I have 4 x T54IR-ZE-S3's and now 6 x T5442T-ZE's
I have several spots with older 2MP HDW2231R-ZS which have no audio.
This spot for example I want to upgrade to have audio. The picture quality is fine currently, but this is a very frequently viewed camera. Should I go S3? Should I save the S3's for low light areas?

I have several spots with older 2MP HDW2231R-ZS which have no audio.
This spot for example I want to upgrade to have audio. The picture quality is fine currently, but this is a very frequently viewed camera. Should I go S3? Should I save the S3's for low light areas?
