Wireless Network Watcher - scans your wireless network and displays the list of all computers and devices that are currently connected to your network.
Waircut - Free network audit app
inSSIDer - inSSIDer Essential makes it easy to maintain small business WiFi.
Ekahau HeatMapper - The Free Wi-Fi Coverage Mapping Site Survey Tool
Aircrack-ng - Aircrack-ng is an 802.
iBwave Wi-Fi - iBwave Wi-Fi software suite brings smart networking solutions to enterprise, education, hospitality, transportation, retail, office, healthcare, public venues, and residential wireless networks.