Amprobe TELARIS EARTH-TEST Earth Resistance Tester Ground resistance meter to measure earth ground resistance to evaluate system safety Automatic and manual frequency selection for noise reduction Selectable 25 or 50V AC test voltage with 12mA test current Measures earth resistance from 0 to 1,999 ohms Safety rated to European Standard EN 61010-1 Category III 300V Earth resistance measurement 2/3 and 4-pole Specific earth resistance measurement in compliance with the Wenner principle Clear and large LCD providing the user with an optimum visual indication of both test values and limits Monitoring and display of auxiliary earth and probe resistances Overvoltage category: CAT III / 300 V