1 Question: Our position is northeast, at recent time, some problem about camera has arisen that blurred or blue image has always appeared at night. But it is normal in the daytime. What is the reason?

Response: It is normal phenomenon, it is cause of too low working temperature. Installing heating apparatus inside of protective guard is the essential solution.

2 Question: Our position is north, at recent time, some problem about camera has arisen that blurred or blue image has always appeared at noon. But it is normal in the other time. What is the reason?

Response: It is normal phenomenon, it is cause of too high working temperature. Enlarger the bulk of protective guard or speed up the revolution is the essential solution. Do not directly irradiate the sunshine on protective guard.

3.Question: We are ×× warehouse, The camera we just buy from your company has appeared blurred image, there are black shadow if looking seriously. Is that the quality issue of camera?

Response: It is dusty of your warehouse and have not the Dust-proof equipment for your camera, so attached too much dust on lens ,please clean lens.