Gam3Gear Surecom SW-102 Digital VHF UHF 125-525Mhz Power & SWR Meter VSWR. Forward and reflected power direct digital readout, without any calibration. NOTE: DOES NOT compatible with Digital Radio. Maximum measurable power range up to 120W. Low insertion loss (0.3 decibels or less) structure allows it to be permanently connected. Build in Frequency country . Interface: N-J Interface Frequency range: 125 - 525MHz. Version: 4.5