Q:What is the reason for monitoring the camera's black screen?

First, check the power supply under the surveillance camera is a problem, if it is infrared surveillance cameras, can see the red light at night, then that power supply normal; if not, you can use a multimeter on the power supply and power lines to measure.

Q:How to install a camera at home, I can visit a website outside the home to monitor the situation?

Second, through the camera with the client software landing: enter the user name password can be real-time monitoring of the camera screen.

Q:What is the number of millimeters that monitor the camera?

General surveillance camera to see the 4mm, 6mm, 8mm, 12mm, 16mm These lenses are generally divided into wide-angle, ordinary, long focal length, you can according to the parameters of the range, the most important thing is your camera installation location to You monitor the distance of the area.

Q:Monitor the camera when shooting white, is the kind of white, basically do not see the image, and exposure like

Your camera should be the kind of fixed focus is not adjustable I can clearly tell you that your CCD chip problems Warranty bar as long as no burn is to free repair

Q:What is the minimum illuminance indicator of the surveillance camera?

Therefore, the use of different F value of the lens, the camera's minimum illumination value of the determination will have a decisive impact. Second, the light source color temperature. The color temperature is an indicator of the light wavelength content in the light source. A 3200K light source is mostly between 600 nm and 900 nm, and a 9300K light source is between 300 and 500 nm, so the different color temperatures will change completely Test Results. On a typical CCD sensor, a light source with a wavelength of 600 nanometers will produce 10 times more electrons than a wavelength of 900 nanometers. This is why the color temperature is particularly marked for the meaning of the minimum illumination measurement results.

Q:Monitoring camera POE power supply is good, or centralized power supply good?

With the POE-powered switch and the exchange of the difference between the exchange is enough to buy the power of the! POE power supply is a relatively high demand for the switch, the second is extremely unstable, but also increase the post-sale probability!

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

Install the variable speed movement of the ball machine lens can achieve 30 times zoom, the focal length is generally from 4mm to 96mm, monitoring distance can reach about 150 meters.

Q:Monitor the camera hemispherical gun shape which is good

Both are different from the installation site, the dome camera is only installed in the indoor site, gun camera can be installed indoors can also be installed outdoors. The dome camera lens due to the installation site is small, it's fixed lens only 3.6 - 8MM three; and gun-type camera it's fixed lens to have a variety of 3.6--16MM, so it's big camera Far more, but according to the angle of the small lens is not wide.

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:Monitor the camera infrared light does not shine what is the reason

Daylight is not bright, or only see the little red dot, because the infrared light only issued infrared light. People can not see, only to see the red red dot red