Digital Insulation Resistance Tester Megohmmeter Auto Range 250V-1500V

Key features

• Multi-Voltage Insulation Testing: This digital megohmmeter offers 250V, 500V, 1000V and 1500V selectable test voltages, measuring insulation resistance from 1MΩ up to 30GΩ. Accuracy is ±5.0% rdg + 5 digits for 1MΩ-20GΩ, and ±10.0% rdg + 5 digits for 20GΩ-30GΩ. Built-in auto-range function for hassle-free operation. Ideal for transformers, instrument transformers, motors, cables, switches and electrical appliances.
• True RMS AC/DC Measurement: Beyond insulation testing, this unit measures DC voltage (up to 1000V) and AC true RMS voltage (up to 750V), plus resistance (up to 40MΩ). Built-in continuity buzzer sounds when resistance is below 50Ω for quick circuit verification. One compact tool covers multiple electrical testing needs.
• Advanced Safety Features：HV indicator light provides clear visual warning when high voltage is active. Robust back EMF protection safeguards the instrument from inductive load damage. Double insulation design complies with IEC-1010 safety standards. Short-circuit output current is approximately 1mA with strong load capacity. Auto power-off after 15 minutes conserves battery.
• High-Visibility VA Color Screen: 4000-count VA color screen paired with 41-segment analog bar graph (display size: 71×53mm, character height 24mm) delivers real-time visual feedback. Data hold locks measurements for easy documentation. Over-range "OL" indication and low battery alert prevent errors and unexpected shutdowns.
• Durable & Portable Design: Flip cover with shockproof, dustproof, and moisture-proof construction suits outdoor working environments. Battery-powered (6×AA) eliminates hand-cranking. Compact dimensions 185×122×68mm, weight approx. 600g

PR-67A — Digital Insulation Resistance Tester The 67A is a professional-grade auto-ranging digital insulation resistance tester (megohmmeter) that combines high-voltage insulation testing, AC/DC voltage measurement, and resistance testing in one compact handheld device. Unlike traditional hand-cranked megohmmeters, the 67A features battery-powered operation, a VA color display with analog bar graph, and comprehensive safety protection — making insulation testing faster, safer, and more convenient for electrical professionals. What You Can Measure Insulation Resistance: 1MΩ to 30GΩ, 4 selectable test voltages (250V/500V/1000V/1500V). Accuracy: ±5.0% rdg + 5 digits (1MΩ-20GΩ), ±10.0% rdg + 5 digits (20GΩ-30GΩ). DC Voltage: Up to 1000V, accuracy ±0.5% to ±0.8% rdg + 2 digits. AC True RMS Voltage: Up to 750V (40Hz-1kHz), accuracy ±1.0% to ±1.5% rdg + 3 digits. Resistance: Up to 40MΩ, accuracy ±1.0% to ±1.5% rdg. Continuity Buzzer: Audible alert when resistance is below 50Ω for quick circuit verification. Key Features 4 Selectable Test Voltages & Auto-Ranging — Choose from 250V, 500V, 1000V, or 1500V output. Auto-range simplifies operation across transformers, motors, cables, and e

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