The PWR-6LGHS from Mini-Circuits is a USB power sensor that operates from 50 MHz to 6 GHz. It has a dynamic range from -45 dBm to 10 dBm with a measurement speed of 30 ms. It supports automatic frequency calibration & temperature compensation. This Smart Power Sensor is a pocket-sized, 4.95x 1.74 x 1.08 inches, precision test USB HID device (no driver installation required) that turns a Windows or Linux PC into a power meter.