The BTL-C08 from NexTek, LLC. is a RF Surge Protector with Frequency 820 MHz to 2.2 GHz, Input Power 2000 W, Insertion Loss 0.05 to 0.1 dB, Operating Temperature -40 to 90 Degree C, Operating Voltage 0 to 65 V. More details for BTL-C08 can be seen below.