The LB4XX Series USB power sensors from LadyBug Technologies LLC combine a power sensor and detector electronics for making power measurements from 10 MHz to 10 GHz. The tiny instruments are just 2.25 inches long but measure power levels from -65 to +20 dBm. They are supplied with a stand-alone Windows-compatible software package and connect to a personal computer via a USB cable. They are also compatible with the LabVIEW graphical measurement software from National Instruments ( For more information on these tiny sensors/meters, visit the company's web site at