Will the more recent releases of SiteMate log more than one product?

I have a Raven 750 controller with 2 direct injection pumps.  I'm going to spot spray some thistle patches with this Raven direct inject system.  The carrier/Product 1 and Product 2 will be applied to the entire field so logging when Product 3 is running will accomplish what I need (in lieu of being able to log 2-3 products at the same time.)  What wire do I need to tap to get the "high" signal that the Product 3 pump is running?  I'm using a relay to isolate my IPAQ from the 12v system.