The level sensing transmitter of type 681 with piezoresistive measuring elements have compensated, adjusted and amplified sensor signals which are available as standard voltage or current outputs. In the immersion-sensor version with a salt water and oil-resistant connection cable they are specially suited for level measurement, even in the presence of corrosive liquids. 
The cable incorporates a tube for compensation of the ambient pressure. Manufactured from stainless steel, its welded construction provides a watertight seal.

• Medium: Fluides, aggressive fluides, potable water
• Pressure range: 0 … 0.1 – 25 bar Output: 0 … 5 V, 0 … 10 V, 4 … 20 mA
• Accuracy: < 0.25% fs (< 0.05% fs on request)
• Electrical connection: Cable in several lengths
• Mechanically protected diaphragm due to special head design
• Effective overload protection due to chemically etched chip diaphragm and specially designed glass gland
• Compact construction using SMD technology, enhances operational reliability in the presence of shock and vibration
• Supplementary weight (option) improves stabilization of sensor in turbulent media