From the Manufacturer
SENTINEL9 Key Features
- View video online with no service fees from any computer in the world
- Record up to 240 days of video footage on the Seagate SV35 series 160GB hard drive
- Set the DVR to send you email alerts when motion is detected or a power loss occurs
- This space saving all-in-one system has the DVR built right into the 17″ monitor
- 24/7 lifetime live customer support is available through phone, email, and live web chat both before and after you buy
Introducing SENTINEL9: Ultra Slim Web Ready 4 Channel DVR Security System with Built-in 17″ LCD Screen and 4 Indoor/Outdoor Hi-Res Night Vision Surveillance Cameras
Protect your hard-earned possessions, assets, and family; know who has been on your property; rid yourself of uneasiness when you travel on vacation or business. The SENTINEL9 offers some of the most advanced surveillance options available but in a hassle-free, do-it-yourself approach so you can have a fully functioning security system for your home or business in less time and for less money. This DVR is loaded with features that will help keep your property safe and secure. The SENTINEL9′s online viewing feature allows you to conveniently access your DVR’s live or recorded video footage on any computer in the world with Internet Explorer. You can even set up email alerts so that you will know when something suspicious happens. Record up to 240 days of continuous video on the built-in 160GB Seagate® SV35 series hard drive. The SENTINEL9 is a clutter-free complete video security station with an amazingly slim 17″ LCD monitor and feature loaded DVR.
Fast & Hassle-Free Setup
The SENTINEL9 is one of Defender’s complete do-it-yourself systems that are incredibly easy to set up and use with no need to hire a professional installer. Auto-start recording ensures that your system will automatically begin recording as soon as you plug it in to a power outlet. You can easily monitor entryways, offices, shops, warehouses, children’s rooms, garages, or any other area in your business or home.
View Video Online with No Service Fees
Regardless of where you are in the world, you can view your DVR’s live or recorded video footage on any internet accessible computer with Internet Explorer. See what is happening on your property and check in on your employees or family members. (Requires a router, Windows operating system, Internet Explorer browser, and broadband Internet connection for online viewing).
Record up to 240 Days of Continuous Video Footage
We use the only hard drive ever designed specifically for DVR security systems. The SENTINEL9′s 160GB Seagate SV35 series hard drive can hold up to 240 days of continuous video. Optimized for 24/7 surveillance, the hard drive provides reliability and quality. Your DVR will alert you when your memory space is full so that you can overwrite your old video, stop the unit from recording, or use the built-in USB port to back up and transfer your video footage. In order to achieve the “Storage by Seagate” mark, our DVRs are subject to rigorous testing at Seagate’s testing facilities in Longmont, Colorado.
Stay Notified with Email Alerts
Get notifications of events happening in your monitoring location(s). You can set the unit to automatically send alerts to your email inbox whenever motion is detected or when cameras lose power. Up to 7 different email addresses can receive these alerts.
Stylishly Integrated 17″ LCD for All-In-One Surveillance
The SENTINEL9′s DVR is built into the 17″ LCD screen for an amazingly slim, all-in-one security system. Because of the compact design, the SENTINEL9 instantly transforms your viewing space into a vibrant, clutter-free security base station. Customizable viewing options allow you to decide which area of your property you want to see and when you want to see it.
USB/DVD/CD Backup
A built-in USB port gives you the option of backing up and transferring your video footage with a USB flash drive, external USB hard drive, or an external DVD/CD writer (peripherals not included). Your video footage then becomes portable for easy viewing and archiving on any PC.
4 Professional Grade Hi-Res Night Vision Cameras
Four high quality color cameras provide you with a clear and consistent picture at 420 TV lines of resolution. They allow you to better distinguish facial features, which can help in the positive identification of individuals. The cameras can be used indoor and outdoor. Each one is built with professional grade aluminum housing and a sunshade to help prevent glare, deterioration and rusting.
View in the Dark with Automatic Night Vision
The cameras come equipped with night vision, allowing you to see any monitored area (up to 15ft away) in total darkness. Each camera has 12 infrared LEDs that activate automatically when it becomes dark and deactivate during the day to save energy. You will always be able to see what is happening in your yard or at your business after-hours (images enhanced).
Advanced Motion Activated Recording
You have the option to record video only when motion is detected. Finding important video footage using the playback feature is easy, and will also save you time and conserve hard drive space. You can even set individual cameras to detect motion while the others continuously record. Advanced motion detection settings ensure that false alarms are not triggered—the easy motion detection “mask” allows you to block out areas with constant movement, such as roads or blowing trees so that only suspicious activity is recorded.
Adjustable Pre-Event Recording Time
Never miss the events leading up to an incident. When the system is in Motion Activated Recording mode, you can set the DVR to store a small amount of video footage before movement ever actually happens.
Covert Monitoring Keeps Camera Locations Discreet
Covert mode hides your field so that you have the option of keeping your camera locations a secret. The DVR will record video footage from the camera, but the monitor will display a blue screen, giving others the impression that no cameras are connected.
24/7 Scheduled Recording to Meet Your Needs
You can fully customize a weekly recording schedule. You can choose which days of the week and hours of the day you want to continuously record, motion record, or not record at all. Each camera can be scheduled with different settings (up to 30 frames per second per camera).
Customize Your Camera Display
You have many options when viewing your cameras on-screen. Display all four cameras in Quad Screen mode (four camera split screen), show just an individual camera in Full Screen, and more. Zoom Mode allows you to enlarge a portion of the camera’s view to get a closer look, and Sequence Mode cycles through all camera views at preset interval times.
Two Way Internet Communication
This system comes equipped with audio support and allows two way audio communication between the DVR and a remote PC when connected via the Internet (microphones for the DVR and remote PC are required).
Find Your Video Footage Easily with Time, Date, and Event Search
Simply choose the desired date and time range, and the requested video clips will appear. Clips are also labeled by event, which makes it easy to find footage that was captured by motion detection.
Hear What Your Cameras Hear with Audio Support
This system includes 1-channel audio support to help you effectively watch over your belongings or family with more than just video. Connect a microphone to this DVR to record and play back audio (microphone not included. Included cameras do not support audio).
Endless Location Options with 60ft of Wiring per Camera
The included 60ft camera wiring gives you flexibility in the installation of your cameras and allows you to increase each camera’s range. If you need additional 60ft cable lengths, you can purchase the DF10W. The single wire also conveniently carries both the power and video signals, so you are only running one wire per camera (maximum 180ft cable length per camera is recommended).
We’ll Get You Online with Our 24/7 Lifetime Live Customer Support
Assistance is available for you whenever you need it. Simply visit www.defender-usa.com for illustrated networking guides, simple tips on how to protect your property, and instructional videos on topics such as camera placement. Our customer support team can be reached by phone 24/7, or by e-mail and live web chat services so that you will always have access to an expert.
VESA Standard
The back panel of the DVR allows the unit to be safely wall mounted, and all cables meet VESA guidelines for organized cable management.
Nationwide Installation Service
Don’t have time to install your system? Defender can have your systems installed for you in any zip code across the continental United States, plus key population centers in Alaska, Hawaii and Puerto Rico. Our trusted network of security installers will not only install your system but also take the time to train you on its features and functions so you can get the most out of your Defender security system.
What’s in the Box
- 17″ 4CH LCD DVR with 160GB HDD
- 4 Outdoor Night Vision CCD Cameras
- 4 Camera Mounts
- 8.5 ft. DC12V Power Adapter for DVR
- 4 Power Adapters for Cameras
- Software CD
- 10ft RJ-45 Cable
- 4 x 60ft. 4 PIN DIN to RCA (male) Power Cables
- 5 RCA to BNC Connectors
- USB Mouse
- Remote Control for DVR
- Quick Start Guide
- 4 Window Warning Stickers
- Instruction Manual
- Mounting Hardware
- 1 Year Warranty
- 24/7 Lifetime Live Customer Support
Product Description
Buy Defender SENTINEL9 Ultra Slim Web Ready 4 Channel 17-Inch LCD DVR Security System with 4 Indoor/Outdoor Hi-Res Night Vision Surveillance Cameras at Amazon
Buy Defender SENTINEL9 Ultra Slim Web Ready 4 Channel 17-Inch LCD DVR Security System with 4 Indoor/Outdoor Hi-Res Night Vision Surveillance Cameras at Amazon










The title says it all! I just purchased this security system last month on Amazon. Shipping was super fast and the box arrived in perfect, excellent condition. Opening the box was exciting! The 19 inch monitor is very attractive and enormous! The 4 included cameras look very hi-tech and the recording hard drive is conveniently built into the monitor. Installing the entire system was also a breeze. The product came with everything you need (cables, cameras, monitor, instructions, software, etc.). The best part of the Sentinel9 is the internet capabilities. This is the main reason I bought this system, so I can watch over my small business anywhere, anytime. Customer service was great! They helped me connect the cameras to the internet through their customer service web live-chat located on their website. In conclusion, this is my third surveillance system and by far the best. The camera resolution is extremely high quality, watching my store over the internet gives me peace of mind, and customer service actually helps! Highly recommended!
I’m in the process of replacing my old security camera system. I ordered the 4 camera sentinal system to try it out on one location. The system is everything as advertised. I couldn’t be more pleased with this system.In addition, another plus in doing business with this company is the great support they provide. For free!!! I had a little trouble connecting to the DVR from a remote computer and called the support line. The young lady helping me actually took control of the system on line and in a few minutes it was up and running. I plan on buying at least 2 more of these system for other locations. You can’t go wrong here.
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