  Experimental complex (EC) NEVOD includes a number of unique experimental
facilities for studies of main components of cosmic rays on the Earth's
surface. The complex is used for the basic research of CR flux characteristics
and their interactions in the energy range 10^15 - 10^19 eV, and for applied
investigations directed to the development of methods of the muon diagnostics
of the atmosphere and the Earth's magnetosphere and near-terrestrial space. To
extend the experimental capabilities and raising the status of the installation
to the Mega Science level, nowadays new large-scale detectors: array for the
EAS registration - NEVOD-EAS, detector of atmospheric neutrons - URAN, and
large-area coordinate-tracking detector - TREK, are being deployed around EC
NEVOD. The description of new detectors and a common trigger system to ensure
the joint operation together with other detectors of EC NEVOD are presented.
