Combined with the display it provide precise level measuement information. The electronic system (IP 67) is sealed and frost-proof, so is suitable for problematic locations, such as at underfloor tanks. All Votronic measuring sensors work with the capacitive measuring method and independently of pressure. Therefore, a falsification of the measured values in case of overpressure in the tank, pressure filling etc. is avoided. They includes a protection against reverse battery, overvoltage, short-circuit and overload.