Features: Comprehensive Protection: Absorbs and grounds lightningSurges from antennas on top of buildings, providing complete for protection for transceivers, receivers, and more. Safety guarantee: The built-in gas-filled arrester element is designed with high safety in mind, when surge voltage exceeds the specified level, surge is discharged and grounded. Convenient and practical: surge discharge and recovery actions can be repeated as needed. If the arrester assembly is damaged, it can be easily replaced with a new one. Superior performance: The coaxial structure of the lightningSurge protector ensures excellent high frequency characteristics, wide bandwidth, low loss and VSWR. Easy installation: The coaxial arrester adopts the principle of 1/4 wavelength short circuit, and has goodLightning for protection performance. The structure is simple, sturdy and easy to install. Specifications: Item Type: Coaxial Arrester Material: Stainless Steel + Copper Model: BL-2000 Connector: PL259/for M Female to PL259/for M Female Male to Female Frequency Range: DC~1000MHz Voltage Standing Wave Ratio: ≤1.1 for Peak Power: 400W Impedance: 50 ohms Package Includes: 1x Coaxial Surge Protector note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.