Different models of Chime? 100NAS vs 100PAS?

[i30_Vancouver]

I recently bought the Arlo Video Doorbell and planning to buy the Arlo Chime as the builder didn't wire the old doorbell to the mechanical chime, was going to an old intercom.

Looking online Amazon, I've found 2 model numbers: AC1001-100PAS (cheaper) and the AC1001-100NAS.  Are there any functional differences between the two?  Didn't find any answers googling around for both numbers.

[michaelkenward]

Those bits on the end, PAS and NAS, usually tell you which market the thing was made for.

For example, UKS = UK while NAS = North America and EUS could be Europe.