emonTx V3.4 + pulse sensor + CTs and AC adapter: OK?

I am a bit confused about the suitability of adding a pulse sensor to an emonTx V3.4 running off an 9 VAC supply - given the power supply limitations when powering from AC.

So: will the following be okay, or will I need to also supply DC?

emonTx V3.4:

  • 4 CT's
  • AC Adapter, with AC used for true power calculations and as the supply for the unit.
  • Pulse sensor for utility meter - stock from openenergymonitor.org. Current draw from specs: 8 ma  during 100msec pulse, otherwise negligible