Am I seeing HF interference?

WHAT PLASMA CUTTERS ARE COMPATIBLE WITH THE ARCDROID™?

NOTE: Currently we cannot guarantee compatibility with High Frequency start plasma cutters.

There is a growing list of compatible cutters on our Community Forum

Most plasma cutters can be used with ArcDroid™ as long as a two wire switch can be provided for turning on and off the torch.

this is what i found about arcdroid and HF plasma cutter you could reach out to BOC and get details from them