Double oil pressure gauge

This is a T for electric and machanical gauge for my ford van. I want to be sure to have at least one good reading.
http://i79.servimg.com/u/f79/11/09/71/78/t10.jpg

Thanks for the picture and you wrapped the threads to make sure it doesn't leak. An excellent way to get oil pressure to a light and a gauge. It's so simple and is a great way to do something.