Package wavemon

https://github.com/uoaerg/wavemon

wavemon is a wireless device monitoring application that allows you to
watch all important information like device configuration, encryption,
and power management parameters and network information at once.
Adaptive level bargraphs for link quality, signal/noise strength and
signal-to-noise ratio. The customizeable "level alarm" feature that
notices the user of changes in signal level strength audibly and/or
visually. wavemon is able to list of access points in range and shows
full-screen level histogram displaying signal/noise levels and SNR.

Version: 0.9.6