I recently got contacted about a contract to install these things, the money looked pretty good but then I saw the terms. You are expected to install 14 of these things a day. Now you would think that sounds easy but I've done metering in the past and while 14 gas meters on a building site is easy in peoples homes where there is travel between jobs, pipework etc etc I can't see how anyone can do 14 meters a day safely a day while complying with all the relevant gas regulations. And then I remembered a watch dog programme regarding gas leaks following the installation of a smart meter. Isn't it time gas safe looked into the companies installing these meters.