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The invention relates to a sensor arrangement for determining a tank fill level of a liquid, especially a reducing agent for removing nitrogen from the exhaust gases of an internal combustion engine, which liquid is contained in a tank, at least two electrically conductive measuring electrodes being

The invention relates to a sensor arrangement for determining a tank fill level of a liquid, especially a reducing agent for removing nitrogen from the exhaust gases of an internal combustion engine, which liquid is contained in a tank, at least two electrically conductive measuring electrodes being at least partially embedded in a carrier that is produced of an electrically non-conductive material. The sensor arrangement includes a temperature sensor, especially a resistor with negative temperature coefficient being used as a temperature sensor, which is integrated into the carrier.

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1. A sensor arrangement for determining a fill level of a liquid contained in a tank, the sensor arrangement comprising: at least two electrically conductive measuring electrodes embedded at least partly in a support of electrically nonconductive material, the support including a hook;a temperature

1. A sensor arrangement for determining a fill level of a liquid contained in a tank, the sensor arrangement comprising: at least two electrically conductive measuring electrodes embedded at least partly in a support of electrically nonconductive material, the support including a hook;a temperature sensor, having a negative temperature coefficient, integrated with the support;a covering region hardened around the hook to secure the covering region to the support; anda separator plate disposed between the covering region and the support. 2. The sensor arrangement as defined by claim 1, wherein the temperature sensor is disposed in an interior of the support. 3. The sensor arrangement as defined by claim 2, wherein the temperature sensor is located in a tubular region of the support. 4. The sensor arrangement as defined by claim 3, wherein the measuring electrodes are disposed essentially parallel to one another, and the tubular region extends parallel to the measuring electrodes. 5. The sensor arrangement as defined by claim 4, wherein the tubular region is integrally joined to the covering region. 6. The sensor arrangement as defined by claim 3, wherein the tubular region is integrally joined to the covering region. 7. The sensor arrangement as defined by claim 1, wherein one end of the at least two measuring electrodes are sealed off from influences of liquid by the covering region. 8. The sensor arrangement as defined by claim 1, further including sealing elements disposed between the separator plate and the support that seal off the measuring electrodes. 9. The sensor arrangement as defined by claim 1, wherein the support is a first spray-coated support, and wherein the temperature sensor is integrated into the support in a second spray coating. 10. The sensor arrangement as defined by claim 1, wherein the temperature sensor is disposed on a side of the measuring electrodes that is intended for placement near a bottom of the tank. 11. The sensor arrangement as defined by claim 1, wherein the support is made of plastic. 12. The sensor arrangement as defined by claim 1, wherein the support is produced by spray-coating the measuring electrodes with the electrically nonconductive material. 13. A method for producing a sensor arrangement as defined by claim 1, comprising the steps of: at least partially embedding two measuring electrodes with a first spray-coating to form a support;integrating a temperature sensor, having a negative temperature coefficient, with the support by embedding the temperature sensor with a second spray-coating; andforming a hardened covering region with the second spray-coating, the covering region extending over a hook on the support and securing the covering region to the support. 14. The method of claim 13, wherein the step of forming the covering region includes directing a flow of the second spray-coating over the hook, and cooling the flow of the second spray-coating. 15. The method of claim 14, wherein the support is cooler than the second spray-coating when the flow of second spray-coating is directed over the hook. 16. The method of claim 13, wherein the support includes a closure edge, and wherein the step of forming the covering region includes directing the second spray-coating into an area between the hook and the closure edge. 17. The method of claim 13, wherein the hook forms a melting edge that forms a sealing location between the covering region and the support during the step of forming the covering region. 18. The method of claim 13, wherein both the first and second spray-coatings are non-conductive spray coatings. 19. The method of claim 13, wherein the second spray coating forms a tubular region extending into the support. 20. The method of claim 19, wherein the temperature sensor is embedded in the tubular region.