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Customer reviews for Defender AI POWERED Sentinel 4K Ultra HD Wired 16 Channel NVR Security System with 16 Metal Cameras for
Defender AI POWERED Sentinel 4K Ultra HD Wired 16 Channel NVR Security System with 16 Metal Cameras
4.6 out of 5 stars
stars92 ratings92 reviews
  1. 5 stars66% (61)
  2. 4 stars33% (30)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star1% (1)

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Showing 1-10 of 92 reviews
Aug 10, 2025
Shirish Patil
5 out of 5 stars review

Excellent Security Camera System

Excellent Security Camera System to protect your home. I have been a long time Defender systems user and love them. These model specifically has wide angle cameras and great night vision capabilities. the sensors work great and picks up movements immediately. If you are using for inside the home, i would recommend to turn off the lights for night vision. Access from app works nice and very quick/easy to setup. Audio feed, although works only from one camera at a time, is a good feature to have.

Review from defender-usa.com
Helpful?326IA7VZEYHS16767357368
May 13, 2024
Anonymous
5 out of 5 stars review

Verified Purchase

Great product with big wires....

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.

Review from defender-usa.com
Helpful?326IA7VZEYHS16767357368
Aug 26, 2023
BigD
5 out of 5 stars review

Verified Purchase

Happy with product

System was pretty easy to install and works well. Like having a powered system. Package was complete which was nice. Wish you had better quality screws or perhaps change to hex screws for camera angle setting. Found that the current phillips screws are soft and strip pretty easily.

Review from defender-usa.com
Helpful?326IA7VZEYHS16767357368
Mar 24, 2023
Penticton Customer
5 out of 5 stars review

Verified Purchase

Exactly What I Wanted From A Video Security System

The Sentinel 4K Bundle has all the features that I wanted in a video security system. No ongoing fees, no batteries to ever change, 4K video resolution, and simple to set up and operate. My total installed cost was about 20% of the cost of a similar "professionally" provided and installed system. I have already recommended it to a neighbour, who proceeded with his own purchase of a system.

Review from defender-usa.com
Helpful?326IA7VZEYHS16767357368
reply from Defender

Hello Anonymous! Thank you for taking the time to review the 4K Sentinel security system. We are so glad to hear you are happy with the system. Our customer feedback is what matters most to us here at Defender! We would greatly appreciate you speaking with your friends and family about your experience with Defender and your 4K Sentinel. Thank you for choosing Defender to protect what matters most. Amanda M. | Defender Customer Experience Supervisor

Aug 19, 2023
Hank Fish4Life
5 out of 5 stars review

Verified Purchase

Cameras are easy to set up and great features.

Love the features and the ease of the cameras and setup. I do wish the video was a little clearer at 30 feet off the road and was hoping I would be able to catch a license plate number. I do like the fact that the cameras work just on a twisted pair of cat5 cable.

Review from defender-usa.com
Helpful?326IA7VZEYHS16767357368
reply from Defender

Hello Hank, Thank you for your wonderful review. Proud to hear that you love how easy the cameras are to set up. License plates can be more challenging to capture on video depending on the speed of the vehicle and the angle of the cameras, as well as the distance from the camera. Thank you for choosing Defender to protect what matters most. Best Regards, Amanda M | Defender Customer Experience Supervisor

Oct 8, 2022
Annie C
4 out of 5 stars review

Verified Purchase

Mostly good system. Pretty happy.

Good system. Easy to install. We enjoy the wide view. Can see a lot more than expected. Only issue is that we get alerts that they are picking up human body but when you look, it's nothing. We tried turning sensitivity down but it didn't help. So we get a lot of notifications for nothing. And it's the same spot over and over. Maybe it's a ghost? Lol otherwise we are happy with it all.

Review from defender-usa.com
Helpful?326IA7VZEYHS16767357368
reply from Defender

Hello Annie, Thank you for your review. Please note that human detection significantly reduces false alarms that can be triggered by insects, rain, swaying trees, passing vehicles, or animals.  Please note some false alerts may occur as the algorithm is designed to reduce these but will not eliminate them completely. Thank you for choosing Defender to protect what matters most. Best Regards, Amanda M | Defender Customer Experience Expert

Sep 1, 2022
Public Name
4 out of 5 stars review

Verified Purchase

Quality Cameras, Quality Support, Questionable DVR

This is actually an upgrade for me so I think I would appreciate this more, but I definitely love the wired cameras better. The quality in video is also a noticeable improvement and now that I can monitor from the DVR and not from the app, it’s more streamlined and not put together clunky to get the outcome I wanted which I now have. The quality of the cameras is also an improvement. You can feel how robust these cameras are compared to the previous wife ones I had. I did have one that had an issue with water intrusion which distorted the image, BUT I can tell this was a one off situation because these really are better in quality. So much that even with water inside the camera, distorting the image, it never shorted out and it still ran, so that also makes me think this is a one off situation. Also, Defender was quick and professional about making sure I got a replacement camera with ZERO headache. Lastly, the DVR seems a little flimsy and the software running on it is also very rough, but it’s in perfect working order. My only concern is “Time”. How will this DVR hold up by this time two years from now? Overall though, I think this is a great deal for the price point and would certainly recommend as a legacy customer.

Review from defender-usa.com
Helpful?326IA7VZEYHS16767357368
reply from Defender

Hello, Thank you for your review. We are happy to hear that you love the cameras construction and picture quality. I am sorry to hear that there was an issue with one of your cameras, I am glad our team was able to quickly resolve the issue. We are confident that the DVR will hold up for you and look forward to your feedback. Thank you for being a long-term customer. Thank you for choosing Defender to protect what matters most. Best Regards, Amanda M | Defender Customer Experience Expert

Nov 3, 2022
Aaron
4 out of 5 stars review

Verified Purchase

Defender Sentinal 4ch POE

After a lot of research I chose to install the Defender Sentinal system. I was excited to buy from a Canadian company. This system checked all my boxes including non of the gimmicky features like flashing lights and sirens. Overall quality seems to be what it should be for the price. Installation is only as difficult if you want it. Set up was relatively simple. Picture quality is great in daytime and acceptable at night using the IR feature. The layout of the NVR systems OS could be refined but overall it works. Improvments in the app would be beneficial but again it does its job. I installed this system about a month ago and would definitely buy again.

Review from defender-usa.com
Helpful?326IA7VZEYHS16767357368
reply from Defender

Hello Aaron, Thank you for your view. We are happy to hear that the system meets your need and you are pleased with your purchase. Thank you for your feedback. Thank you for choosing Defender to protect what matters most. Best Regards, Amanda M | Defender Customer Experience Expert

Dec 14, 2023
Aunt B
4 out of 5 stars review

Verified Purchase

Discovering small details..

The system could have came with better quality Ethernet cables like cat 6. Also I would have loved to known that the nvr needs to be within 30ft from internet modem before I set all the cameras and wires up 95ft away from my internet modem. The last thing i don't care for is video playback is rather complicated. There is only pause and fast forward, no rewind to go back in case you want to watch something over again and you cannot zoom in on playback footage. The instruction manual is rather lacking in a lot of details. Very informative on setting it up with you phone, everything else isn't. However, the picture quality is absolutely amazing

Review from defender-usa.com
Helpful?326IA7VZEYHS16767357368
May 29, 2024
PKUD
4 out of 5 stars review

Verified Purchase

Good but....

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.

Review from defender-usa.com
Helpful?326IA7VZEYHS16767357368