My meter is in the pavement, not in the house.
The installer said the range was sufficient to read meters in the top
floor flat where the meter was up there from the road in the trials. The
meter has a battery in it, and I believe is listening for a wakeup
signal sent to its serial number, to then send the data, so the battery
should last 10 years or so.
Some of the meters send a reading every 15 seconds or so, but I am not
sure if this is the case with this one.