LAR's product range covers water analyzers for the most important sum parameters as TOC, COD, TOD, BOD, toxicity, TN, TP, and Oil-in-Water. In 2020 the Hygrocontrol CosaXentaur GmbH has been integrated into LAR. The measurement systems are used in three major areas of application: Environmental monitoring, municipal facilities and industry.

Based on the analyzers' high precision and speed, they allow an optimal controlling of processes, safe supervision of industrial and municipal waste water treatment plants, reliable monitoring of surface water and inflows of rivers/lakes.