the present invention is a complete solution for mission critical facilities to create a safe environment and energy efficient crac system . the invented system collects mission critical facility volume environmental and energy data in real time , and uses big data analytics to provide adaptive group control to cracs . the data is visualized in 2d and 3d graphs , dashboard , history curves and reports locally and through the cloud . the present invention also provides user management to allow authorized users to view and control the racks / servers owned or rented by these users . the present invention is comprised of four companion patents : 1 ) a battery - powered wireless long life temperature and humidity sensor module , 2 ) an intelligent multi - channel wireless data acquisition gateway , 3 ) mission critical facility three dimension temperature contour generator , and 4 ) an adaptive automatic crac master control method .