened or closed along with lighting info and battery status. Beacon Mode - updates every 30 seconds, adjustable through Shelly Smart Control app.

Technical Parameters:

• **Manufacturer**: Shelly
• **Model**: BLU Door/Window
• **Color**: Black
• **Dimensions**: Sensor unit - 35 x 35 x 7 mm ±0.5 mm; Magnet - 35 x 12 x 7 mm ±0.5 mm
• **Weight**: 10 g ±1 g (sensor + battery); 8 g ±1 g (magnet)
• **Material**: Plastic
• **Temperature Range**: -20 °C to 40 °C
• **Humidity**: 30% to 70% relative humidity
• **Power Source**: 1x CR2032 3V battery
• **Battery Life**: 5 years
• **Features**: Reed switch, G-sensor, Light sensor
• **RF Band**: 2400 - 2483.5 MHz
• **Max RF Power**: 4 dBm
• **Bluetooth Version**: 4.2
• **Bluetooth Range**: Up to 10 m indoors, up to 30 m outdoors
• **Encryption**: AES (CCM mode)