Diamond Original SX-200 1.8-200 MHz Illuminated SWR/Power Meter, Power Ranges: 5/20/200 Watts, Connector: SO-239 (UHF Female) Frequency: 1.8-200 MHz Power Ranges: 5/20/200 Connector: SO-239 Min. Power SWR Test:: 4W 6"W x 2"H x 4"D, 2 lbs.