Had a look on Which and they all say things like Outdoor range - 300m, indoor Victorian house range - 5m. We'll be more than 5m away and already struggle a bit with our phones losing reception, and although our dc aren't tiny babies anymore, we obviously need to be able to hear them if they cry or anything happens.
So, anyone got experience of a fab monitor that actually works in a victorian house. There won't be any doors between the baby unit and the parent unit but as the crow flies there'll be walls and floors (well, one floor, it's not that big an extension)??