Analog Insulation Tester
The Triplett Model MG420 Analog Insulation Tester tests Insulation Resistance to 400MΩ using three test voltages (250V, 500V, and 1000V), and also measures AC Voltage and Low Resistance. Additional features include a Lock Power function for hands-free operation, backlit multiband analog display with zero adjust, live circuit LED indicator, plus built-in battery check. CAT IV 600V safety category. 1-year warranty.