Pocket-sized 4G & 5G Cellular Scanner | PRiSM 

https://epiqsolutions.com/rf-sensing/prism/ - Go beyond simple smartphone apps to get a detailed view of your cellular environment. PRiSM is a self-contained, lightweight scanner and spectrum analyzer that easily connects to mobile devices to provide real-time, deep insight into coverage, interference and benchmarking. PRiSM brings the power of large, expensive engineering tools to cost-effective handheld devices that can readily head into the field. With PRiSM, today’s RF specialists get the tool they need to be productive and agile.