Yes, on the outside meter. It comes with a magnet with a double sided tape which you place around the LED, and the sensor itself just hangs on the magnet. But I'm not sure if american meters provide such interface.

I've asked the utility provider for some kind of official, approved, solution, but all they have to offer was to replace the entire meter, and even that would only report a 15 minute average via some proprietary API. The frient device is clearly a better solution. No wonder they were sold out for months.