Look for the WiFi access point.
This application is intended to display the WiFi access point nearby. It can also be connected to an access point display.
The image of the radar screen, you will see spots and access points. Depending on signal strength, because the position is changed, you know the rough distance to the access point.
Radar is blue, when you tap the access point, you will see information about the access point. It can also be connected to the access point.
Green radar will display the SSID for each channel, change the display position up or down depending on signal strength. This is useful when looking for a free channel.
If you slide the screen left or right to move the radar screens of the two.