The ARB ARB601 is a digital tire inflator and gauge built into one tool. It reads 0-200 PSI on a large backlit LCD and is accurate to plus or minus 1 PSI across the 25-75 PSI band most rigs air down and up within. A thumb-operated trigger inflates; a bleed button drops pressure. Max supply pressure is 350 PSI, so it runs off any 4WD onboard compressor or shop air line.
The 23.5 in dual-swivel PVC-coated braided hose and clip-on chuck let you reach all four valves without unhooking and re-hooking. The blue backlight means you can read exact pressures at the trailhead after dark. It runs on 2 AAA batteries (supplied) with auto on/off and roughly 200 hours of runtime, so a set lasts a long time between swaps.
This is the read-and-set tool, not the air source. Pair it with your compressor or tank: connect the inlet, clip the chuck on the valve, and dial in your pressure. Body measures 8.2 x 2.95 x 2.95 in without the hose.
