It contains two tools one serves to measure the magnetic field and if it exceeds normal magnetic field levels, warn with a beep or an alarm
Starting at 100 uT an alarm sounds
Regarding the WiFi information tool, you can obtain advanced information about the WiFi connection in a simple way. For example: the link speed, the frequency used in Ghz, the IPv4, the SSID the BSSID, the signal strength (RSSI) in dBm and also gives an approximate calculation of the distance to the router