---
product_id: 1150774
title: "Defender Sentinel 16CH H.264 500GB Smart Security DVR Including 8 Ultra Hi-Res Outdoor Cameras with 100ft Night Vision,21050"
brand: "defender"
price: "R1834"
currency: ZAR
in_stock: false
reviews_count: 4
url: https://www.desertcart.co.za/products/1150774-defender-sentinel-16ch-h-264-500gb-smart-security-dvr-including
store_origin: ZA
region: South Africa
---

# 100ft automatic night vision 500GB storage for 2+ years 600TVL ultra hi-res clarity Defender Sentinel 16CH H.264 500GB Smart Security DVR Including 8 Ultra Hi-Res Outdoor Cameras with 100ft Night Vision,21050

**Brand:** defender
**Price:** R1834
**Availability:** ❌ Out of Stock

## Summary

> 🔒 Stay vigilant 24/7 with Defender Sentinel — because peace of mind is priceless!

## Quick Answers

- **What is this?** Defender Sentinel 16CH H.264 500GB Smart Security DVR Including 8 Ultra Hi-Res Outdoor Cameras with 100ft Night Vision,21050 by defender
- **How much does it cost?** R1834 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/1150774-defender-sentinel-16ch-h-264-500gb-smart-security-dvr-including)

## Best For

- defender enthusiasts

## Why This Product

- Trusted defender brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Massive 500GB Storage:** Record over two years of continuous footage with efficient H.264 compression technology.
- • **Night Owl’s Best Friend:** 36 IR LEDs provide up to 100ft of automatic night vision—never miss a thing after dark.
- • **Expandable 16-Channel System:** Monitor every corner of your property by connecting up to 16 cameras for comprehensive coverage.
- • **Crystal-Clear 600TVL Resolution:** Ultra hi-res cameras deliver sharp, detailed video to catch every detail.
- • **Remote Access Anytime, Anywhere:** Stream live footage on your smartphone, tablet, or PC for total control on the go.

## Overview

The Defender Sentinel 16CH H.264 DVR system includes 8 ultra hi-res 600TVL outdoor cameras with 100ft night vision, a 500GB hard drive capable of storing over two years of footage, and remote viewing via internet-enabled devices. Designed for easy setup and flexible monitoring, it supports up to 16 cameras and features anti-vandal mounts and automatic motion alerts. Ideal for professionals seeking reliable, round-the-clock security coverage.

## Description

Product Description Trust DEFENDER to make thieves and vandals think twice about approaching your property. DEFENDER systems function just like a computer, with a mouse for pointing and clicking and an intuitive icon-based menu for easy set up and use. View anytime, anywhere with remote viewing via internet, smartphone, and tablet and receive email alerts, with photo, when motion is detected on your property. Record over 2 years worth of footage on the included 500 GB hard drive. All-weather cameras deliver clear, ultra hi-res video with 600TVL and IR cut filter. 36IR LEDs allow for 100ft of automatic night vision. Anti-vandal mount ensures cameras cannot be tampered with and 65ft of cable allows for greater flexibility in mounting. Connect up to sixteen cameras to this 16CH system and monitor your business or home inside and out. Don't give thieves a chance. Stop them with DEFENDER! From the Manufacturer Trust DEFENDER® to make thieves and vandals think twice about approaching your property. DEFENDER® systems function just like a computer, with a mouse for pointing and clicking and an intuitive icon-based menu for easy set up and use. View anytime, anywhere with remote viewing via internet, smartphone, and tablet and receive email alerts, with photo, when motion is detected on your property. Record over 2 years’ worth of footage on the included 500 GB hard drive. All-weather cameras deliver clear, ultra hi-res video with 600TVL and IR cut filter. 36IR LEDs allow for 100ft of automatic night vision. Anti-vandal mount ensures cameras cannot be tampered with and 65ft of cable allows for greater flexibility in mounting. Connect up to sixteen cameras to this 16CH system and monitor your business or home inside and out. Don’t give thieves a chance. Stop them with DEFENDER®! View online | View LargerExtremely easy to set up and useYou’ll be surprised by how easily a DEFENDER® DVR Security System operates. The menu provides prompts and coaching to assist you in customizing the settings for your recording needs. Use your choice of mouse or remote for navigation of the easy-to-read icon-based menu. It’s so simple to use it will even begin recording as soon as it’s plugged in. View your property from anywhere in the worldAccess live footage of your home or business online, anytime and anywhere. Using a smartphone, tablet or computer you will always be able to see what you otherwise may have missed without your Defender Smart Security System. Whether you are around the block or around the world, you will always feel in control. Instant email alerts if activity detectedInstantly know if any suspicious activity is happening on your property. This system will send you an email alert, complete with a photo of the activity, if any motion is detected or if cameras experience video loss. Even if you aren’t watching when something happens, you’ll know immediately if something is wrong. Crisp and detailed video | View Larger Two years' worth of footage storage – and more if you need itThe included 500GB hard drive allows for continuous monitoring and can store over two years’ worth of recorded footage! Your DVR will send an alert when your memory space is full so you can choose to overwrite old video or stop recording. Back up and transfer your video footage with a USB flash drive or external USB hard drive with the built-in USB port. And if you need to expand your storage even further, you can choose to record only when motion is detected. This DVR uses H.264 compressionwhichmaximizes recording time, transfers data more efficiently over the internet and you’ll use 50% less storage space than traditional compressions - MPEG4, MJPEG - while still benefitting from high-quality imagery.Crisp and detailed video you can rely onYour surveillance system is only worthwhile if you can actually see the person stealing from you. DEFENDER® cameras are equipped with 600 TV lines of resolution. The result is clear, crisp and accurate video. 100ft night vision | View Larger When everyone else is asleep, your cameras are watching closelyThe things that go bump in the night are sometimes a thief making off with your big-screen TV. DEFENDER® cameras are equipped with automatic night vision. Thirty-six infrared LEDs provide clear night vision footage from up to 100ft away in complete darkness. Thieves may think they’re lurking around undetected but you can rest assured you will see them with DEFENDER®. Add up to 16 Cameras |View Larger Monitor up to 16 areas of your propertyThis system is ready for you to add up to 16 surveillance cameras allowing you to monitor every corner and doorway of your property. Ideal for businesses with a large staff and multiple storage areas or large residential and rural properties, a 16CH system allows you to have maximum monitoring locations both indoor and out.Lifetime Live Customer Support Our customer support team can be reached by phone, by email and live web chat. You’ll always have access to an expert. Support is available in English, Spanish and French.

Review: A good basic system for the money - I ordered this system not expecting the latest greatest technology. It serves its purpose, mostly as a deterrent and a way to record what goes on around the house. Installation takes time, you have to figure where to mount cameras, drill holes, fish wires, etc., all part of the normal process. Setup of the DVR was relatively easy, plugged it in, turned it on and use the mouse to configure. The camera's work well for daylight, but only so so for night vision, but this is pretty common. The video and pictures are relatively clear within the first 10 to 15 feet. Beyond that however, you're going to have a hard time clearly identifying someone. I don't see a benefit to "Ultra Resolution" cameras as advertised over the others I have and use. Again, I wasn't expecting them to be the same as a high dollar true hi-rez camera but I was expecting a tad bit better picture/video. The installation instructions (on the DVD) were average. They could provided a better and clearer understanding of recommended hole size to drill in order to fish the wires, but I figured it out on my own quickly enough. In one case fishing the wires, they separated from the camera completely rendering the camera completely inoperable. I will chalk that up to my own installation error, but since it didn't happen to the other 3 camera's, it's more likely the splice at the camera wasn't done properly at the factory. The software on the DVR is very plain, nothing fancy here, but some of the icons are a bit cryptic to figure out. You'll need to take a few minutes to get used to the graphical user interface and some of the configuration settings. The documentation is included on the enclosed mini-DVD, also available via their website. I found it easier to use a browser to view and configure the cameras by hitting the Static IP I setup and connecting to my home network. I'm also using the IP Forwarding to view the cameras from offsite, using Android devices (a tablet, and a Samsung SG3) to view them from anywhere around the house, or when I'm on the road. I installed the free version of IP Cam Viewer, setup the app to find the DVR on a Static IP I was forwarding through the firewall, then had to select Lorex ECR System with Client Port and turned off "Use Experimental h.264 dvr code" in the IP Cam Viewer app. These are settings in the app, not the DVR. So now when I hear a noise or someone rings the doorbell, I reach for my Android Phone to check the camera feeds. Very nice to have. I had 2 support related issues, and sent 2 emails to their support department (Defender-USA). One of my issues received a partial reply 36 hours later, the other I was able to resolve on my own. Customer Service was provided by "Ian", who continually followed up with me over the last few weeks via phone, and via email. While it took some time to get the info I needed to resolve the issue, Ian and Customer Service made things right so I'm happy they kept following up. I'm updating my review and rating as a result of his work, and I would buy from them again without question as a result of the continual support. UPDATE: Now that I've had the system for quite a while now, I'm still very happy with my purchase and the performance of the system. Using my Android devices with IP Cam Viewer (see notes above to configure it)along with the IP port forwarding features, I can check the camera's anytime, from anywhere.
Review: Very INSECURE! Great product, but ANYONE can log into your DVR and watch you... - The system and cameras work very well (except the screws for the camera mounts rust almost instantly upon contact with water, as noted in other reviews.) I'm an I.T. professional, and I'd like to expose a HUGE security flaw with this system. This defender system (along with other models this company makes: Q-See, NightOwl, SVAT, etc.) has two major problems: 1) It has an open telnet port with a root username. For my own security, I'm not going to list the password here, but it took me less than 4 days to crack it brute force. This is inexcusable. I even wrote the company asking them to close this port for me, and they refused, and treated me with disrespect. (Read the response I received below.) 2) Anyone can login to the web portal using ANY username you choose with the pwd 519070. Isn't scary to know that you could essentially find the login page for anyone's DVR, enter foobar for the username, and 519070 as the password and, viola! You're in! Be forewarned, I had to write software to restrict access to this DVR login page (rerouting DNS entry lookups, a custom ACL list, and restricted MAC address access on my router.) I was also interested in writing a custom piece of software to use on my android phone (just like the software aSee), so I wrote the company the following letter requesting information - their response not only didn't help, it pissed me off. Here's the complete email trail. **MY EMAIL TO SVAT/DEFENDER** ============================= Good afternoon, I'm hoping to be able to get some information from you about the Defender DVR system Model 21031 I purchased. I noticed that aSee is a supported application that allows streaming from this DVR on port 18004. But how does this work? I am currently trying to develop software to stream but don't know how to go about doing so. I can't find any information for developers anywhere. Does this DVR support rtsp? Is there a URL query to access live streaming per channel? Also, I noticed that my DVR system comes with an open telnet port. I'd like to close this for security reasons. Can I do this? (Can you provide telnet username/password?) ...or could I have you log in and close it for me? Thanks in advance for your help! ============================== **THEIR RESPONSE TO ME** ============================= Hello, Thank you for your inquiry, I am sorry for the delay in response but here are the answers i received from R & D. I hope this helps. If you require any further assistance please do not hesitate to contact us. Best Regards CWD Customer Support How does a mobile app work? The DVR acts as a server streaming data over the port to the network and then to the app, IE or PC client. We would be unable to help explain the complexities of creating an app such as this. Does the DVR support RTSP? No, the DVRs do not support RTSP. Is there a URL query to access live streaming per channel? No, there is no URL to access individual channels. This has been tested and does not support this functionality. Noticed DVR system comes with an open telnet port, He would like to close for security reasons, can this be done? At this time we cannot comment on how to close the telnet port. Can you provide telnet username/password? Or could I have you log in and close it for me? Unfortunately we are unable to do so due to security concerns. ============================== **MY REPLY TO THEIR UNHELPFUL EMAIL** ============================= Please relay this to your R&D department, specifically: the person responsible for the answers to my questions. What a waste of an email, my time and your time. I have been a software engineer for 15+ years, and if a helpful explanation is "too complex" for you to explain to me, then you're obviously not cut out for your position. Additionally, it looks like most of the code for the Defender GUI and console was written by a team in China in Chinese, then translated to English - so perhaps that's why you have no idea how to give a helpful, detailed reply. Concerning the open telnet port: It took me 6 hours to find the root user password using a quad-core i7 intel processor and extra help from my graphics card processor. I've since closed the telnet port for security, and you and your team are lucky that I'm not the kind of person to post this online. Furthermore, I'm half way done reverse engineering (decompiling) your clunky activeX controller and will be writing my own. Don't be surprised in the next 3 months to find a paid application for iPhone, Android that works much better and is much cheaper than aSee. (You must not have helped the developer for aSee software develop their mobile application because, after all, the explanation is just far too complex to explain.) I am deeply disappointed in your response, lack of help, and quite honestly, I'm offended by your laziness/willingness to help a loyal customer. Please know this: YOUR response alone has just lost you and your company some big money. My business will no longer be looking to DEFENDER/SVAT (and all associated products) for our large business operations. So: Learn from this experience and know that you have a gaping security flaw with the open telnet port on your linux box (DVR). Isn't it sad that I've provided you with more useful, thoughtful advice than you were willing to provide me? So - BEWARE! This company will not help you, but will insult you if you ask for any help beyond turning the system on. I have since uninstalled this terrible product and bought a much more secure system. I hope this helps someone else truly worried about the security of their system.

## Features

- 600TVL with IR cut filter ultra hi-res cameras provide crisp and detailed video
- 36IR LEDs for 100ft Automatic night vision
- View anytime, anywhere with remote viewing via internet, smartphone, and tablet
- Record over 2 years worth of footage on the included 500 GB hard drive

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B009LIPKS4 |
| Customer Reviews | 3.5 3.5 out of 5 stars (222) |
| Date First Available | October 2, 2012 |
| Item Weight | 10.95 pounds |
| Item model number | 21050 |
| Manufacturer | Defender |
| Product Dimensions | 21 x 11.6 x 14.1 inches |

## Images

![Defender Sentinel 16CH H.264 500GB Smart Security DVR Including 8 Ultra Hi-Res Outdoor Cameras with 100ft Night Vision,21050 - Image 1](https://m.media-amazon.com/images/I/71uvuEB8WGL.jpg)
![Defender Sentinel 16CH H.264 500GB Smart Security DVR Including 8 Ultra Hi-Res Outdoor Cameras with 100ft Night Vision,21050 - Image 2](https://m.media-amazon.com/images/I/71nw2+NLEeL.jpg)
![Defender Sentinel 16CH H.264 500GB Smart Security DVR Including 8 Ultra Hi-Res Outdoor Cameras with 100ft Night Vision,21050 - Image 3](https://m.media-amazon.com/images/I/71kB7Q2tFAL.jpg)
![Defender Sentinel 16CH H.264 500GB Smart Security DVR Including 8 Ultra Hi-Res Outdoor Cameras with 100ft Night Vision,21050 - Image 4](https://m.media-amazon.com/images/I/71DtzLwMsoL.jpg)
![Defender Sentinel 16CH H.264 500GB Smart Security DVR Including 8 Ultra Hi-Res Outdoor Cameras with 100ft Night Vision,21050 - Image 5](https://m.media-amazon.com/images/I/812L7XacYxL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A good basic system for the money
*by K***K on August 20, 2012*

I ordered this system not expecting the latest greatest technology. It serves its purpose, mostly as a deterrent and a way to record what goes on around the house. Installation takes time, you have to figure where to mount cameras, drill holes, fish wires, etc., all part of the normal process. Setup of the DVR was relatively easy, plugged it in, turned it on and use the mouse to configure. The camera's work well for daylight, but only so so for night vision, but this is pretty common. The video and pictures are relatively clear within the first 10 to 15 feet. Beyond that however, you're going to have a hard time clearly identifying someone. I don't see a benefit to "Ultra Resolution" cameras as advertised over the others I have and use. Again, I wasn't expecting them to be the same as a high dollar true hi-rez camera but I was expecting a tad bit better picture/video. The installation instructions (on the DVD) were average. They could provided a better and clearer understanding of recommended hole size to drill in order to fish the wires, but I figured it out on my own quickly enough. In one case fishing the wires, they separated from the camera completely rendering the camera completely inoperable. I will chalk that up to my own installation error, but since it didn't happen to the other 3 camera's, it's more likely the splice at the camera wasn't done properly at the factory. The software on the DVR is very plain, nothing fancy here, but some of the icons are a bit cryptic to figure out. You'll need to take a few minutes to get used to the graphical user interface and some of the configuration settings. The documentation is included on the enclosed mini-DVD, also available via their website. I found it easier to use a browser to view and configure the cameras by hitting the Static IP I setup and connecting to my home network. I'm also using the IP Forwarding to view the cameras from offsite, using Android devices (a tablet, and a Samsung SG3) to view them from anywhere around the house, or when I'm on the road. I installed the free version of IP Cam Viewer, setup the app to find the DVR on a Static IP I was forwarding through the firewall, then had to select Lorex ECR System with Client Port and turned off "Use Experimental h.264 dvr code" in the IP Cam Viewer app. These are settings in the app, not the DVR. So now when I hear a noise or someone rings the doorbell, I reach for my Android Phone to check the camera feeds. Very nice to have. I had 2 support related issues, and sent 2 emails to their support department (Defender-USA). One of my issues received a partial reply 36 hours later, the other I was able to resolve on my own. Customer Service was provided by "Ian", who continually followed up with me over the last few weeks via phone, and via email. While it took some time to get the info I needed to resolve the issue, Ian and Customer Service made things right so I'm happy they kept following up. I'm updating my review and rating as a result of his work, and I would buy from them again without question as a result of the continual support. UPDATE: Now that I've had the system for quite a while now, I'm still very happy with my purchase and the performance of the system. Using my Android devices with IP Cam Viewer (see notes above to configure it)along with the IP port forwarding features, I can check the camera's anytime, from anywhere.

### ⭐ Very INSECURE! Great product, but ANYONE can log into your DVR and watch you...
*by J***O on January 6, 2013*

The system and cameras work very well (except the screws for the camera mounts rust almost instantly upon contact with water, as noted in other reviews.) I'm an I.T. professional, and I'd like to expose a HUGE security flaw with this system. This defender system (along with other models this company makes: Q-See, NightOwl, SVAT, etc.) has two major problems: 1) It has an open telnet port with a root username. For my own security, I'm not going to list the password here, but it took me less than 4 days to crack it brute force. This is inexcusable. I even wrote the company asking them to close this port for me, and they refused, and treated me with disrespect. (Read the response I received below.) 2) Anyone can login to the web portal using ANY username you choose with the pwd 519070. Isn't scary to know that you could essentially find the login page for anyone's DVR, enter foobar for the username, and 519070 as the password and, viola! You're in! Be forewarned, I had to write software to restrict access to this DVR login page (rerouting DNS entry lookups, a custom ACL list, and restricted MAC address access on my router.) I was also interested in writing a custom piece of software to use on my android phone (just like the software aSee), so I wrote the company the following letter requesting information - their response not only didn't help, it pissed me off. Here's the complete email trail. **MY EMAIL TO SVAT/DEFENDER** ============================= Good afternoon, I'm hoping to be able to get some information from you about the Defender DVR system Model 21031 I purchased. I noticed that aSee is a supported application that allows streaming from this DVR on port 18004. But how does this work? I am currently trying to develop software to stream but don't know how to go about doing so. I can't find any information for developers anywhere. Does this DVR support rtsp? Is there a URL query to access live streaming per channel? Also, I noticed that my DVR system comes with an open telnet port. I'd like to close this for security reasons. Can I do this? (Can you provide telnet username/password?) ...or could I have you log in and close it for me? Thanks in advance for your help! ============================== **THEIR RESPONSE TO ME** ============================= Hello, Thank you for your inquiry, I am sorry for the delay in response but here are the answers i received from R & D. I hope this helps. If you require any further assistance please do not hesitate to contact us. Best Regards CWD Customer Support How does a mobile app work? The DVR acts as a server streaming data over the port to the network and then to the app, IE or PC client. We would be unable to help explain the complexities of creating an app such as this. Does the DVR support RTSP? No, the DVRs do not support RTSP. Is there a URL query to access live streaming per channel? No, there is no URL to access individual channels. This has been tested and does not support this functionality. Noticed DVR system comes with an open telnet port, He would like to close for security reasons, can this be done? At this time we cannot comment on how to close the telnet port. Can you provide telnet username/password? Or could I have you log in and close it for me? Unfortunately we are unable to do so due to security concerns. ============================== **MY REPLY TO THEIR UNHELPFUL EMAIL** ============================= Please relay this to your R&D department, specifically: the person responsible for the answers to my questions. What a waste of an email, my time and your time. I have been a software engineer for 15+ years, and if a helpful explanation is "too complex" for you to explain to me, then you're obviously not cut out for your position. Additionally, it looks like most of the code for the Defender GUI and console was written by a team in China in Chinese, then translated to English - so perhaps that's why you have no idea how to give a helpful, detailed reply. Concerning the open telnet port: It took me 6 hours to find the root user password using a quad-core i7 intel processor and extra help from my graphics card processor. I've since closed the telnet port for security, and you and your team are lucky that I'm not the kind of person to post this online. Furthermore, I'm half way done reverse engineering (decompiling) your clunky activeX controller and will be writing my own. Don't be surprised in the next 3 months to find a paid application for iPhone, Android that works much better and is much cheaper than aSee. (You must not have helped the developer for aSee software develop their mobile application because, after all, the explanation is just far too complex to explain.) I am deeply disappointed in your response, lack of help, and quite honestly, I'm offended by your laziness/willingness to help a loyal customer. Please know this: YOUR response alone has just lost you and your company some big money. My business will no longer be looking to DEFENDER/SVAT (and all associated products) for our large business operations. So: Learn from this experience and know that you have a gaping security flaw with the open telnet port on your linux box (DVR). Isn't it sad that I've provided you with more useful, thoughtful advice than you were willing to provide me? So - BEWARE! This company will not help you, but will insult you if you ask for any help beyond turning the system on. I have since uninstalled this terrible product and bought a much more secure system. I hope this helps someone else truly worried about the security of their system.

### ⭐⭐⭐⭐⭐ Excellent product!
*by M***. on July 30, 2012*

How can I start with this review..... I was a little scared compare to other cameras and the prices because this one look a lot cheaper with a lot more extra features. Ok, I install it without a problem instructions are extremely clear to follow. I even set up with my internet and I'm able to see my camera from anywhere in the world that I get internet. It is pretty sick to see that, I travel a lot and any time I want I just can watch my house. You can also set alarms to of motion detector, that I disable it because it is too sensitive and it triggers the alarm every 5 mins. I put it to email me when something is detected and actually works you get an email with a picture. I guess this would be good if was use inside as I have it outside there is wind and leaves and spiders around the camera. The main reason I got this was because suppose at night has a big range of night vision, and it does!! at night is super clear and you are able to see every in complete darkness!!! Is it weather proof, ummm I had a huge thunderstorm the other day and it didn't get affected, now just waiting for the winter to see how it handles snow..... over all, I will buy the same brand but now with MORE cameras.

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-17*