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FAQ

What is the difference between a network video encoder and a hard disk video recorder? And bolt machine cameras are the same as security monitoring? What kind of network video encoder used

The DVR mainly converts the analog video signal into a digital signal for storage (that is, video). Now the hard disk video recorders are generally with network transmission function. Know the product features also understand the use of places, the encoder is generally used for network monitoring.

What is the camera's shooting range? How much is the diameter?

The lens used in the camera is similar to the SLR camera, and is arranged in the order of 2.8mm, 3.6mm, 4mm, 6mm, 8mm, 12mm, 16mm, 24mm and so on. The smaller the number of millimeters, the wider the picture taken by the lens, but the closer the distance is; the larger the number of millimeters, the narrower the screen taken by the surveillance camera, but the farther the distance is.

Monitor the camera screen black

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

Monitor the camera, how much money one, the kind of video

20x4 = 80, camera power (outdoor): 25x4 = 100, auxiliary material (connector what little things): 50 wire you have to see your actual situation, and more use Flowers, less with less flowers

Does the surveillance camera itself have a record storage function?

But there is a class called the camcorder camera itself with a storage function, you can play through the menu video playback

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

3, PTZ is able to drive around the camera, up and down the rotation of the equipment, with it, you can achieve all-round camera within the classroom. In general, a fixed camera, can only see the classroom about 60% of the students, and the use of PTZ cameras can see the classroom in all directions and podium, blackboard. It can be mounted on a wall or ceiling. Selection of JIYEL produced JY-8009 indoor indoor pan / tilt, with a small size, beautiful appearance.

Is to use two TV sets, and can use this one to monitor the camera. Can I? How should I pick, but also with what accessories. Please prawn help me, thank you

The easiest way is what is not directly connected to the line, this method is the most simple and most reliable, with a long time to use three links is also easy to oxidize the problem! The line directly connected to the line, to the TV then then a lotus joint on the line, that is, like the DVD cable that line on the line!

Home wireless surveillance camera price, how much money?

HD network monitoring system is a popular in 2004, a high-definition home monitoring system, the main device is the wireless network camera. If you choose Puqing 30 million pixel price about 180 dollars or so, if it is 720P million HD price about 380 or so, with a 32G memory card price is about 140, computer display 500 yuan, so down the total About 820 yuan to 1,000 yuan or so. Of course, the above does not include the relevant accessories and storage control network DVR.