Suit for All 35mm tube of roller shutters Soft gauze shade, peacock shade, etc. Global independent innovation. Electronic limits with proven reliable and incomparable quality 1. Noiseless design tubular motor 2. Max width: 2.5 meters, no height limitation 3. Max weight: 40kg 4. Φ35mm diameter, AC motor, built in receiver 5. Stable and reliable high precision electronic limit, upper position and down position limit can be simply programmed by hand held remote 6. A third intermediate position point can be programmed where you could stop the blind anywhere by one press 7. Easy to install, easy to operate 8. Dry contact port with detachable terminal connector for different wiring control applications 9. Wifi tubular motor, built-in tuya with ESP8266 module