Earthing or grounding of electrical equipment is essential to maintain safety, protect lives, as well as prevent damage to equipment. The Hioki FT6031-90 is a IP67 dustproof and waterproof two-pole or three-pole ground resistance tester with large, easy-to-read display, highly sensitive earthing rods, and innovative cable winder that significantly reduces the amount of time needed to complete earth resistance tests. The FT6031-90 includes the Z3210 wireless adapter that allows the use of Gennect Cross, a complimentary app designed specifically for use with Hioki measuring instruments, which lets you check and manage measurement results and create reports. CAT IV 100 V, CAT III 150 V, CAT II 300 V.