Simple Spectrum Analyzer with Antenna USB Cable A Type 2.4G Frequency Handheld Mini 0.96inch LCD Screen Signal Measurement: Amazon.com: Industrial & Scientific
Review: WiSpy 2.4i spectrum analyzer for 2.4GHz
2.4G 2.4GHz spectrum analyzer portable USB spectrum analyzer for windows | eBay
Amazon.com: Global Marketing Partners Wi-Spy DBx - USB Spectrum Analyzer (No Software Included) - 2450X3V : Electronics
Simple Spectrum Analyzer with Antenna USB Cable A Type 2.4G Frequency Handheld Mini 0.96inch LCD Screen Signal Measurement: Amazon.com: Industrial & Scientific
Tektronix RSA507A 9kHz-7.5GHz Portable USB Real Time Spectrum Analyzer