Helmet Assisted Radar Detection, H.A.R.D. System V, is a wireless system manufactured by Adaptiv Technologies for motorcyclists needing to know when their radar detector is alerting them of a radar threat.
This is the Transmitter Only Module which is listed here for replacement requirements. If you Have a Beltronics or Escort or Valentine One or Radenso XP which your wanting to use on your bike; then you will require
the Complete HARD system which can be found here https://www.radardirect.co.nz/product/h-a-r-d-system/