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

Is the daytime image normal? If the normal day, it is likely that the infrared light-related components are broken, there may be problems with the photoresistor.

Q:What is the difference between a camera's double point and a single lamp point?

The camera's double dot-in-the-spot light and single-digit array lamp is just a different number of infrared light popular name, there is an array of infrared light camera called single lamp array, two is called double lamp array.

Q:6mm camera and 3mm camera What is the difference

1,6mm and 3mm refers to the size of the lens;

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

Simple point is the clarity, the higher the value of the higher the definition, the brand, the quality is more important. Some cottage virtual index, to choose the brand and good quality

Q:What is the difference between a wireless surveillance camera and a cable surveillance camera?

Wired relative to the wireless signal a little better, the wireless a little easier, the quality of a clear choice of cable is better.

Q:What is the difference between monitoring cameras CCD1 / 3 and 1/4?

CCD chip has developed a variety of sizes: the current use of the majority of the chip 1/3 "and 1/4". In the purchase, especially when the camera angle is more stringent requirements, CCD target surface size, CCD and lens with the situation will directly affect the size of the field of view and image clarity. 1 inch - target size is wide 12.7mm * high 9.6mm, diagonal 16mm. 2/3 inch - target size is wide 8.8mm * high 6.6mm, diagonal 11mm. 1/2 inch - target size is wide 6.4mm * height 4.8mm, diagonal 8mm. 1/3 inch - target size is wide 4.8mm * high 3.6mm, diagonal 6mm. 1/4 inch - target size is wide 3.2mm * height 2.4mm, diagonal 4mm.

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

Camera digital camera The wide range of cameras, the basic principles of its work are the same: the optical image signal into electrical signals, in order to facilitate storage or transmission. When we shoot an object, the light reflected on the object is collected by the camera lens, focusing it on the light receiving surface of the camera (such as the target surface of the camera tube), and then through the imaging device to light into electricity, that is, "Video signal". Photoelectric signal is very weak, need to be pre-amplifier circuit to enlarge, and then through a variety of circuits for processing and adjustment, the final standard signal can be sent to the recorder and other recording media recorded, or spread through the transmission system or sent to the monitor display.

Q: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

It is easy to monitor the monitor is the home TV can you know the three links it? Three-way head is the video signal is divided into two head is the first video signal into the two is the video signal out of the installation method: you connect the camera to the monitor Q9 head into the three-head video signal out of the two head plus an extension Line on the OK three links head practical low price is not easy to install the video signal is generally 2-3 yuan a you use the words to do security monitoring on the market have to ask the way to sell this method does not need any other parts of the re-use What the distributor does not need to listen to people blindly be careful to be black you price

Q:Monitoring camera 6mm 8mm 12mm 16mm length and width can be according to how much.

At the same time, the same focal length, length and width shooting range also with the camera CCD has a relationship. Charge - coupled Device, Charge - coupled Device. It is a semiconductor device that converts optical images into electrical signals. At present, most of the CCD chip used in the surveillance camera is 1/3 "and 1/4", that is, the target size is 1/3 inch and 1/4 inch. CCD target surface size, CCD and lens with the situation will directly affect the size of the field of view and image clarity.

Q:An electronic surveillance camera every month to consume how much electricity

1, the general camera is divided into four, the ball machine, infrared one machine, infrared hemisphere machine and bolt;