Description Perfect to open and control your door automatic with a wide range of accessory that will made your life more easier. This kind of electric door opener can be widely used in residential, sub districts, retail stores, pharmacy, laundry, office, washroom, hospital, air shower, cleaning room and many others Features DC 12V Brushless Motor for a safer operation Surface mounting Push-Go: Automatic activation by pushing or pulling door panel Quiet and aesthetically pleasing Electric strike integration Efficient and cost-effective Internal Control Circuit Board to monitor and control opener operations Gear box is made of steel instead of plastic to extended opener operation life Battery Operation Mode can be activated by battery power for a continuous operation in event of power failure Specification Model: SD3108 Swing Application: One-way, single and double leaf standard doors Power Supply: 220V/AC 110V/AC 50/60Hz Motor: DC 12V Brushless Motor Door Width: 4ft (1200mm) Door Weight: 265lbs (120kgs) Opening/Closing Speed: 2-8 seconds(Adjustable) Opening Time: 0-120 seconds (Adjustable) Hold-Open Time: 1-30 seconds (Adjustable) Environment Temperature: -4 ~ +140?F (-20~ +50?C) Manual Force: 30N Operation Noise: 55db Opener Size: 16.1inch(L)*3.1inch(W)*2.9inch(H) (410mm(L)*80mm(W)*75mm(H)) Packing Size: 16.5inch(L)*7.8inch(W)*4.7inch(H) (460mm(L)*200mm(W)*120mm(H)) Opener Weight: 12lbs (5.5kgs) Package Include: Motor (1 PC) Arms (2 PCs) Remote Controls (2 PCs) Push Buttons (2 PCs) Wireless Push Buttons (1 PC) DC 12V Brushless Motor for a safer operation, Gear box is made of steel instead of plastic to extended opener operation life Surface mounting, Quiet and aesthetically pleasing, Battery Operation Mode can be activated by battery power for a continuous operation in event of power failure Push-Go: Automatic activation by pushing or pulling door panel Electric strike integration, Efficient and cost-effective Internal Control Circuit Board to monitor and control opener operations