On 26 Feb, 10:23, Lurch wrote:
On 26 Feb 2007 02:02:50 -0800, "David Sims" mused:

On 26 Feb, 03:01, "Weatherlawyer" wrote:
I got a screwfix catalogue last week that offered some levels by Forge
Steel. They have a self levelling one for £37 49 and a Rotary one for
the same price. Yet the bumph says that they are both self levelling.

Both are class II whatever that means, the first has a 10 m range
whilst the rotary has a 30 m range. So what are the likely differences
anyone know?

http://www.screwfix.com/search.do;js...ABOCSTHZOCFEY?....

If you load the instruction manual for the rotary the accuracy which
is quoted in +/- mm per m is 1 which seems an awful lot. At 5m you are
going to be 5 mm out (possibly)

Most fixed levels are accurate to around 1mm in 1000mm so not really
any different.
--
Regards,
Stuart.

Stanley SP5 +- 0.2mm per m