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Alert System Type
Motion Alert
IP / Network / Ethernet
AC / DC Powered
B&W Cameras
Color Cameras
Ethernet Compatible
Infrared/Night illumination
Motion Activated
Motion Activated Recording
Remote Controlled
Remote Pan / Tilt
Status Indicators
Wall Mounted
# of Channels
8 Channels
# of Ports
2 Ports
# of LED's
48 LED's
Included # of Cameras
4 Cameras Included
2 TB (Terabytes)
Maximum Resolution
800 Lines
100 to 240V AC, 50/60Hz
Ease of Installation
Intermediate (Installs < 60 minutes)
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Professional Security Monitoring System in a Do-It-Yourself Kit
DEFENDER Sentinel Pro 8CH 2TB DVR with 4 IR LED Cameras, 800TVL
DEFENDER Sentinel Pro 8CH 2TB DVR with 4 IR LED Cameras, 800TVL
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Contents System Features DVR Features
DVR Rear View Camera Features
DEFENDER 21159 Sentinel Pro 8CH 2TB DVR with 4 IR LED Cameras, 800TVL
Item# 28504
Price: Normally $539.99 
Hot Deal $487.94
Free shipping on orders over $175 - See Details


  • Hi-res 800TVL weather-resistant cameras
  • 48 IR LEDs per camera provide night vision up to 150ft
  • Ample recording storage with 2TB DVR hard drive
  • Remote viewing through smart device or computer
  • Option for email alerts upon motion detection

Essential Info

The 21159 Sentinel Pro from DEFENDER is a professional quality security monitoring system for a home or office that can be installed by a DIY'er. It features an eight channel DVR (digital video recorder) with a built-in 2TB HDD (hard disk drive) and four hi-res 800TVL (TV lines) bullet cameras. Each camera needs to be connected to the DVR via included 65 foot FT4 (fire rated) cables. Upon setup of the system you will have access to a variety of viewing options giving you full access to see your property whether you're home or away. Through DEFENDER's remote viewing software you can network the DVR to the internet so that you'll be able to view live camera feeds, watch recorded footage and receive motion activated email alerts from a smart device or computer anywhere in the world, provided an internet connection is available. Additionally, the DVR can be connected directly to a monitor or TV for viewing with the ability to custom name channels, view picture-in-picture, full screen, quad screen, zoom or set sequence switching. Setting up and navigating the system is quick with the included USB mouse or via remote control.

What's Included

  • 1x - 8CH DVR w/ 2TB HDD
  • 4x - Outdoor Security Camera
  • 4x - 65ft FT4 Fire-Rated Cable
  • 3x - Power Adapter
  • 1x - 4-to-1 Power Splitter
  • 2x - BNC-to-RCA Connectors
  • 1x - RJ-45 Ethernet Cable
  • 1x - HDMI Cable
  • Mounting Hardware
  • 1x - USB Mouse
  • 1x - IR Remote + Batteries
  • 1x - Instruction Manual
  • 1x - Quick-Start Guide
  • 1x - Software CD
  • More Info

    The four cameras included with this system are high resolution 800TV Line cameras that will provide a crisp and clear picture of whatever is being monitored. Each camera is weather-resistant and IP66 rated to protect the camera from the elements year-round if being installed outdoors. Built-in to the cameras are 48 IR (infra-red) LEDs which allow each camera to see up to 150 feet away in complete darkness. The infra-red LEDs do not emit a visible light either so while they're monitoring your property at night they will also stay completely hidden and out of sight. Vandal-resistant mounting hardware is also included with each camera which allows for a secure mount on just about any indoor or outdoor installation.

    Actual Footage from 800TVL DEFENDER Camera

    The brain of this system is the DVR which records footage of all the connected cameras and allows for live viewing of each camera feed. This high-powered DVR has a large 2TB hard drive which gives it the ability to store years of video footage that can be easily played back if ever needed. It's an eight channel DVR which allows for additional cameras to be added to the system if more are needed down the line. DEFENDER's Pro DVR lets you see more as it uses 960H technology which allows for 34% more surface visibility than that of standard security cameras. Setup of the DVR is quick. It connects to a monitor or TV with a VGA or HDMI cable and then lets you customize the system to your needs via a remote control or included USB mouse. The system provides options such as setting up email alerts upon motion detection, event searching and area masking (blurring out of faces or objects such as the combination lock to a safe). Once connected to a monitor or TV, a handful of viewing options will also be at your disposal such as picture-in-picture, full screen of a selected camera, quad screen, eight channel view, zoom and sequence switching. Included 1 Step remote viewing software will also allow for viewing of live camera feeds, watching saved footage and receiving of email alerts from a computer or smart device with an internet connection.


    Manufacturer Product No.21159
    Dimensions9.1in x 4.1in x 2.5in
    Weight1.15 lbs
    Image SensorSharp CCD
    Optimal Focal Length60ft
    IP RatingIP66
    IR LEDs48
    Night VisionYes
    Night Vision RangeUp to 150ft
    IR LED ControlAutomatic
    TV SystemNTSC
    Electronic Shutter (sec)1/60~1/100,000s
    Housing MaterialAluminum
    Housing ColorBlack
    Sun ShieldYes
    Operating Temperature14°~122°F
    Operating Humidity~90%RH
    Power100-240V AC
    Dimensions9.87in x 8.54in x 1.85in
    Weight19.84 lbs
    Video CompressionH.264
    Audio CompressionG.711
    # of Channels8
    Video Input8
    Video Output1CH BNC
    1CH VGA
    1CH HDMI
    Audio Input2CH
    Audio Output1CH
    USB Port2
    ResolutionPAL: 960×576
    NTSC: 960×480
    Recording Total Frame RatePAL: CIF/HD1/D1:200fps, WCIF:200fps;WHD1/ WD1:72fps
    NTSC: CIF/HD1/D1:240fps, WCIF:240fps;WHD1/ WD1:88fps
    Recording Frame Rate Per ChannelPAL: (each CH, Frame) CIF/HD1/D1:25fps, WCIF:25fps;WHD1/ WD1:9fps
    NTSC: (each CH, Frame)CIF/HD1/D1:30fps, WCIF:30fps;WHD1/ WD1:11fps
    Recording ResolutionPAL: 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 ModesMotion Record, Schedule, Always
    Post RecordingYes
    Recording MediaHDD
    Storage Capacity2TB
    HDD TypeInternal
    Video FormatNTSC/PAL
    Video Loss AlarmYes
    Audio Bitrate64kbps
    Live Frame Rate30fps
    Live ViewingFull, Quad, PIP, Zoom, Seq
    Network ProtocolTCP/IP, DDNS, DHCP, PPPoE, UDP
    Network LAN IPStatic, Dynamic
    Network Connection10/100 BaseT Ethernet (RJ-45)
    Supported Operated SystemsWindows XP, Windows Vista, Windows 7, OSX 10.5 or above
    BrowsersInternet Explorer, Safari
    Play Search ModeTime/Date, Event List
    Play Speed2x, 4x, 8x, 16x
    Time and Date Stamp DisplayYes
    Password ProtectionYes
    Disk Full WarningYes
    Automatic Overwrite OptionYes
    LED IndicatorsPower, HDD
    Housing MaterialAluminum
    Housing ColorBlack
    Operating Temperature41°~104°F
    Operating Humidity10%~90%
    Power100~240V AC
    Power Consumption10~15W


    Contents  System Features  DVR Features  DVR Rear View 
    Contents  System Features  DVR Features  DVR Rear View 
    Camera Features       
    Camera Features       


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