Intelligent Control System: Our door opener, Lfhelper Automatic Door Closer, is equipped with a microcomputer intelligent control system that ensures precise control of operating time, angle, and strength. It learns the door opening angle in place, has rebound sensitivity when encountering resistance, and offers simple and intuitive parameter debugging. Weather-resistant & Durable: With overcurrent, overload, and short-circuit protection, this door opener is super rainproof, making it suitable for outdoor use. The high-quality motor ensures stable operation, while the aluminum alloy and stainless steel construction provide exceptional strength and durability. Ideal for Various Applications: Lfhelper Automatic Door Closer is very suitable for door security in many places, such as supermarkets, hospitals, offices, meeting rooms, laboratories, unit doors, etc. It’s a perfect solution for automatic swing door opening and closing in these locations. Customizable Settings: This door opener allows you to adjust the open angle (90°), open/close speed (1-9 gears), and open hold time (1～99 seconds) to suit your specific needs. With a wide range of operating temperature (-20℃～60℃) and humidity (30%～95% without condensation), it’s suitable for various weather conditions. Compact & Easy to Install: With a small external size of 360mm x 83mm x131mm, this automatic swing door opener is easy to install in various flat-open doors with a width ≤ 1600mm. It generates low operating noise (less than 50db), making it a discreet addition to any space., Weight: 18.959754532 Pounds, Manufacturer: Lfhelper