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FAQ

Will the video surveillance camera screen will jump out of this camera settings like the option?

Is the camera menu is transferred out, the general ball machine class camera will appear such problems, you can power the way to cancel the camera!

What is the name of the camera with the monitor?

Infrared waterproof integrated camera I have two, you see is not what you want!

What is the effective range of infrared surveillance cameras?

6 mm more than a narrow angle lens, the general effective distance is about 100 meters. And some 25 mm is about 150 meters, if the high-speed laser PTZ machine can reach 300 meters of infrared distance, but this cost is very high, about 13,000 or so, commonly used lens general angle is as follows: 2.8mm 101 ° 3.6 Mm 83 ° 4mm 76 ° 6mm 53 ° 8mm 35 ° 12mm 28 ° 16mm 21 ° 25mm 13 ° 1 / 3CCD and 1/4 CCD angle difference around 20 ° Hope to help you.

Monitor how much power the camera has

The general camera is 5W (with infrared)

The working principle of the camera with infrared light

Second, the infrared camera imaging principle In the night vision monitoring system, the conventional approach is to use the visible light, but this way there can not be hidden, easy to monitor the target and other shortcomings, so use less; the current hidden, scientific night vision monitoring Is the use of infrared camera technology. Infrared camera technology is divided into passive and active. Passive infrared camera technology is the use of any substance in the absolute zero (-273 ℃) are more than infrared radiation, the higher the temperature of the object, the more infrared radiation. The most typical of the cameras made with this principle is the infrared camera, but this special infrared camera is expensive and therefore limited to military or special occasions. The active infrared camera technology is the use of infrared light radiation "lighting" (mainly infrared light), the application of ordinary low-light black and white camera, color to black and white camera or infrared low-light color camera, feel around the scene and the environment reflected back to the infrared light to achieve Night vision monitoring. Active infrared camera technology is mature, stable, become the mainstream of night vision monitoring.

How quickly remember to monitor the camera model, to do business, such as the DS_2CD3T20D-I5 which is what is the Thank you

1.4 The camera type code is represented by an Arabic numeral, see Table 1. Code definition 1 General type camera 2 Integrated camera 5 Dome camera 7 IP dome camera 8 IP gun type camera

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.

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.