"Large, backlit LCD with analog bar graph and digital display - Three output voltages for insulation resistance testing: 250V, 500V, 1000V - Insulation resistance testing up to 4000 MOhm; switches automatically to voltage measurement when voltage is greater than 30V AC or 30V DC - AC\/DC voltage measurement up to 600V - Lo-Ohms function for testing connections - Last reading memory display - Four C-cell batteries for up to 5,000 tests per EN61557-2, with battery-life indicator and auto shut-off - Autodischarge of capacitive voltage - Heavy duty test leads, alligator clips and test probes - Rugged, splash-proof case with impact-absorbing holster"