Q:Camera clarity, 1080p. 3mp. 4k, what does it mean

1080P that is 1920 × 1080 resolution, progressive scan (equivalent to two million pixels)

Q:What is the difference between a camera and a monitor?

With the monitoring system in the commercial and civilian increasingly popular, surveillance cameras (surveillance cameras) are widely used in various fields, escort for social security. Video surveillance cameras are widely used in residential, real estate villas, shopping malls shops, financial room, to security.

Q:What color is the monitor when the camera is turned on?

Do not really understand what you mean, is the camera after the power of the camera after the appearance of the state?

Q:Monitor the camera in the monitor screen appears in the camera 001 what meaning

One is the camera's own image on the name, you must enter the camera's menu, delete the name.

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;

Q:Infrared surveillance camera at night (no light) no picture and flash is how the matter

Check the time, pick the evening when people come close to the camera from the place to see if the infrared light is not activated, if the start, the infrared light will have a very weak red visible light is always bright. If there is no red visible light or not always bright, it can be basically the problem of infrared light. Of course, you also need to check whether the power is normal, if the voltage is low or the current is too small, it may cause the infrared light does not work.

Q:I would like to install at home and back door two cameras in general how much money?

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.

Q:Monitoring the camera has a 700 line with 1080 lines of 900 lines is what does that mean? consult

700 lines refers to the horizontal direction of the camera's resolution is 700 lines. The number of digits indicates that the higher the resolution, the more details you can shoot.

Q:Dahua monitor a single image upside down, the rest of the camera are good, how the matter, had been good!

I also encountered a similar situation, contact Dahua customer service, there is no solution, this is pit! Later changed the AnRui pass the camera, feeling okay

Q:Monitor the camera screen black

Acquisition card problem if not your driver is not installed. That is the acquisition card itself is a problem