Oil pressure not registering on Dakota digital gauge.

Did you check the sensor? Dodge sensors fail constantly. I have a 2007 SRT and dropped oil pressure with my daughter driving. Instead of pulling over, she drove home and told me (I panicked). But car was not making any noises and made it 30 miles. Sensor failed, and no did not cut engine off - at all.
How can I check the sensor? The sensor is brand new, and I do have oil pressure for sure. Check the oil pressure with a manual gauge.