The Speco SPCOAX2 Coaxial Video Surge Protector is designed to safeguard your analog HD surveillance cameras, including TVI, CVI, AHD, and CVBS models. Featuring a BNC male to BNC female connection, it ensures seamless compatibility and easy installation. This protector complies with IEC 61000-4-5 standards and includes built-in EFT (impulse noise) lightning protection, offering reliable defense against electrical surges. Sold individually, it's best used in pairs to fully shield both your camera and recording equipment. Secure your surveillance setup with this essential protector today!