UNI-T UT501A/UT502A Insulation Resistance Tester – Premium Megohmmeter for Professionals

High-Voltage Precision
Accurate insulation resistance measurement up to 1000V (UT501A) or 2500V (UT502A), ensuring reliable testing for electrical safety compliance.
Durable & Shock-Resistant
Heavy-duty ABS housing with reinforced corners protects against drops and harsh job site conditions.
Wide Measurement Range
Tests from 0.1MΩ to 2.5TΩ, ideal for electricians, HVAC technicians, and industrial maintenance teams.
Auto-Discharge Safety
Built-in capacitor discharge function prevents electric shocks after high-voltage testing.
Clear LCD Backlight
Large digital display with backlight ensures readability in low-light environments like substations or construction sites.
Long Battery Life
Powered by 8xAA batteries (included) for extended field use without frequent replacements.
Versatile Applications
Perfect for inspecting wiring, motors, transformers, and solar panel installations—meets IEC/EN61557 standards.
Global Wholesale Advantage
Direct bulk pricing with worldwide shipping—no middlemen, just unbeatable value for trade professionals.