Dimensions:155Wx63Hx103Dmm Weight:540g Frequency range:140 to 525MHz Power display range:5W 20W 200W Accuracy at full scale:5W Range 10%(F.S),20W Range 5%(F.S),200W Range 5%(F.S),(Add -10% of full scale at 220 to 420MHz,add +10% of full scale at 450 to 525MHz) Minimum power at SWR measurement:4W Insertion loss:Less than 0.1dB(140 to 250MHz) Less than 0.2dB(400 to 470MHz)/less than 0.3dB(525MHz) Measurement function:Forward RF power,Reflected RF power,SWR,PEP monitor Connector:M-J/N-J