Digital Megohmmeter Insulation Resistance Tester for Voltage (500V /1000V /2500V /5000V) & Resistance Measurement (1MΩ~200GΩ), Backlight Display & Data Hold for High-Voltage Cable /Motor Testing

Features

• Advanced Insulation Resistance TesterThe megohmmeter with auto-ranging from 0.1M to 200G, delivering 3%~10% accuracy 5 digits. Built-in shield terminal (COM) eliminates surface leakage errors for stable, reliable readings essential for electric motor testing, transformer diagnostics, and high-voltage cable insulation evaluation
• S6 Selectable Output Voltages 100V/250V/500V/1000V/2500V/5000V cover everything from low-voltage appliances to heavy-duty industrial gear. Strong load capacity with approx. 1mA short-circuit output current ensures accurate testing even on capacitive loads. Comes with a non-slip, impact-resistant protective sleeve for rugged job sites and field maintenance
• Safety and ReliabilityEngineered to IEC-1010 double insulation standards with Overvoltage Category II safety rating. Built-in high-voltage LED warning flashes during active output, and the TEST/STOP button instantly halts voltage followed by automatic discharge of capacitive residual charge for operator protection. For readings below 5M at any rated voltage, limit test duration to 10 seconds per safety guidelines
• Electric Insulativity CheckThis megohm meter doubles as an AC true-RMS voltmeter (1V750V, 40Hz400Hz) for quick line checks. Backlit LCD with 1999-count display and data hold function makes dim-site reading easy. Perfect for inspecting switchgear, motors, cables, and electrical panels in commercial, industrial, and HVAC applications
• Quality Assurance GC-6688B has 1999 Counts Megameter is tailored for measuring insulation resistance in a variety of electrical equipment and insulating materials, such as transformers, motors, cables, switches, and appliances. Backed by 1-year quality assurance a reliable partner for electricians, facility maintenance crews, and field service technicians