PRO Sentinel 16CH H.264 2TB Security DVR

Defender PRO Sentinel 16CH H.264 2TB Security DVR

with Widescreen Viewing and Smart Phone Compatibility (21152)

This Item has Been Discontinued


Get the professional-quality video security system you need to protect what you value most without having to pay for expensive installation. Defender PRO lets you monitor your property and customize your security system, your way. Perfect for any business or home application, you’ll experience peace of mind you never thought possible while knowing you did it all yourself with Defender PRO.

clearvu digital wireless technology

ClearVu™ Digital Wireless Technology

No more port-forwarding or waiting for software to network your system. Simply download the ClearVu® app, scan the QR code and begin monitoring remotely in seconds.

2TB hard drive stores months of storage

2TB Hard Drive Stores Months of Storage

Quickly and easily play back months of high quality video footage stored on the included 2TB hard drive that only you have direct access to. Whether you are using 2 or 16 cameras, rest easy knowing your footage is safe and secure on your Defender PRO DVR.

see more in widescreen with 960h technology

See More in Widescreen with 960H Technology

With 34% more surface visibility than standard security cameras, Defender PRO DVRs use 960H technology to let you see more. Whether you’re monitoring a darkened parking lot or well-lit backyard, your DVR allows you to watch and record video in resolutions as high as 960 x 480. And since you’re capturing video in real-time, you will always have access to a detailed record of all activity happening on your property.


Recording capacity may vary based on recording resolution and quality, lighting conditionsand movement in the scene. Based on a 2TB hard drive, using lowest quality settings.
Defender highly recommends the use of an Uninterruptible Power Supply (UPS) with surge protection for all products. Although the cameras are weather resistant, they are not weatherproof. Not for use in direct exposure to water, rain or snow.
DEFENDER® does not endorse any DEFENDER® products for illegal activities. DEFENDER® is not responsible or liable in any way for any damage, vandalism, theft or any other action that may occur while a DEFENDER® product is in use by the Purchaser. We reserve the right to change models, configuration, or specifications without notice or liability. Product may not be exactly as shown.

©2013 DEFENDER®. All rights reserved. DEFENDER®, the DEFENDER®, logo and other DEFENDER® marks may be registered. All other Trademarks are the property of their respective owners.

What's Included?

Instruction Manual CD (21112, 21103)

10ft RJ-45 Ethernet Cable

21000 series & Blueline USB Mouse for DVR

21000 series IR Remote Controller with Batteries


Functionality Pentaplex
Video Compression H.264
Audio Compression G.711
Video Input 16 x BNC
Video Output 1 x BNC, 1 x VGA
Audio Input 4 x RCA
Audio Output 1 x RCA
USB Port 2
Resolution 800x600, 1024x768, 1280x1024, 1440x900, 1920x1080
Recording Total Frame Rate NTSC:400 [email protected]/960H, 144 [email protected]/WD1, PAL:480 [email protected]/960H, 160 [email protected]/WD1
Recording Frame Rate Per Channel NTSC: 1fps~30fps adjustable, PAL: 1fps~25fps adjustable
Recording Resolution PAL :D1 mode 360×288(CIF),720x288(HD1),720x576(D1) 960H mode 480×288(WCIF),960×288(WHD1),960×576(WD1) NTSC:D1 mode 360×240(CIF),720x240(HD1),720x480(D1) 960H mode 480×240(WCIF),960×240(WHD1),960×480(WD1)
Recording Modes Motion Record, Schedule, Always
Pre Recording Max 10 seconds
Recording Media HDD (Backup via USB)
Storage Capacity Max 2TB, 1HDD
HDD Type Internal
HDD Size 2 TB
Video Format NTSC/PAL
Video Loss Alarm Auto Detect Alarm
Audio Bitrate 8 kbps
Live Frame Rate 30 FPS
Live Viewing Full, Quad, PIP, ZOOM, SEQ
Picture-in-Picture Yes
Network Protocol TCP/IP, DDNS, DHCP, PPPoE,UDP
Network LAN IP Static, Dynamic
Network Connection 10/100 BaseT Ethernet (RJ-45)
Supported Operating Systems Windows XP, Windows Vista, Windows 7, OSX 10.5 or above
Browsers Internet Explorer, Safari
Back-up USB Flash drive, USB disk & network
Play Search Mode Time/Date, Event list
Play Speed 2x, 4x, 8x, 16x
Pan/Tilt/Zoom S-485 Pelco D & P
OSD Language Display Multi-Language
Time and Date Stamp Display Yes
Password Protection Yes, Menu Password, Clear HDD Password
Operating System Linux
Processor ARM 9
Disk Full Warning Yes
Automatic Overwrite Option Yes
LED Indicators Power, HDD
Housing Aluminum
Housing Color Black
Power Input 12V DC 2A
Power Consumption 10W~15W
Power Adapter Input 100V 50/60HZ~240 50/60HZ
Operating Temperature 32°F~104°F
Operating Humidity 10%~90%
Dimensions 9.87x8.54x1.85"
Number of Channels 16
UPC 061783255117
What's Included
  • 16CH DVR with 2TB HDD
  • 1 Power Adapter
  • 2 BNC to RCA Connectors
  • RJ-45 Ethernet Cable
  • HDMI video cable
  • Instruction Manual & Software CD
  • USB Mouse
  • IR Remote Controller with batteries
  • Quick Start Guide
  • 1 Year Warranty
  • Lifetime Customer Support
  • Customer Reviews

    Overall Rating:

    Robert Brunet February 2, 2016

    My 5th system from Defender. This is the only once I've had to replace because the other one stopped working. My biggest issue is that I was given a "lifetime" discount code that the company would not honor. Not happy with the endless recording loop or the inability to actually talk to a support tech when you call.

    Kev January 30, 2016

    dvr only lasted two years but in retrospect I did not take an extended warranty, and received a discount for a new one

    Ginny January 28, 2016

    The added memory on this product has given us more confidence for the purposes for which we purchased the security system.

    Treehal1 November 30, 2015

    I have been using Defender products for years. Love the Easy setup and the simplicity to review videos.

    HCELLC November 30, 2015

    Purchased a system which included the 21150 (8) channel DVR, (4) 21146 cameras, cables remote and power supplies. All ports on the DVR and cables are clearly marked. I had the system up and functional in a single room in about 15-20 minutes after opening the box. Remote access with a laptop required the assistance of customer support and took about another ½ hour. Very pleased with all aspects of both the hardware and customer support. This system meets our needs for basic surveillance on a 5 unit rental property.

    Chuck L November 30, 2015

    The price was right for 8 cameras and a 2TB HDD. So glad I held off on buying one years ago. The widescreen cameras are crisp and bright. The cameras are also built like a tank. All metal top to bottom. I'm confident these cameras will last quite a long time.

    Nitro November 30, 2015

    Awesome, beautifully engineered, worked right out of the box.... but no paper-manual, and the instruction cd wouldn't play, either in my computer or on my blu-ray player. A quick chat on Defender's homepage fixed that, though.... a link to all downloads was provided, and they're sending me a paper-manual free! Only parts I added were stainless-steel screws with black-painted heads for mounting my cameras, and a 'borrowed' ;) VGA-cable to hook the DVR up to my TV. Plenty of cable provided; I hooked up all four cameras in my 1455sf ranch townhome, and had cable to spare even at the most remote location. Yay! I love the remote/mouse controls, and the IR image at night is superb! Consider this a four-and-a-half star review. Thanks again for a really nice product!

    Cowjohnny November 30, 2015

    I bought this DVR about 3 weeks ago to replace a broken DVR for my security system. It arrived quickly and just as described. It was very easy to set up. I am very happy with my purchase.

    MrMrs November 30, 2015

    We bought this a month ago for security cameras around our home and like it because it doesn't take up much room, easy to operate, clear pictures and it works very well. I recommend it.

    AnGer November 30, 2015

    Got this to replace an older DVR that no longer recorded. So far there are no issues and the upgrades from the previous dvr are much nicer. The only thing that doesn't work is the CD that came with it for the installation instructions, etc.
    It is very user friendly.

    Susie November 30, 2015

    I brought this camera system in February thru Groupon. The price was great and received it in a timely manner. I didn't get it installed until 8/5/14 and ran into a minor problem with one of the cables. After being frustrated about one camera cable I was able to reach a rep name Julie who resolved my frustration.

    Jeff November 30, 2015

    I bought the 3 wireless cameras and then the dvr. I never thought the notification functions would work with the dvr because all 3 cameras went into 1 port. It worked perfectly!!! The wireless cameras work great an give me flexability. Gonna add 1 more wireless and 1 wired

    MYRIAM November 30, 2015