Weird TrueAlert model?

I was browsing eBay when I saw a Simplex T371-9308. What is this model? Is it something special?

<LINK_TEXT text=“ … Sw8vNaXWIF”></LINK_TEXT>

I think it is a rebrand. It has no logos on the front.

I’ve seen ones in the wild that have just Simplex (no TrueAlert) and ones that say nothing. Would it be free run or smartsync?

Based on the grille and the lack of TrueAlert branding, it appears to be a model of the QuickAlert series (which is basically what TrueAlerts were called before Simplex got hit with a trademark infringement lawsuit).

I have the same model it is a smart sync device.