Digital Insulation Tester 250V/500V/1000V DC Voltage/Resistance/Continuity Test
Anti-Shock Circuit: Protection up to 1000V. Continuity Buzzer: <50Ω with audible alert. Test Duration: 1 minute per 1000V (IEEE 43 standard). Solar Arrays >500MΩ 1000V. Do NOT Use On: Energized circuits or >1000V systems.