My overall impression of the 8 Channel 4K Sentinel NVR is very good. The system came well packaged with each camera packaged in it's own box. It was a breeze to setup with the cameras truly being plug and play. The NVR and accompanying app were configured within 10 minutes of unboxing. By far the most difficulty is running your cables to your camera locations. Take your time and plan where you'd like your cameras and the routes you have access to for the cable runs! The image quality of the cameras is fantastic and far surpasses the wireless cameras I used previously. The accompanying app is intuitive and easy to use. I was surprised at how little bandwidth this system uses. There are many options which can be configured around motion detection, notifications and schedules. Setting up and using this system has been a great experience and has provided a lot of value in a nice DIY package.

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.

Install and set up was easy. Running wires in the attic is a challenge but would be for any brand. Recommend that you test all equipment and then pull wires and mount cameras. Note for possible improvement would be to use a better quality adjustment screws. They strip out very easily. Suggest using a high quality torx head screw. Had a problem with a couple of the cameras going offline, not sure why. I rebooted the NVR and they all reconnected. I had Lorex cameras for many years and I believe these are better quality and set up was much easier.

I have been using this sentinel camera set up for about a month now. The installation of the cameras was easy to do. It did take some time to hide all the wires, which is to be expected. The NVR was very simple to set up and I did it without any problems. The picture quality is amazing on a 4K tv. I had no issues with setting the app up either. The steps are very well layed out. The quality of the picture during the day is absolutely beautiful. There is an option to record with black and white, or colour, or in smart mode. It’s crazy how in smart mode when motion is detected at night, the scene gets lit up in colour and it is just as good as in the daytime. This was a nice surprise. For most of the camers I kept the sensitivity level on low. When turned up it will pick up rain and you will get a lot of notifications. Turning down the sensitivity helped with this issue. The cameras that are semi protected under an eve also help reduce false alerts. Just something to think about when doing the camera placement. I really like the app. It’s easy to find and play your motion alerts. It has a playback feature that you can watch all your alerts for each camera. After playing the first video, it jumps to the next one automatically. We’ve had problems with bears in our neighborhood, so I use the playback feature to view captured motion alerts that happen at night. Overall I have had a good experience with the defender 4K Sentinel security system. I highly recommend this system if you want or need a good quality system with the best quality of picture. It’s nice that the price doesn’t break the bank too!

This is my second set of defender cameras. My first set I got over 10 years ago and I was really pleased with them so I decided to upgrade and get the newest version. This 4K system is absolutely amazing. The quality of the photos, the video, and my favorite part of it all is the motion sensors that I get alerts for directly to my phone. I strongly recommend anyone in the market for a great security camera system defender is the one.

We've had this system installed since the beginning of October and I could not be happier. Everything took about 8 hours to install properly and everything looks great. The quality of the video far exceeds my last system. The colors are sharp and the details are crisp and clear. I've got 6 of the camera's outside and they are able to cover everything that I need it two. The other two cameras I have inside pointing at my doors so that I can see who is coming and going. Being able to view the camera's in real time using the app has been extremely useful, especially while expecting deliveries or watching the driveway to see when my kids come home. Anything that you can do with the recording unit (NVR) you can do with the app, and I don't think I've had to plug the NVR into my TV for a while now after discovering how powerful the app is. Everything records in 4k and with audio so you can hear whats going on as well. I don't record 24/7, so I only have the motion and human detection turned on. Notifications are recorded in the app as well with a thumbnail, and when you click it you are taken right to that time so you can view the event on the player. If you need a system, you can't go wrong with this one.

Giving it 4 stars because it is a good system with nice quality cameras but: 1. It came with a faulty Cat5e cable, it has power but no connection is detected. 2. The human body alarm is faulty when camera is set on an angle, I have one installed at my porch area and it keeps thinking the tree or even my front door mat is a human body.. 3. The night vision light can be a bit annoying sometimes, I don't think I've found a promising solution to have it turned off completely or not that sensitive.

We had 2, 16 camera systems installed in our business. They replaced our older system. The installation of the cameras was quite simple and the set up took little time. From a security perspective, we are pleased with the high quality of the video/feed and in reviewing past recordings, we found it easy to go back and find specific dates for review. Over the years we have had three systems and following our research, we are certainly pleased with the Sentinel Defender camera systems.

The video quality on this system is great and setup is a breeze. Motion detection is somewhat hit-and-miss so as part of a security system you would still want more precise intrusion sensors, however, this works great to provide recordings of past/event activity for future reference.