kwavecontrol is a kde-monitoring tool for wireless devices showing diverse information like signal quality, bitrate, e.g.
Category:   Software > Monitoring/Scanning

WiFi Hopper is a WLAN utility that combines the features of a Network Discovery and Site Survey tool with a Connection Manager.
Sporting a comprehensive arsenal of network details, filters, RSSI graphing and built-in GPS support, WiFi Hopper is invaluable for identification and advanced characterization of neighboring wireless devices.
Additionally, WiFi Hopper can connect to unsecured, WEP, WPA-PSK and WPA2-PSK networks directly from within the application. With editable network profiles and dedicated Connection Manager execution mode, WiFi Hopper can be used as a significantly more transparent replacement for Windows and manufacturer-provided wireless clients.
Category:   Software > Monitoring/Scanning

WiSentry creates a secure buffer-zone between your WLAN and the internal wired network. With WiSentry, IT organizations can authorize 802.11 wireless devices for trusted access and lock-out all other devices. WLAN hackers and network intruders are identified and barred access from the wired LAN. Unsecured wireless access points are detected immediately, allowing for removal of the access point before network security is compromised
Category:   Software > Monitoring/Scanning

Grasshopper[tm] is a handheld, wireless receiver designed specifically for sweeping and optimizing Local Area Networks. The instrument measures coverage of direct sequence CDMA networks which operate on the IEEE 802.11b standard allowing the user to measure and determine the AP (AccessPoint), PER (Packet Error Rate) and RSSI signal levels aiding in locating the hub and access points throughout a building. Grasshopper detects and differentiates from narrow-band multipath interferences such as microwave ovens and frequency hopping systems and features a built-in display, keypad and removable battery pack for true portability.
Category:   Software > Monitoring/Scanning

Link Logger is the premier Windows logging tool for the Linksys, Netgear, ZyXEL Prestige and ZyWall routers and firewalls.
Category:   Software > Monitoring/Scanning