Mine the main video signal through the coaxial cable for transmission of video signals related to lightning protection equipment, such as video surveillance systems, security systems. Main features: 
 ★ flow capacity 
 ★ Multi-level protection 
 ★ core components adopt international famous brand, excellent performance 
 ★ fast response 
 ★ excellent signal transmission performance 
 ★ residual depression 
 ★ simple structure, easy installation and maintenance