Water quality testing is fundamental for the development of the water sector and the reduction of waterborne diseases. We support organizations in doing water quality testing, operating successful water laboratories and ensuring safe drinking water quality under limited conditions.

LetzTEST Water Quality

Our +10 years of practical experience have taught us the problems presented by water quality testing in regions with limited infrastructure. We have often found ourselves in the field or in the laboratory, dealing with unfavorable conditions and inappropriate equipment that caused more trouble than it was worth. As a result, we developed our own equipment which is : independent from electricity, robust, easy to use, easy to transport, not susceptible to errors, independent from consumables, made in Germany.


Fecal Bacteria

Quantitative Testing

Fecal Bacteria

Presence/Absence Testing

Fecal Bacteria

Electricity-Free Incubation 37°C



Chemical Parameters & Turbidity

SMART Photometer

pH, Conductivity, TDS, Temperature

SMART Multimeter


LetzTEST Support

In more than ten years of practical experience, we have identified critical success factors for operating successful water laboratories in areas of limited infrastructure! In the very practical and participatory workshops, the trainees experience water quality testing firsthand and learn how to successfully manage a water testing laboratory.

Practical Progressive   Intelligible Based on unique critical success factors

Individually adapted to local conditions Following a step-by-step approach International trainers


What our Partners say