Illegal dollar char in service name

I want to monitor an MS SQL service called MSSQL$EPO_DATABASE, using the check_nt plugin.
I’ve tried escaping the dollar sign, and also doubling it, but without success.

How can I do this?

I found the answer – escape the dollar, and also double it. Like this:

MSSQL$$EPO_DATABASE.

Yippee!
Thanks for the quick response! Its working like a wiz now!

Ang