Topeak's Shuttle Gauge Electronic is aimed at the latter crowd, that has a electronic readout effective at measuring tire (or shock) pressure all the way down to .5 psi. A swiveling head makes it simple to read the LCD screen, and there is a bleed valve over the back facet http://loanslikevergecredit05948.blogoscience.com/10549637/5-easy-facts-about-topeak-smartgauge-d2-review-described