RF Power & SWR meter for 1.8-525Mhz - HF / VHF / UHF 200W For Amateur / Ham Radio, Commercial, Marine, AIR & CB Two-Way Radios. Reads Power & SWR up to 200 Watts. 5 Watt, 20 or 200W power ranges. Frequency Range of 1.8 to 525Mhz covers, HF, VHF & UHF! Average/P.E.P Select. SO-239 Connecters for input. Meter Illuminates if Optional 12Vdc is connected.