A straightforward video multiplexer designed for reliable analog surveillance with quick installation and stable long distance transmission. Key benefits Quick setup: plug and play installation requires no complex settings or debugging, so systems can be deployed fast. Multicamera handling: supports up to 4 analog camera video signals simultaneously, enabling centralized monitoring from multiple inputs. Flexible output modes: allows single channel pass through or 3 channel superimposed signal to suit different monitoring and recording needs. Improved signal stability: modularbased antiinterference design reduces noise and preserves picture clarity in environments with electrical interference. Longrange performance: transmitter and receiver support distances up to 400 meters, suitable for installations where cameras and monitors are far apart. Features and compatibility Function: multiplexes and transmits analog video signals for combined viewing and longdistance delivery. Compatibility: works with standard analog surveillance cameras and systems that accept multiplexed video feeds. Design: modularbased construction focused on interference resistance and reliable signal handling. Performance: simultaneous 4 channel transmission, selectable pass through or superimposed output, and sustained video quality over long cable runs. Practical applications Retail or small business surveillance: combine multiple analog camera feeds into a single monitor for centralized instore monitoring without rewiring complex systems. Remote property or perimeter monitoring: place cameras across a large site and transmit video up to 400 meters to a central control room or recorder. Warehouse or industrial facility: reduce signal degradation in electrically noisy environments while preserving combined camera views for security staff. Why choose this unit Solves the need for simple, reliable multiplexing and transmission of analog camera signals without technical setup overhead. Provides flexibility in output presentation and supports long cable runs while minimizing interference. Useful wherever multiple analog cameras must be viewed or recorded from a single location with minimal configuration.