1.Euro CE & ISO Certificate 2.Magnetic or Mechanical limited Switch 3.2 Leaves motors,1 Control Box 4.300KGS,500KGS,600KG ... , 50Hz or 110V, 60Hz. 2). European Union CE Quality Certificated.3). Operating time protection can be setted.4). External Control Box ... .5). Terminals for Back-up battery(24V DC), wireless wall switch, and infrared photosensor.6). Time delay is available.7). Automatic ...