These simple, durable, accurate gauges use magnetic and eddy current principles to measure coating thickness on both ferrous and non-ferrous metals, quickly and accurately. All stored measurements are date and time stamped and the statistics mode continually displays and updates average, standard deviation, min/max thickness, and number of readings while measuring. USB port provides fast, simple connection to a PC and continuous power. Weatherproof gauges are solvent, acid, oil, water, and dust resistant. The one-handed menu navigation makes set up and operation simple, and the flip display enables right-side-up viewing.