This universal dual needle mechanical air gauge, part number HP10010, is a great choice for independent air pressure display. It features a black bezel and a white dial face. With dual input (dual needle), it can show air pressure from 0 psi to 150 psi in 10 psi increments, with numeric markings at 0, 50, 100 and 150 psi. It comes with mounting hardware and can be used as a replacement part.

Using this air gauge is easy. First, find a suitable place to mount it with the included hardware. Then, connect the dual inputs according to your needs. You can clearly see the air pressure on the white dial face with black bezel. When using, make sure the pressure doesn't exceed 150 psi. For maintenance, keep it clean and dry. If there is any problem, you can consider replacing it as it is a replacement - part.