JJN's WAM-X25 is the highest standard in the category of detecting eavesdropping and all kinds of wireless transmissions.
Counter Surveillance Equipment, ComSec LLC
WAM-X25 Wireless Activity Monitor
WAM-X25 JJN DIGITAL Radio Frequency Activity Detector and Monitor
Wireless Activity Monitor, WAM-X10, JJN
WAM 108t Multiband Wireless Activity Monitor, 2.4GHz & 5GHz
Handheld Wireless Activity Monitor - 3G/4G/5G, 0-14 GHz, WiFi
powerful handheld multi channel wireless activity monitor
A survey on state of the inter body radio communication channel
powerful handheld multi channel wireless activity monitor
Spycraft UK the New WAM-X10 compact 5G cellular monitor
Baby Monitor 3G/4G/5G/Wi-Fi on the App Store
WAM-X25 Handheld Wireless Activity Monitor 0-14 GHz
WAM-X25 Wireless Activity Monitor
Spycraft UK the New WAM-X10 compact 5G cellular monitor
WAM-X25 Rilevatore 0-14 GHz Fino a 5G Wifi Bluetooth - Doctorspy