The water hardness tester is a mobile measuring device for liquid analysis. This enables the most varied of measurements to be carried out with the water hardness tester. With this water hardness tester, for example, it is possible to determine alkalinity, chlorine, cyanuric acid or the pH value. In order to carry out a measurement with the water hardness tester, a water sample of 10 ml must be placed in a cuvette. The built-in LED in the water hardness tester generates a test light in the wavelength ranges of 503 nm, 570 nm and 620 nm. A photodiode now recognizes the value to be measured based on the light transmission of the sample.

Each measurement is automatically saved by the water hardness tester. The stored measured values ​​can then be read out, for example, via a mobile device via the Bluetooth interface built into the water hardness tester. A free app is available to analyze the measured values ​​from the water hardness tester. It is also possible to establish a Bluetooth connection between the water hardness tester and a computer. Free software is also available for this, with which the measurement data can be analyzed. As another special feature of the water hardness tester, the measurement data can be uploaded to a cloud using both variants and accessed from anywhere. This service for the water hardness tester is also free of charge.