Outbound latency alert UOM

I am troubleshooting an outbound message route that has seen some significant latency. We assume it is receiving system not sending an ACK back in a timely fashion, but we want to be sure.

I tried setting up an Outbound Latency alert, setting the Source as the outbound thread and the comparison to >60. To me this meant if the outbound latency on the selected thread is >60 seconds, do the alert actions.

My problem is that the alert is triggering even though there are no messages in the recovery DB waiting for an ack.

Is that 60 I set 60 seconds or some other unit of measure? It isn’t listed in the documentation.

Mike