Thanks Geoff, those were the words I was looking for. Go down to the Wards develop a decent relationship with them and you won't have to look for anything. Now don't laugh but we have a number of Plum pumps connected to our wireless network with one of the thoughts being that we could locate them with ease. Turns out they don't always speak to the nearest access point, it's usually one floor out above or below. Sorry chaps expensive way to track your equipment. Hard to justify in my view.