Walk around in your home, office or any place you're connected to an access point.
View signal strength in real time to determen the spots with the best signal.
Above -50db is concidered 100% signal strength.
This also shows you tons of dhcp info such as:
* Signal strength
* Network speed
* Public IP
* Private IP
* Dns1 and Dns2
* Default Gateway
* Broadcast Address
* Router MAC address
* Device MAC address
Note that values from screen shot are not real for security reasons.