Name:Automatic Roller shutter/Rolling Door opener Usage:roller door opener Material:Aluminum alloy and ABS Install position:side of rolling door type of limit switch:Mechanical limit switch Power supply:220v~240v/50Hz Gross weight:7kg Max. lift weight:50kg Motor:6N, 7N, 8N Frequency:315/433.92 MHz I need 100 engines in Saudi Arabia Show More