Features: 1.Use coaxial lines to transmiss the real time digital signals, transmission distance max up to 220m. 2.Fast and easy to install, save the cables, the installation cost and time. 3.Convenient to use. Passive device, no power required. 4.Built in surge protection, safety in use. 5.The traditional coaxial line analog camera system is upgraded to the network HD camera, both of which can be replaced directly. Specification: Features:_x000D_ _x000D_ Use coaxial lines to transmiss the real time digital signals, transmission distance max up to 220m. _x000D_ Fast and easy to install, save the cables, the installation cost and time. _x000D_ Convenient to use. Passive device, no power required. _x000D_ Built in surge protection, safety in use. _x000D_ The traditional coaxial line analog camera system is upgraded to the network HD camera, both of which can be replaced directly. _x000D_ _x000D_ Specifications:_x000D_ Video: PAL, NTSC, SECAM_x000D_ Standard: IEEE802.3 10base-T_x000D_ Speed: 10/100Mbps_x000D_ Longest Distance: 220M_x000D_ Cable: Coax Cable (RG59)_x000D_ Working Temperature: -20 to +70 _x000D_ Storage Temperature: -40 to +150 _x000D_ Humidity: (non-condensing) 0-95 Percent_x000D_ Size: 2.0*7.5*1.8cm/0.8*3.0*0.7in (Cable Excluded)_x000D_ Pacakge Weight: 49g/1.7oz_x000D_ _x000D_ Package List:_x000D_ 1 * Pair Passive IP Network Coaxial Transmitter