The range and accuracy of laser distance meters like the Leica Disto E7100i, D2, E7300, E7400, E7500, E7500i, D810 and S910, all depend on light conditions and reflectivity of the measuring target.

For Leica Geosystems it is important that the instruments not only perform under perfect laboratory conditions, but above all under the kind of everyday working conditions encountered on construction sites.  This is why, working together with external experts, the company has developed an ISO standard by which laser distance meters can be tested and compared with each other.

As far as accuracy and range are concerned this actually means that the specified performances are met under practical working conditions and not just under those perfectly prepared in the laboratory.

A customer who purchases a laser distance meter which conforms to the ISO standard can arrive, at reliable conclusions with respect to the maximum range and accuracy achievable under defined measuring conditions.  This is crucial for assessing the advantages for everyday use on the construction site.