Available as an assembled Module and as a DIY project.
This Module is currently available.
Specs are approved by the manufacturerSandpaper Module
Sandevistan is a two-channel piezo contact microphone instrument. It features a square of 50grit sandpaper adhered to the front panel for greater sonic exploration, an input for external contact mics and other audio sources, and infrared LED based active distortion.
These merchants probably sell this module. Huh?
