At ZP we are always aiming to better our existing products, regularly challenging ourselves to think outside the box! That being said we have decided to embark on a new material study to identify if we can improve both the robustness and the accuracy of our already impressive nitrate sensors. For those who haven't seen or don't know, the construction of a electrochemical sensor consists of electrodes which are covered with membranes which either inhibit or accelerate the movement of elements. Theses membranes are very thin and usually very delicate which is why it is crucial that a sensor placed in the ground is robust against rubbing a rock/grain of sand or being drenched in water. The study started by testing different polymers on the reference electrode, and is already producing promising results.