DS-MFJ-812B MFJ-812B VHF SWR-Watt Meter - 144 and 220Mhz - 30/300 Watts

The MFJ-812B VHF SWR-Watt Meter is designed for 144 and 220 MHz operation. It has two power ranges: 30 or 300 watts. It also reads relative field strength from 1 to 220 MHz. It has binding post for a field strength antenna (not supplied). 4 x 2.5 x 3 inches.