No, S3 is the new chipset, that improves upon the already great 5442 camera. It is the same camera on Amazon and his website.
2023 Dahua Best Buy Choices
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flynreelow
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thanks mate.
Not yet, but here is one to the brother Z4E (simply more optical zoom than the ZE). You can expect the improvements to be comparable.
Mini-Review - 5442-Z4E-S3 AKA B54IR-Z4E S3 - Replacement to the 5442-Z4E
As many of us are aware, Dahua decided to keep the same model numbers of some of their most popular models like the 5442-Z12E and the 5442 series cameras, but they have been updated with a newer GUI and specs that on paper show better than the previous version as was discussed in this thread...
looney2ns
IPCT Contributor
duplo
Getting comfortable
newer cams have less.
With any new update/model it will filter any animals better than before.
5YMUB5DH7N
n3wb
As pointed out in post #21 above, they have improved the model with a new chipset and GUI that basically makes it a different camera. The optics are greatly improved.
Mini-Review - 5442-Z4E-S3 AKA B54IR-Z4E S3 - Replacement to the 5442-Z4E
As many of us are aware, Dahua decided to keep the same model numbers of some of their most popular models like the 5442-Z12E and the 5442 series cameras, but they have been updated with a newer GUI and specs that on paper show better than the previous version as was discussed in this thread...
duplo
Getting comfortable
have you already tested the new acupick features ?As pointed out in post #21 above, they have improved the model with a new chipset and GUI that basically makes it a different camera. The optics are greatly improved.
Mini-Review - 5442-Z4E-S3 AKA B54IR-Z4E S3 - Replacement to the 5442-Z4E
As many of us are aware, Dahua decided to keep the same model numbers of some of their most popular models like the 5442-Z12E and the 5442 series cameras, but they have been updated with a newer GUI and specs that on paper show better than the previous version as was discussed in this thread...ipcamtalk.com
not sure what to expect from this feature
Unfortunately one needs an NVR with that capability to use it. The promo video looks pretty cool for it though.
In theory you should be able to pull up a person or a vehicle and it will pull up snapshots of every time that person or vehicle was spotted on the camera.
duplo
Getting comfortable
i can imagine that it will work somehow in color mode. But in B/W its even hard for a human to distinguish between two persons with similiar body/clothes.
@EMPIRETECANDY - can you also recommend the best dome camera varifocal for no/dim light situations please? thanks!
flynreelow
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why do u want a dome?
H. Swanson
Getting the hang of it
When can we get a 5482 with 1/1.2" sensor? 
Turret would have my preference, but I'm leaning to a dome for anti-vandalism and because it will be mounted on a ceiling (2,5m) near the front door.