Digital Insulation Resistance Tester (Megohmmeter) – 1MΩ to 200GΩ, Up to 1000V

This digital insulation resistance tester is a specialised instrument used to evaluate the condition and safety of electrical insulation in industrial, commercial, and utility environments. It is suitable for maintenance, commissioning, fault diagnosis, and verification of insulation performance in both low- and high-voltage electrical systems.

With a wide insulation resistance measurement range from 1MΩ up to 200GΩ, the tester is ideal for large electrical assets such as power transformers, generators, high-voltage motors, power cables, arresters, and capacitors. High test voltages ensure reliable detection of insulation degradation, moisture ingress, and ageing effects.

The instrument incorporates built-in safety features, including limited short-circuit current, internal insulation protection, and high-voltage withstand capability. A clear digital display provides easy-to-read results in field and workshop conditions, while low-battery indication ensures reliable operation during extended use.

Battery-powered operation allows portable testing in substations, plant rooms, workshops, and remote locations.

Key Features

• Insulation resistance measurement from 1MΩ to 200GΩ

• Designed for high-voltage insulation testing applications

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

• High test voltage capability with controlled output

• Digital display for clear and accurate readings

• Low battery voltage indication

• Limited short-circuit current for user safety

• Portable, battery-powered operation

• Rugged design for field and industrial use

Typical Applications

• Power transformers and generators

• High-voltage electric motors

• Power and control cables

• Surge arresters and capacitors

• Switchgear and electrical panels

• Preventive maintenance and safety testing

• Electrical commissioning and inspections