The DeVilbiss digital gauge is very simple to use. The pressure display shuts off automatically after 45 seconds to conserve battery life. Simply press the On button (>) to reactivate the display.
To see if calibration is needed, turn the gauge on when it is not pressurized. If it reads 0.0, there is no need to calibrate. On the infrequent occasions where calibration is required, follow the simple instructions on the gauge or the package.
Customers who bought this product also were interested in:
This site was designed and produced solely by Pelican Parts. Pelican Parts is not associated with Porsche Cars North America in any manner, except for a mutual appreciation and love of the cars. All pictures and references to the Porsche name, and the car names and shapes are for restoration reference only, and do not imply any association with Porsche. Pelican Parts is not responsible for any typographical errors contained within the site. Information and technical articles within this website are for reference only. Consult authorized factory manuals when performing repair procedures. By entering this site, you agree to hold Pelican Parts free from any liability arising out of the use of any information contained within.