Roller shutter door remote Two remote transmitters for operation from distance up to 30-50 meters; Built-in Automatic Reversing System-ensures the door returns to position when it meet with an obstruction while in closing mode; Courtesy Light-lights automatically when door is in use; Easy manual disengagement pull cord; Automatic close option; Safety infrared beams; Power supply: 220V/50HZ, 110V/60HZ;
