Fabrikstr. 3
DE 48599 Gronau
Ms. Ellen Breteler
Products and innovations



The AquaTesterPro measures the most important water values in just a few seconds. This electronic water analyser allows you to check water quality often and easily.

The digital test results are very accurate and they can be sent to your smartphone or tablet via bluetooth. The AquaTesterPro app uses the values for a complete diagnosis and history of the water. You then receive smart advice from Velda to maintain water quality and prevent any problems.

  • The AquaTesterPro with freshwater indicators from Velda measures the most important water values in ponds and aquariums – but also, for example, in surface water and groundwater – in just a few seconds. pH, GH, KH, TA, NO2, NO3, Cl2 and CO2.
  • Also available: indicators for testing PO4 (phosphate) and NH3/4 (ammonia/ammonium).