> reading polled usage off the meter simply won't do (I'm duping this comment from above) I've been recording my power and gas usage via RTL-SDR for over a yea

> reading polled usage off the meter simply won't do (I'm duping this comment from above) I've been recording my power and gas usage via RTL-SDR for over a year. You only get a data point a few times a minute (if that). However, I can usually (though not always), with context, tell that a big spike was my hot water heater vs air conditioner, etc.