Security Multi-Cam System

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· Channel-scan for multi-camera monitoring
· Night vision (Effective range: 7m)
· Alloyed shell, Weather-proof structure for outdoor installation
· Built-in microphone for audio monitoring
· Up to 100m (330ft.) Transmission range in open space

Q: How to use video surveillance video surveillance: Forget to tell you, a decoder card (4 Road Dahua) 1200 yuan, 300 yuan conversion interface.

Q: 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.

Q: Police surveillance camera and civilian What is the difference?: Such as prisons, interrogation rooms, etc., need to use the explosion-proof damage to the camera, the police need to use the car head (plus lift rod), due to the increase in functionality, the cost will be relative to the increase, these are civilian do not need.

Q: What is the number of lines that a surveillance camera needs to use?: General monitoring of the camera needs a line of power lines, video lines, audio lines and so on

Q: Surveillance video can only save 4 days (the original can save about 15 days), is not the hard disk video recorder is a problem?: If that's the case, then you can consider replacing the hard drive.

Q: Zhongwei HD monitoring system IP address is not how to do: Also may also be connected to the camera cable disconnection (usually bad contact or broken network), or the camera power cord circuit (the same as above), check

Q: HD camera is said that his clarity, infrared camera is that it's night vision function, in order to highlight the main features of the name of a: 2, the lens sub-focus lens and zoom lens. Zoom lens focal length is variable, the scene can be closer to or push away, to achieve several times the zoom effect, use it to the blackboard on the board book clearly, can also be the whole picture of the classroom, the focus can not be achieved this function. Equipped with a lens for the electric three variable lens, can be zoom, focus and aperture adjustment. Zoom to zoom in and out of the picture, change the viewing angle and image size; adjust the focus and aperture, adjust the image clarity. Can be classroom teacher or a student's big picture clear real-time fixed in the entire screen, can also push to the whole class image.

Q: How to use the network cable to connect the surveillance camera?: 2, some camera is a digital camera, direct use of cable digital transmission of video, cameras and video recorders are connected through the network cable on the switch, are transmitted through the network video.

Q: Monitor how the camera will suddenly no color: 1, lack of light, color to black camera automatically switch to black and white mode;

Q: I would like to ask how the video surveillance camera is powered?: ???You can use a centralized power supply, so easy to manage. You can go to the market to buy an equivalent voltage, but the power is much larger power module, and then put all the cameras Of the power lines are connected, (positive to the lower, negative to the negative, must not be reversed) and then unified connected to the power module.

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