Test insulation resistance up to 4000M? at 125V, 250V, 500V, and 1000V DC Test and Lock buttons for simple insulation testing Warning alarm and high voltage icon for detection of voltage Measures up to 1000V AC/DC, low resistance, and continuity Automatic ranging True Root Mean Square (TRMS) technology for increased accuracy Backlit display with bar graph, Auto-power off, High Voltage, Max/Min, and Hold icons Low battery indicator with easily replaceable battery and fuse Built-in stand and optional magnetic hanger for hands free operation Test verification of conformity to EN61557-1,-2,-4 CAT IV 600V and CAT III 1000V safety rating Includes Right Angle Test Leads and Heavy-Duty Alligator Clip Test Leads