We bought this system to replace an older wireless defender system. The cameras are great and so much clearer and the night vision is so easy to see everything. I also like that the color comes on when the lights are activated. Playback is very easy to use. Set up was very easy. I highly recommend this system.

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.

The Sentinel system is exactly what I have been looking for! We loved the easy set up with 1 cable for footage and power! We didn't have to worry about power adapters or power bars. The great 4k resolution with motion detection is awesome! I have 1 camera in the backyard to check what critters that may be running by after the winter thaw!

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.

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.

I purchased this system to upgrade my old camera system. The picture quality is top notch during day or night vision. The audio was also an upgrade as my old system did not have any audio capability. The app is also very powerful and quick. The ability to see, monitor and make changes from my phone is very convenient. I love this system and would recommend this and purchase this again.

My husband and I purchased the 16 POE camera set and have been enjoying the many options. The ease of installation was the first thing we noticed. I especially like the following: audio recording, footage in vivid color, white spot light, sharing the NVR, and the ability to view the detection page or my notifications prior to viewing playback. I am an old defender customer. When I listed my house to sell that was one of the features asked if it was staying. This is my second set since selling my previous house. The 4K color is great (clear and vivid). My preference is the wired set. I would definitely recommend this product to others.

Have been using this for 3 months in all weather condition (sunny, rain, hail, snow, sleet) and they have performed so well. Very happy with them. 8 cameras have allowed me a clear 24/7 view of my bungalow and property. The app is great. Get all the notifications I need. The added benefit of the lotion detection lights are another amazing feature I love.

The Defender Alarm System is AWESOME!!! The cameras now clearly monitor our hallways. We previously had major issues with students running up & down our hallways. The cameras recorded very clear & distinct photos that were given to the local high school. Problem solved!! The pictures on the monitor alert our staff when there is activity in the office. We love our system and Our staff are feeling very secure & safe. Patient & staff safety are Our #1 concern. ‘Wish We had installed The Defender System before. It’s very user friendly & We can observe any movement from across the room. Recently the hydro was out (4hrs) the emergency lighting allowed Our office to carry on as usual. Less stress, NO more worries! Thank YOU Defenders!

These are top notch quality camera's made out of metal. Purchased this 8 camera Sentinel Ultra HD series about 3 weeks ago and I am happy I upgraded. I had an older 8 camera 1080p setup from a different company and this one blows it away with the quality. People talking about quality issues have it setup wrong, or have other factors creating the issue. These camera's have infrared and led lights, which can be configured to be used or not. Coloured night vision is amazing and is best used with the led lights on the camera or other supplied light. You can configure it to be colour night vision with no infrared led or led lights turning on (daylight mode) but if you don't have enough light it will look dark and wont be able to see anything. People talking about false alerts are correct it will do that from time to time if not configured correctly. There are settings to configure the sensitivity of the dectection as well you are able to block certain area's suchs as tree's, bushes, or other things that move constantly with the wind blowing triggering the alerts. Once these area's are blocked they will not trigger the event and you will not get false alerts. No company has perfected this as you will see from many reviews of false alerts from any brand. However you can minimize it when its configured properly. I have mine set to record continously as well with motion this way you can get the full picture and also have a general idea when the event occured. The system is really easy to configure, but if you do have any problems contact support and they can guide you through to get it configured just how you like. If you are looking for a quality camera system, or even upgrading from an older system this is the one to get! One cord for each camera, easy setup plug and play, no extra power cords, no changing/charging batteries especially when its -30 lol