Purchased this system to keep an eye on our camp. Install of cameras and wire routing was fairly straight forward, you will quickly identify if you have grabbed the wrong end of the cable for the camera. We installed all 4 cameras connected them to the DVR and plugged in the power, it was very rewarding to have the setup screen flash on with images from the 4 working cameras in the background. Set up of the software was okay following the provided instructions, getting the app set up for remote viewing from the phone was a fairly simple process with a QR code. After that, your on your own, and much of it is not that intuitive, but there is plenty of Youtube videos and other forums for operating the system. The cameras are decent quality and the DVR seems solid enough. But time will tell.

My seven year old 900TVL 16 camera system from a company that is no longer in business had the hard drive fried by lightning. I had been eyeing this Defender 4k 16 camera system and this gave me an excuse to buy it! I had upgraded the wiring when I installed my old system, so it worked great w/ the Defender 4k system. The cameras are very clear and the night vision is much better than my old system. The zoom feature also works well. Unlike my old system, the system lacks viewing remotely on a PC. I tried viewing remotely from a 7th generation Fire 10 tablet and it worked, but works much better on my 9th generation Fire 10 tablet. Overall, a very nice high quality security system at a bargain price!

Specs describe the camera at 15 FPS capability. Other systems I was looking at were only 7. Once I was into settings, was disapointed to find that 8 Frames per second was the max that it seems like it can handle. It has a 15 FPS feature, but only in the substream. still a decent quality camera. Instructions for getting the mobile app to properly work were not the best, but tech support walked me through it. Would be nice if one camera came with an audio feed, since the DVR supports it.

This is actually my second Defender security system. I loved my 8 channel 4 camera HD 720p system I bought years ago so much that when I decided it was time to upgrade to newer equipment I knew I trusted Defender and was unsure I would like any other security system so I bit the bullet and got the 4k 16 channel system with 8 cameras. It took me a while to set it up because my old system was still working so I had the luxury of waiting for cooler days to run the cables through my hot attic. I'm very impressed. I knew that the 4k should be clearer and easier to zoom into but when I actually plugged it in I was shocked how much detail I had been missing. The system almost has too many controls. I'm still learning all of the new features. I will say that the outside cameras brightness was set to be to dim at first but thankfully it was an easy adjustment to make them brighter. I assume to is some auto adjustment due to the sun since the indoor cameras default setting looks great. I already know I will have many years of quality use with my new Defender system and I look forward to buying another one in the future.

We previously had security cameras but the manufacturer went out of business and no longer gave support for them. After researching several brands I decided to give Defender a try. Delivery was delayed several days but when they arrived I had them installed and was very pleased with the clarity of the picture making me feel i made the best choice!

I was upgrading my system to 4K and was looking online and saw this deal for the system and 8 cameras. I installed the DVR and it saw my old cameras and seemed to work fine. I am slowly installing the 4K 8MP cameras as I have time. I had purchased another brand PTZ camera and had a problem with the video blanking out. Called Defender support and when I mentioned other then their brand camera they DO NOT SUPPORT anything but their brand no matter the issue. Even though the camera was supplying video to the DVR and the video on the DVR blanked out they didn't want to here it. I think the manual should be more in-depth for those who aren't novices. Other then that support was good and I am happy with it so far.

Se ven muy bien pero cuando pasó una grabación no puedo hacerlo rápido y si busco algo que pasó nesecito saber la hora exacta y si no la sé tengo que estar todo el día mirando la grabación.y lo otro es que no tienen volumen pensé que era algo normal que todas la tenían.

Still learning how to navigate through the settings....previously had Swann wifi system, but the wifi kept cutting out. Miss the sound option. Defender 4k should have had audio. Wish the continuous stream showed "red" events on the playback timeline - overall the video quality is great, and like the fact that you can zoom into the images. Good value for the buck!!

Previously had 964H cameras from another company. Read most reviews and decided to try this system, as I had already had the BNC cables run throughout my home. The resolution blows my old system out of the water. Would definitely recommend as the quality with price point is definitely a great value.

GREAT system. I upgraded from the older 1080 I bought about 5 or more years ago. The older cameras were metal where these are plastic. The picture is INCREDIBLE! The night vision on the older cameras was better. Set up was great. Still need to hook to the internet and that will be all. Over all, great system!