Specification: Color: black + silver Material: ABS+ metal Frequency Range: DC~2500MHz VSWR Less than 1.1 Loss Less than 0.2dB Withstand power 200W PEP Voltage at discharge start DC230V±15% Discharge voltage of shock wave(1 x 40)uS 1,000V Withstand current of shock wave(1 x 40)uS 6,000A Repetitive discharge of shock wave(1 x 40)uS 500A, over 500 times DC230V±20% Insulating resistance: DC 100V Over 10,000M ohms Connector: N Male / N female Outer dimensions (Max.value incl.connector): 78W x 41H x 20Dmm Operation: 1. When using the Coaxial Lightning Surge Protector under the eaves, connect it with an antenna cable. For connection, mount a plug(male)connector on both ends of antenna cable. 2. Clinch or solder a copper wire.2.5 to 3.2mm diameters, and connect top end of the wire to lightning escape ground buried deep in the soil ground. It is recommended to connect the item and the ground as short as possible. 3. Be sure to ground lighting protector firmly. It is recommended to refer to a book on grounding or consult with a specialist in the field. (A) Use isolated independent ground. Do not share the ground with power line safety ground which is used to avoid electrocution. (B) Make ground resistance as small as possible. (C) Make ground plate area as wide as possible to allow the plate to contact with earth soil as wide area as possiable by burming wide copper plate. (D)Isolate the ground as far away as possible with other ground. (E) Since the good is not waterproof, locate them on the place where is not expose to direct rain fall or if they may exposed to water, tape them firmly with water resistant adhesive tape. Package Included: 1 x Antenna Surge Protector