1. Comprehensive Protection: Absorbs and grounds surges from antennas on top of buildings, providing complete protection for ceivers, receivers, etc. 2. Safety : Designed with high safety in mind, the built in inflatable arrester elements discharges and grounds the surge when the surge voltage exceeds a specified level. 3. Convenient and Practical: Surge discharge and recovery be repeated as needed. If the arrester components are , they can be easily replaced with components. 4. Superior Performance: The coaxial structure of the surge protector ensures excellent high frequency characteristics, wide bandwidth, low loss and VSWR. 5. Easy Installation: The coaxial surge arrester adopts 1/4 wavelength short circuit principle, good protection. Simple structure, sturdy and easy to install. Specifications: Item Type: Coaxial Arrestor Model: BL-2000 Connector: PL259 Female To PL259 Female Frequency Range: DC~1000MHz Voltage VSWR: less than equal 1.1 Power: 400W Impedance: 50 Ohm Colour:Photo Color Material:Metal Package Contents: 1x Coaxial Surge Protector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.