Comprehensive Protection: Absorbs and grounds lightning surges from antennas on top of buildings, providing complete protection for transceivers, receivers, etc.、Safety Guarantee: Designed with high safety in mind, the built in inflatable lightning arrester element discharges and grounds the surge when the surge voltage exceeds a specified level.、Convenient and Practical: Surge discharge and recovery action can be repeated as needed. If the lightning arrester components are damaged, they can be easily replaced with new components.、Superior Performance: The coaxial structure of the lightning surge protector ensures excellent high frequency characteristics, wide bandwidth, low loss and VSWR.、Easy Installation: The coaxial lightning surge arrester adopts 1/4 wavelength short circuit principle, good lightning protection. Simple structure, sturdy and easy to install. Material: Iron Model: BL-2000 Connector: PL259 female to PL259 female Frequency range: DC to 1000 MHz Voltage standing wave ratio: ≤ 1.1 Peak power: 400 W Impedance: 50 Ohms