**Product Specifications:**
**Brand:** linptech
**Model:** WD2-BB(MI)
**Features:**
- Intelligent motorized push window opener for flat open windows
- Requires BLEMesh gateway for operation
- Compatible with two-push or three-push diamond mesh screens
- Adjustable length to fit window widths of 40-65cm
- Battery-powered with solar energy charging for long-lasting usage
- Supports external solar panels for efficient energy supplementation
- Safety features include anti-pinch and emergency stop functions
- Maximum push-pull force of 100N
- Child lock function for added safety
- Smart linkage capabilities with BLEMesh protocol for seamless integration with other devices
- Rain sensor for automatic window closure in case of rain
- Smoke sensor for automatic window opening in case of high indoor smoke concentration
- Home mode for one-touch closing of all windows and curtains
**Specifications:**
- Thickness: 28mm
- Diameter: Φ5.5mm
- Length: 300mm
- Width: 22mm
- Height: 48mm
- External solar panel dimensions: 168x89.59x12.7mm
- External solar panel open circuit voltage: 5V
- Input: 5V--2A
- Output power: 10W
- Maximum extension range: 372-650mm
- Operating temperature: 0°C~45°C
**Additional Information:**
- Installation requires drilling holes
- Recommended for indoor use only
- Not suitable for installation on the outer side of windows
- Child lock feature prevents accidental window operation
- Supports various control methods including voice, app, wireless switches, and sensor linkage
**Safety Precautions:**
1. Do not extend body parts outside the window while in operation to prevent accidents.
2. Ensure the window width is within the range of 40-65cm.
3. Use the provided solar panel only with linptech products.
4. Avoid exposure to water as the device is not waterproof.
5. Use in temperatures between 0°C to 45°C for optimal performance.
**Note:** The above specifications are based on the linptech Intelligent Motorized Push Window Opener WD2-BB(MI) model.