What is approx cost to replace Low Oil/Stop Engine Sensor on 2004 Cadillac DeVille

My dash warning lights are reflecting Low Oil Pressure & STOP ENGINE. The oil has been checked each time this occurs and have also had a small auto shop use a plug in diagnoses device that reflected that I had a "malfunctioned sensor" issue and was told to replace the sensor. Any ideas of approx. cost to replace this sensor?

Asked by for the 2004 Cadillac DeVille
1 answer
It's not that much, it screws into the oil pan, not that hard to change. Now if someone uses the labor guide it will cost more. Part around $50.00 at O'Reilly.