POWER METER USB 50MHZ 20GHZ; Test Frequency Range:50MHz to 20GHz; Power Measuring Range:-40dBm to +20dBm; Measurement Speed:2000 readings / second; Product Range:PSM4000 Series; Amplitude Accuracy:± 2.6%; Connector Type:3.5mm Plug; External Depth:48mm; External Height:74mm; External Width:74mm; Standing Wave Ratio:1.2:1 1.29:1; Weight:163g