Digital Wireless Home Surveillance CM-2

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· 4CH digital wireless camera & DVR system, no interferences, no privacy leak
· Simple installation- no video cables required!
· 2.4GHz digital wireless receiver with integrated video recorder
· Support up to 32GB SD card or external 1TB mobile disk by USB2.0
· Support 4 cameras/ 24hours /7days non-stop overwrite recording
· Multiple recording modes: manual, schedule, and PIR activated
· 5meter night vision range
· Video quality: 4CH VGA 15fps, 1CH VGA 30fps
· Weather proof outdoor cameras with 300 m/1000ft transmission open range
· AV output function for monitoring in Quad mode

Q: Monitor the video recorder has been unable to work what is the reason: Use the environment to have static electricity or current. You can try the recorder ground wire;

Q: Now the surveillance camera really tmd nonsense, four hundred or five hundred products with more than a hundred USB camera are not as good as poor resolution did not shadow, and generally are so, monitoring products are pit father,: Mode. CMOS is complementary to each other metal oxide semiconductor, CMOS is mainly the use of silicon and germanium made of these two elements of the semiconductor, through the CMOS on the negatively charged and positively charged transistor to achieve the basic functions

Q: What does it mean to monitor the camera channel?: Channel refers to the physical location of the video input of the camera on the monitoring matrix or the DVR device. Such as: ordinary hard disk video recorders support 16 video signals, so that the back of the hard disk video recorder has 16 video input interface, the channel refers to the physical location of these video interfaces, generally from left to right sort.

Q: What is the number of lines that a surveillance camera needs to use?: Video cable, audio cable is a AV, BNC and other interfaces used by the line, the power cord is the ordinary power cord

Q: Will the video surveillance camera screen will jump out of this camera settings like the option?: It should be accidentally transferred out of the camera settings menu, if it is, then select the corresponding camera, and then exit the menu

Q: 3.6mm and 6mm surveillance camera can see the screen angle is how much: This depends on how much the face of the CCD friends, 1/3 is 71 degrees 1/4 is more than 51 degrees

Q: The working principle of the camera with infrared light: First, the characteristics of infrared and infrared light light is an electromagnetic wave, with the same nature as the radio waves. Its wavelength range is from several nanometers (1nm = 10-9m) to about 1mm (mm). The visible wavelength is from 380nm to 780nm, the wavelength of visible light from long to short into red, orange, yellow, green, blue, blue, violet, the wavelength is shorter than the purple light, the wavelength of visible light is only a part of the visible light, visible light Called ultraviolet light, the wavelength is longer than the infrared light called infrared light. Infrared light wavelength between 780nm ~ 1000μm, located between the radio and visible light. Infrared light according to its infrared radiation mechanism is divided into semiconductor solid light (infrared emission diode IR LED) infrared light and heat radiation infrared light two. At present in the CCTV infrared camera in the former use more.

Q: Video surveillance camera pixel 1080P what it means: 1080P is a video display format developed by the American Society of Film and Television Engineers (SMPTE).

Q: Monitor the hard disk on the recorder is what format without formatting: Some video recorders have several hard drives. A record after the automatic record in the next hard disk. After the hard disk, you can remove the archive, put on a new one. You can not remove, then a few hard disk cycle recording, and the earliest images erased.

Q: Monitor the camera lens focal length is what the situation according to the scope of the big focal point what the situation according to the clear: The smaller the focal length, the larger the field of view, the smaller the number of people in the corresponding picture;

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