6" iGaging EZcal Digital Caliper This caliper has all the features you desire including zero setting, auto-off, EZ View large display panel, thumb wheel, hardened stainless steel body, IP54 water-resistance rating and it uses a long-lasting lithium battery. It even comes in a protective case and a spare battery.
Use this rugged tool to measure inside or outside diameters, drill, and router bit sizes, the thickness of wood, width of a dado, and depth of a rabbet or hole. Measures in increments of .0005", fractions in 1/128" reduced to smallest denominator and .01mm.
Large, Single Number Readout Display Screen. Unlike analog calipers and protractors that rely on engraved scales only, the readout window on iGaging digital tools displays a large, easy-to-read number. It eliminates the parallax problem where viewing, say, the scale of a ruler that can be misleading if your line of sight isn't dead on. With a large digital display, tired or aging eyes or imperfect lighting is no longer an issue.
Watch an independent review on YouTube.