Digital Insulation Resistance Tester – 50V to 1000V Megohmmeter (0.1MΩ to 10GΩ)

This digital insulation resistance tester is a specialised instrument for measuring insulation resistance in electrical equipment and installations. It is widely used in maintenance, commissioning, fault diagnosis, and safety verification of electrical systems across industrial, commercial, and utility environments.

With a wide measurement range from 0.1MΩ to 10GΩ, the tester supports selectable output test voltages (50V, 100V, 250V, 500V, and 1000V), allowing users to match the test voltage to the equipment under inspection. This makes it suitable for both low-voltage control circuits and high-voltage electrical assets.

The instrument features automatic residual voltage discharge, reducing risk to users after testing, along with high-voltage indication and low-battery warning for safe operation. A digital display with bar graph provides fast, easy-to-read results even in field environments.

Battery-powered operation ensures portability and convenience, making this tester ideal for field technicians, electricians, electrical contractors, and maintenance engineers.

Key Features

• Insulation resistance measurement from 0.1MΩ to 10GΩ

• Selectable test voltages: 50V / 100V / 250V / 500V / 1000V

• Suitable for motors, transformers, cables, switchgear, and appliances

• Automatic discharge of test voltage

• Clear digital display with bar graph

• High-voltage indication during testing

• Low battery voltage indication

• Battery-powered for portable field use

• Compact, durable design

Typical Applications

• Electric motors and generators

• Power transformers and inductors

• Power and control cables

• Switchgear and distribution boards

• Electrical appliances and equipment

• Preventive maintenance and safety testing

• Electrical installation commissioning