Q:Monitor there is a camera monitor can not see, but the playback can see, how is it?

1, the composition of the monitoring system principle, front-end camera ---- monitoring host ---- monitor. The camera will collect the signal to the monitoring host, monitor the host output video signal to the monitor

Q:Wireless remote monitoring camera farthest to monitor how far

Monitoring distance unlimited, there is a network can monitor ... have

Q:Elevator in the monitor camera lens focal length with the number

Usually 3.6 mm lens angle can cover the entire elevator, 2.8 mm wide range for more space for the elevator. The larger the number of millimeters, the narrower the angle of view, look farther

Q:Monitor what is good for video recorders

Color it. From the quality point of view, basically what is called the brand, are very durable, not easy to bad.

Q:Explosion-proof surveillance cameras can be installed directly on the top of the tank

Explosion-proof surveillance cameras can be considered Shenzhen Rongfang technology companies related products

Q:Monitor the farthest distance from the camera can be far, which manufacturers out

Commonly used fixed lens camera lens focal length specifications are 4mm, 6mm, 8mm, 16mm, 25mm, viewing angle were about 80 degrees, 65 degrees, 50 degrees, 30 degrees, 15 degrees, the effective distance of 10 meters, 20 meters, 30 meters, 40 meters, 50 meters.

Q:Monitor the camera must be a separate threading it?

If it is not strong power will not affect what.

Q:What kind of surveillance camera points

Infrared integrated camera, integrated camera, infrared hemisphere, ordinary hemisphere, explosion-proof hemisphere, constant speed ball, medium speed ball, high speed ball, network camera, gun camera (low light, wide dynamic, color to black) And so on.

Q:I now on the 4th floor balcony by a monitor, the main monitoring downstairs car, what kind of camera is good

I suggest you put the width of the next I give you the election, the scope is not very wide, then the proposed election 6 or 8 mm so no blind car can see. Brand recommended domestic Hai Kang or Jing Yang foreign Samsung or Sony. The price is high but the quality is not blown. There are gods do not know to continue to ask questions

Q:Monitor camera lens 4-6-8-12-16MM difference.

These numbers on the lens label refer to the focal length of the lens. The larger the value, the farther the distance the lens can reach, but the angle becomes smaller.