gregtrb2 years ago+110Hello , Is one of these devices enough to get an accurate measurement for a 48m2 flat? Or do you need two? Thank you Show in original language (French)bruno_19632 years ago • purchased this product000purchased this productIt only measures where it is located. So it depends on the type of apartment/number of rooms whether one is enough.Show in original language (German)Commentfmo2 years ago • purchased this product000purchased this producti have the measuring device in a room of about 25m2 metres and it works perfectlyShow in original language (German)Comment