This is the Delta S: a powerful counter-surveillance device that can find hidden smartphones, Bluetooth, and GPS trackers all around you. It can detect GSM, 3G, 4G / LTE, 5G, WiFi, and other devices. You can use this device to find RF spying devices up to 6GHz. It has a sweeping speed of 8GHz per second.
The Delta S can analyze WiFi 2.4 & 5 GHz bands. It has a background masking function to ignore signals from base stations, televisions, and other authorized devices. Delta S can maintain an unlimited number of logs. It is designed to be powered by a laptop or tablet. In fact, it magnetically attaches to those devices. It has an audio alarm to alert you to threats.[where to get it]