MK133 led voltages

I was wondering what the voltages should be at on the led’s for the MK133. I am looking to put external indicators like another poster mentioned, but I’m not sure what type of a relay would be nessicary. Could you suggest the spec’s or an product that would work in this situation.

Also would there be enough voltage to drive a relay or would a transistor be needed?

Thank You

The outputs supply 9V at a max of 50mA. You need a low current relay.
You can run the kit on 12V with no problems and use a 12V low current relay. Make sure to connect protection diodes over the relay coils.