... .Hand-protect function. 2.Motorized,manual, RF remote control; 3.RS232, RS485 control. 4.screen brand: Samsung Introduction:LCD flip device ... '', 21'', other size can be customized. Function:1. Electric control, Flexibility, stability, waterproof and dust proof;2. The screen ... position in this range;3. Motorized type, manual control or RF remote control is available; With RS232, RS485 connectors, can ...