Total number of SEP clients count

Hi,

I have two sites each running SEPM 12.1.6. I need to get total number of clients installed in both sites. 

I know in SEPM under Home tab there is "Total Endpoints" field. But i believe it only shows clients that have checked in after x number of days.

I need to get accurate count of all the SEP clients that have been installed irregardless of if they haven't checked in for lets say 30 days or more.