I have my Iro2 'integrated' with the Web Energy Logger (WEL) -
No control of the Iro2 is possible.
I do get charts on performance, such as
(hourly usage for last 36 hours of activity),
(chart showing daily usage for last 13 months), and
(chart showing monthly usage for last 13 months).
If I were to go to the effort of putting in a flow sensor then I could restate the charts in actual gallons.
The WEL can supports a h/w interface 'out of the box.' My WEL is connected to the master valve contacts for total Iro2 on time, and connected to sense the presence/absence of voltage at the controller's zone 10 terminals for swimming pool water usage.
I do have email / text message sending ability, but, I don't have it turned on. I.e., I could send an email to myself whenever the Iro2 turns on/off, or, a single designated zone does likewise. I can also send texts/emails if gpm or gallons doesn't make sense (i.e. indicating a break), but I don't have this turned on either.