Sporster
Has ALL the features you could want in a shrader valve tire guage.
JACO guages appear to be very accurate as tested against my other bourdon tube guage. Has all the features you could want in a high quality guage. Accuracy readability to 1 lb increments, rubberized shell, 360-degree swivel chuck, hold reading on the dial with a pressure reset/bleed down button, bonus: it glows in the dark, AND it only requires 1 hand. No more fumbling with hoses. NOTE: It won't work on a bicycle presta valve. For that they make an outstanding guage that seals and prevents air loss on high pressure tires. A must have. I own both. This is definitely a guage you'll have for life.