The JUMO MAERA S26 level probe is designed for the continuous hydrostatic level measurement of liquids. It provides accurate measurement of filling heights ranging from 2.5 mWS to 25 mWS (water column) in ventilated tanks. As the probe is immersed into a liquid, a liquid column emerges above it, creating a hydrostatic pressure on the measuring system. This pressure is transmitted as a standard signal, which is linearly proportional to the rising liquid level.