The surge protector is a coaxial lightning arrestor, which is made of high-quality materials. This product is specially designed to absorb the surge of lightning strikes on an antenna at the top of a building and ground, to better protect transceivers,receivers,etc.Features:Coaxial Lightning Surge Protector - Full-band lightning protection( DC-2500MHz).Adopts 1/4 wavelength short circuit principle to achieve lightning protection.Made of high-quality ABS and metal, strong and durable.Delicate lightning arrestor to better protect transceivers,receivers,etc.Easy to install and use.Specification:Type: Lightning Surge ProtectorFrequency range: DC-2500MHzImpedance: 50Connector type: N-head (J-K)Standing wave coefficient: 1.1Peak power: 400WFlow capacity: 50KAInsertion loss: 0.2dBInterface: N Male to N FemaleMaterial: Metal + ABSWeight: Approx. 115g / 4.1oz Size: Approx. 8 * 4.5 * 2cm / 3.1 * 1.8 * 0.8inPackage list:1 * Lightning Surge ProtectorNote:Please allow slight error due to manual measurement. Thanks for your kind understanding.