Lurch wrote:

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.

A slight difference being that if you were transferring a level a long
distance with a conventional level, then you would (well should!)
reverse it each time you extend the level - that way you reverse out any
error each time. With a laser level you would not do this, so the base
accuracy needs to be better really.

--
Cheers,

John.

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