In message , "Dave Plowman (News)"
wrote
In article ,
John Rumm wrote:
They do, however, turn up on Ebay regularly often in mint condition. Go
for maybe 150 quid.

Must admit I have never quite understood the big attraction with Avos.
Yes OK they are class 1 accuracy, and have a nice big meter movement,
but are they really *that* good to command such a price? Or is there
something they will do (besides keep heavy doors proped open) that I
have missed?

They were simply the UK industry standard.

I think the operative word is 'were'.
They were outclassed on performance twenty years ago.

The price probably doesn't reflect the quality of the meter but the cost
of the calibration and the tractability back to standards.

The average 'certified' electrician will be paying £100s to get their
existing equipment calibrated each year.

--
Alan