3-pole Fall-of-Potential earth testing for basic measurements 2-pole resistance measurements for added versatility Easily capture values with single-button operation Ensure accurate measurements with automatic ‘noise’ voltage detection Hazardous voltage warning offers increased user protection Clearly read and record data with a large, backlit display Rugged holster and design for tough work environments Portable size allows for easy transportation Instantly be alerted to measurements outside of your set limit, when you use the adjustable limit setting 600 V Cat II > Each Unit Includes Fluke 1621 Tester 2 cable reels with wire (1-50m, 1-25m) 3 earth ground stakes 1 Test lead (red and black 2m) 2 Alligator Clips Batteries Users manual Hard carrying case