VSWR. Forward and reflected power direct digital readout, without any calibration ^^ 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 counter. Auto to measure DMR/frequency. ^^ All function display (frequency, power, SWR, FW, RW, battery level). With LCD backlight display. ^^ Digital DMR ready.