Fluke Digital Multimeter FLU28-II Product Description Now there’s one intrinsically safe digital multimeter (DMM) you can use in IIC (gas), in Zone 1and 2 and IIIC (dust), Zone 21 and 22. Whether you work in petroleum, chemical, or pharmaceutical environments, all the test and troubleshooting power you needs packed into the most rugged intrinsically safe (IS) DMM Fluke has ever built. The Fluke 28 II Ex is also waterproof, dust-proof and drop-proof. You'll be equipped to handle any situation, inside and outside of hazardous zones, without compromising compliance or measurement performance. Features A completely sealed, IP67 rated case Withstands drops up to 10 ft or 3 m (with holster) Meets IEC Overvoltage Electrical Safety Standard No. 61010-1:2001 Reversible holster for added protection of the display when not in use Auto and manual ranging for maximum flexibility