H-Tronic water level switches and water sensors work in conjunction with conductive liquids.
Water is not the same as water, depending on the salts dissolved in it or Ions, water can be more or less conductive. An adequate conductivity of the liquid to be measured is important for the proper functioning of the water sensors.
Tap water, salt water or contaminated water are good conductive liquids. Osmosis water, distilled water or pure rain water are poorly conductive liquids and may therefore not be suitable for water sensors.
Especially in the case of rain water, the function of the water sensor may be alternating, since the conductivity of rain water is subject to strong fluctuations due to environmental influences.
If you want to use a water level switch for poorly conductive liquids, we recommend that you use a mechanical float switch from our assortment instead of a water sensor.