PZ-7 is a wireless communication monitoring communication system, integrating wireless communication and color monitor into one. This system is widely used in the subway, the gallery, the mine shaft, the cave and some other emergency scenes.
The console is equipped with the color monitor, which is suitable for the control places. It is connected with the transceiver through safety rope to transmit the color video signal and the sound signal to the console. The camera has several small infrared bulbs, which can be used in lightless condition.
The communication system (including console, transceiver and intercoms) is suitable for coal mine and explosive conditions type I, II A and II B.