Model KBA4A I.S. Optic-fiber Video Camera is suitable for mine underground with explosive gas. The camera has built-in infrared LED for illumination and it employs monochrome CCD solid-state device for video record, and it has two transmission modes of optic-fiber and coaxial-cable. The integrated camera has characteristics of small volume, light weight, low illumination, no need of outer illumination, digital video optic signal transmission, high definition and anti-interference, and long transmission distance, and it is suitable for industrial television system for mine underground.