Aaronia HFXFRPro Spectran V4 Outdoor RF Spectrum Analyzer Laptop 1 MHz - 9.4 GHz is portable and rugged, measuring the frequency range 1 MHz - 9.4 GH. It is ideal for the dusty and dirty environments of military operations, construction sites, mining locations, and field research and development. Intense heat, extreme cold, and even the pouring rain are no match for the XFR Pro. The HF-XFR PRO has been independently tested in accordance with MIL -STD- 810G, IP65 and MIL -STD- 461F. These durable PC-based analyzers offer the unique combination of an incredibly impact- and weather-resistant outdoor notebook, with a top of the line spectrum analyzer fully-integrated for convenient portability and field use.