An article about the use of Pulse Width Modulation Valves in field spraying appears in the 6/2020 issue of the agricultural trade journal "topagrar". Unfortunately, the name of IWN is not given - however a nice photograph of our sensor valve can be seen in the magazine. The link leads to a Teaser Text. Presently, only topagrar subscribers may read the complete article online.

Link to the german teaser text "Spritze mit Puls" on topagrar.com.