Hydrostatic level meter HLM–25C is compact measuring device containing ceramic tensometric sensor and evaluation electronics in stainless steel probe. Ceramic sensor is resistant to lightly soiled, or sludge water. From the probe housing comes out 2-wire cable with capillary (for atmospheric pressure compensation). The front side of the sensor is open, therefore the level meter is resistant to capture gross (solid) impurities. The level meter has no customer-accessible adjusting elements.