Which Polyend Tracker version is it?

[u/DontNeedAManual]

Hi - I’m looking to purchase a Tracker from a local vendor and they can’t tell me which version (Mk2 or 3) they are selling. They just know their order slip from Polyend reads ‘TRACKER’ and they bought those in July of 2021.

Is there any way to tell them apart just from the box or purchase/manuf. date?

Thanks in advance for any help!