mongodb – Notification for host failure and health status

I set up a mongodb cluster with replica sets for high availability. My configuration seems to work well, as the database can operate even if I turn off some of my hosts.

My question is: How can I find out that a host failed or get the health status of the cluster? I wish to have something like a dashboard or a “health status”. My current solution is to connect to the cluster and query the replication state once in a while.

Can anybody recommend a tool which reports failover per email or provides a kind of dashboard where I can see the cluster health?

I already searched for solutions and found solutions like this:
Percona Monitoring and Management but it considers performance metrics rather than failover related information.

Thank you for your help.