The hardware improvements are supported by an increasing number of testing kits – also in various more economic package sizes to fullfil on-going environmental requirements. The new analytical method data can be updated by Internet. Test kits minimize the handling of chemicals, which is not only easier but also gives best reliability for the results with less statistical spread!The photoLab S6 is the quick and cost effective solution for routine measurements in Waste Water Analysis. The photoLab S12 with functionality for user-defined methods, cinetic functions and 12 wavelength is a suitable and economic standard photometer for every lab task. The Photolab Spektral with the excellent optical system of ZEISS offers high precision measurement: stepless from 340-850 nm in 1 nm steps with an accuracy of < 1 nm and more special functions.