Triplett WiFi Hound 2.4 GHz and 5 GHz Wireless Network/RF Spectrum Analyzer to Visualize and Troubleshoot Wi-Fi Issues for Smart Homes, Businesses, and More (WFHOUND): Amazon.com: Industrial & Scientific
Spectrum Analyzer - MULTI-Module Documentation
2.4G 2.4GHz spectrum analyzer USB portable spectrum analyzer PC | eBay
AirView2-EXT 2.4GHz low cost Spectrum Analyzer from Ubiquiti with external antenna and connector. :: ICD Group, Inc
2.4GHz Portable Spectrum Analyzer USB Dongle
RF Explorer - 2.4GHz Handheld Digital Spectrum Analyzer