Insulation Tester Megohmmeter Digital Multimeter 20GΩ 1000V Auto-Ranging

Key features

• Multi-Voltage Insulation TestingThis digital megohmmeter offers selectable test voltages of 50V, 100V, 250V, 500V, and 1000V, with insulation resistance measurement up to 20GΩ. Ideal for motors, cables, transformers, and EV battery packs — a true insulation resistance tester for industrial and field use.
• Professional PI/DAR AnalysisPerform Polarization Index (PI) and Dielectric Absorption Ratio (DAR) tests to detect moisture and aging. The meter auto-calculates PI (10min/1min) and DAR (60s/30s) ratios, providing critical data for IEEE 43 compliance — a feature absent in basic megohmmeters.
• Full-Featured MultimeterBeyond insulation, this digital multimeter measures AC/DC voltage (600V), resistance (60MΩ), capacitance (100mF), diode, and continuity with buzzer. Auto‑ranging and data hold simplify operation, making it a versatile electrical tester for daily diagnostics.
• Rechargeable & Field-ReadyPowered by two Li‑ion batteries with charging adapter. The GUARD (G) terminal suppresses surface leakage on cables and transformers, ensuring accurate insulation readings. Shockproof case and stand make it a portable insulation tester for job sites.
• Built for Professional SafetyRated CAT III 600V with high‑voltage warning and overload protection. Auto‑shutdown after 15 minutes preserves battery. Built for safety and durability, this insulation resistance tester is trusted by professionals for motor, HVAC, and EV diagnostics.

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