Cctv Camera Purchase

Outdoor IP CCTV Camera
Outdoor IP CCTV Camera
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HD Wireless CCTV Camera
HD Wireless CCTV Camera
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Waterproof CCTV Camera 700TVL
Waterproof CCTV Camera 700TVL
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Min Order Qty: 100pcs pc
Supply Capability: 10,000pcs per month pc/month
CCTV camera-500C
CCTV camera-500C
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Min Order Qty: 100pcs pc
Supply Capability: 10000pcs per month pc/month
Cheap CCTV Camera System
Cheap CCTV Camera System
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SunView Indoor  CCTV Camera
SunView Indoor CCTV Camera
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Cctv Camera Fixed Len
Cctv Camera Fixed Len
Ref Price: $1.03 - 103.00 / pc
Min Order Qty: 50 Pieces pc
Supply Capability: 1000 Piece/Pieces per Day negotiable pc/month
Home Security Camera CCTV Camera
Home Security Camera CCTV Camera
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Low Illumination Analog CCTV Camera
Low Illumination Analog CCTV Camera
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Outdoor IR Dome CCTV Camera
Outdoor IR Dome CCTV Camera
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Wholesale AHD DVR Cctv Camera
Wholesale AHD DVR Cctv Camera
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Multi Lens IR CCTV Camera
Multi Lens IR CCTV Camera
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HD SDI Megapixel CCTV Camera
HD SDI Megapixel CCTV Camera
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Home Security CCTV Camera System
Home Security CCTV Camera System
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Min Order Qty: 100pcs pc
Supply Capability: 10,000pcs per month pc/month
Convert Analog CCTV To IP CCTV Camera
Convert Analog CCTV To IP CCTV Camera
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CCTV Camera 720P Factory  Bullet Camera
CCTV Camera 720P Factory Bullet Camera
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CCTV Camera 3.5 Metal Dome Camera with 2.8-12mm Manual Varifocal Lens
Vandal proof  HD AHD  IR dome CCTV Camera
Vandal proof HD AHD IR dome CCTV Camera
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CCTV Camera IR Waterproof Fixed Camera with 23pcs IR Leds and  20M IR Range 420-1000TVL
CCTV Camera Metal Dome Camera with 23pcs IR Leds Match 3-Axis Cable Built-in Bracket
CCTV Camera CM-K9-S95 1/3 800TVL CMOS Camera,DC12V 8150DSP+139Sensoe
CCTV Camera CM-K9-S95 1/3 800TVL CMOS Camera,DC12V 8150DSP+139Sensoe
Ref Price: $20.70 / pc
Min Order Qty: 5 Pcs pc
Supply Capability: 20000 Pcs Per Month pc/month
CCTV Camera Metal Dome Camera with 23pcs IR Leds CMOS, CCD Optional
CMOS DAY AND NIGHT CHEAP CCTV Camera
CMOS DAY AND NIGHT CHEAP CCTV Camera
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IR-CUT Night Vision CCTV Camera
IR-CUT Night Vision CCTV Camera
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CCTV Camera 4.5 Metal Dome Camera with 21pcs Leds Sony, Sharp CCD Optional
CCTV Camera IR Waterproof Fixed Camera with 30pcs IR Leds and  25M IR Range 420-1000TVL
CCTV Camera Metal Dome Camera with 36pcs IR Leds CMOS, CCD Optional
a CCTV Camera CM-K18-S108 1/3 800TVL CMOS Camera,DC12V 8150DSP+139Sensoe
a CCTV Camera CM-K18-S108 1/3 800TVL CMOS Camera,DC12V 8150DSP+139Sensoe
Ref Price: $41.40 / pc
Min Order Qty: 5 Pcs pc
Supply Capability: 20000 Pcs Per Month pc/month
CCTV Camera 4.5 Metal Dome Camera with 2.8-12mm Manual Varifocal Lens CCD CMOS Optional
Infrared Technology And Analog Camera Type CCTV Camera Bullet
Wireless HD Motherboard Full HD CCTV Camera
Wireless HD Motherboard Full HD CCTV Camera
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New Design High Quality Outdoor IR Waterproof  CCTV Camera
CCTV Camera 3.5 Metal Dome Camera with 36pcs Leds Sony, Sharp CCD Optional
IR Waterproof Outdoor CCTV Camera Series 60mm FLY-6014
IR Waterproof Outdoor CCTV Camera Series 60mm FLY-6014
Ref Price: $15.83 / pc
Min Order Qty: 5Pcs pc
Supply Capability: 10000Pcs Per Month pc/month
Outdoor Waterproof Laser  Bullet Proof CCTV Camera
Outdoor Waterproof Laser Bullet Proof CCTV Camera
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CCTV Camera Metal Dome Camera with 36pcs IR Leds Match 3-Axis Cable Built-in Bracket

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FAQ

Housing surveillance camera
According to the length of the cable, the camera's clarity is good or bad, a good camera generally a 160 or so can, the two together also 500 almost.s
An accurate calculation formula for monitoring the focal length and actual distance of the lens
So when you need to monitor the panorama to see the local, the general should consider the use of electric two variable or electric three variable lens. Of course, in the selected lens under the premise of the use of high-resolution cameras and monitors can be monitored objects in the smaller size can also see the local details.s
How does the surveillance camera solve the backlight problem?
In general, there are three main ways to deal with camera backlighting, one is to protect the camera as far as possible to prevent direct sunlight; the second is to use a corresponding improvement in the function of the camera, such as wide dynamic camera or backlight compensation camera; three can travel indoor light illumination, Reduce the contrast with outdoor light.s
What is the meaning of the camera function heartbeat?
In the previous case, the implementation steps are as follows: 1, in a unified authentication system to open a "heartbeat" thread, the timing of the implementation of a visit A system operation, access to the A system S interface; 2, A system to achieve an interface S, Function for each access to an access request, then record a record of access, for example: 2009-3-18 fw 3, System A also need to also open a "heartbeat" thread, not separated by a certain time, access to the interface S is done Visit the record to see if the last record of the old record logo, if not, then prove that the single point of the system has the latest "heartbeat" came, its function is no fault.s
57 Road 1080P surveillance video requirements to store a month, how much hard disk space?
4 Road 500G to the top of more than a month, few have more than 7TB, you can look at Taobao looking for the camera to buy the shop side, you ask people, he will tell you.s
Monitor the camera's focal length how to choose?
Second, in the choice to buy surveillance cameras at the same time, for the practical application is also essential, such as civilian-level surveillance cameras, in the same product will be divided into 3.6mm, 4mm, 6mm, 8mm, 12mm and so on different specifications of the lens indicators. These are the user to measure the size of their own needs, such as the use of 3.6mm lens, this is wide-angle lens, look at the scope of a wider, suitable for small space (elevator, etc.), often in open space, wide-angle lens may not be able to See the face, in order to see the face you need to choose the focal length and then some of the larger lens, the so-called telephoto lens, more suitable aisle or corridor, etc., of course, choose how much focal length of the lens have to see the distance to be monitored The. The focal length is bigger, and the range of images you want to see is smaller than you see now.s
A camera for an hour how much space
Depends on your video recorder video format is CIF or D1s
Monitor the camera in the monitor screen appears in the camera 001 what meaning
Specific recommendations to ask the two manufacturers of equipment. Personal feeling should be the camera with their own figures.s

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