 Water leak sensors: The quantity suggested is based on estimate based on the number of racks and CRAC units. The actual quantity may depend on the size of the room. The quantity must be changed as required.

The CRAC units and UPS to be monitored by dry contact by the NTI EMS. 
Otherwise the user can directly monitor through IP. 

If the IP monitoring of the CRAC units and UPS to be done through the software, then DCIM software is required. DCIM software can also monitor intelligent Rack PDUs and the assets in the data center