Underground air condition track exactly in all times with gas monitoring system. Gas sensor network setup necessary location which is main inclined shaft entrances, each production area both air entrance and exhaust roads, air return site of the preparation tunnel and main exhaust inclined shaft. These gas sensors are sniffer by,

Oxygen (O2), Carbon monoxide (CO), Carbon dioxide (CO2), Methane (CH4), Hydrogen Sulphide (H2S), Air Velocity, Humidity and Temperature measurement is long term saved. (Group of six sensors)

Also underground personal tracking system monitor in this center effectively.

Push to talk system instantly communicates between all underground airways and control center.