Also it's strange that only a single 820A is on sale. If I wanted to buy 8 x 820A then I will have to buy the single ones 8 times to bring the price to $842.32 whereas a 2 pack of 4 (total 8) has no discount and the price is $93.60 more.duhastvielgeweint wrote: ↑ What's the difference vs the 820A which seems to be on sale?
I bought a few Dahua IPC-HDW2431T-AS-S2 of eBay and they been really good and ate not that expensive.
When i first got my 510s (which i bought for person detection) i felt the same way - was livid - and motion zones didnt work. BUT..i contacted support about zones and they sent a link to a different firmware, and since then its been pretty good. The low light performance isnt great, but my particular areas are lit by outside lights. The 510 cost me about 200 for 3 cameras, so im pretty happy with that, all considered.
Check out ubiquiti. The gen 2+ cloud key ($240) will support 50+ cameras, upgradable to 5tb HDD ($250). Cameras range from $180-560. No monthly fees.fpenguin wrote: ↑ Any recommendation for 32 channel NVR that would be compatible with these newer cameras?
Our building has 28 poor quality cameras (a mix of analog 480/720 cameras, and very few 1080 IP cameras) connected to Hanwha Techwin NVR, which I hate their software so much. I got quoted $450 / camera for their 4mp IP cameras, and I'm fed up with this brand.
My issue is less with zones and more with false alerts. I can have a bug or a shadow move and create repetitive alerts whereas a person could walk up my driveway and possibly not trigger it. I've found no balance with sensitivity, either it's insensitive with no alerts or overly sensitive with way too many.stilltippin wrote: ↑ When i first got my 510s (which i bought for person detection) i felt the same way - was livid - and motion zones didnt work. BUT..i contacted support about zones and they sent a link to a different firmware, and since then its been pretty good. The low light performance isnt great, but my particular areas are lit by outside lights. The 510 cost me about 200 for 3 cameras, so im pretty happy with that, all considered.
When I checked for firmware updates it said I had the latest - but support send me something that worked perfectly. I don’t think I’ve had false alerts actually. Really good with motion or car or people alerts (in the sense it distinguishes which it is).
At night the fps gets cut in half to 12fps and the ir lights get activated, image is black and white. Car and people detection is good but you need to dial in the sensitivity. I don't use any notifications.
