We've used Defender systems for many years and run a number of their systems and devices. We recently updated to the Defender 4K Sentinel POE system and pleased to have done so! The setup was simple, well documented, great image quality, ease of updates and love the functionality coupled with the Defender Empower App, that we use on both IOS and Android devices.
Love it but.... The set up was simple. The quality so far, so good. The human detection is meh. It keeps telling me every 15 minutes the same tree is a human. Or the bucket in my yard is a human. Trying to figure out the human setting. I wish the scheduling was easier too. Not intuitive. I hope I can figure it out. Follow the YouTube on how to share access. It's wonky. But it works if you follow the video's guidance.
Delivery was on time and nicely packaged.. I have not installed the units yet as I am still taking down my exciting security system, The only issue I would change is the massive weather guards that is on each camera input wire, when installing them on a wall or bulkhead you are forced to drill a 3/4" or larger hole just to get the wire through.. This is a major hole and takes a good sized drill leaving wall damage. The only option is having every camera using a junction box which is clumsy.
Replaced my old nightowl bnc system with this one. Great upgrade. Picture quality is a whole lot nicer. The app to see what is going on at home while your gone is great as well. System looks well made. Cameras have some weight to them and feel like good quality. Forewarning the nvr was set to human detection at first start up and does beep if there is anyone outside in the camera field of view. Kinda scared the bajesus out of us.
Installed in a day and very happy with the video quality. I don't use any detections, it's something I'm still on the fence about but I'll probably work on setting it up soon. Also, there is a way to use the app on the computer though using the software Bluestacks, it's a phone emulator for your computer and it's free.