The Fluke FL-150 EX line of digital multimeters is designed specifically for use in hazardous locations such as petrochemical and gas processing plants, offshore platforms, refineries, as well as Class I, Division 1/Zone 1 and Zone 2 hazardous locations. These multimeters all feature large, easy to read displays, large color-coded buttons, and bright LED lights to aid in working in dark locations. They are all built with an increased safety rating of 600V, CAT III and 1000V, CAT IV, which allows these meters to be used in more hazardous environments than standard digital multimeters. The FL-150 EX is also capable of measuring up to 10A AC/DC current, 40 MOhm resistance and 500V AC/DC voltage. These multimeters are also all equipped with residual current trip measurement and DC low pass filter for greater accuracy.