The Sanwa MG102 Digital Insulation Tester is a professional-grade testing instrument built to ensure the safety and reliability of electrical systems.

Designed for electricians, maintenance professionals, and industrial users, this instrument is a DC insulation resistance tester designed to measure insulation resistance of electric lines and electric equipment in the range of the CAT.Ⅳ 300V and CAT.Ⅲ 600V, making it suitable for a wide range of applications from power line inspections to motor and cable testing.

Featuring a large, backlit LCD for easy readability in any environment, the MG102 includes essential safety functions such as live circuit detection that prevents testing on energized circuits, automatic voltage discharge for user protection after testing, and a convenient data hold function for reading retention. Its ergonomic design with illuminated controls provides user comfort and operational clarity even in low-light conditions.

The MG102 offers multiple resistance ranges up to 4000 MΩ, an audible continuity buzzer, and a clear comparator function to quickly assess pass/fail results based on preset thresholds. Compliant with IEC61010 CAT III 600 V safety standards, this tester combines accuracy, durability, and safety to meet the demanding needs of fieldwork and industrial environments.

Whether performing routine electrical maintenance or critical safety testing, the Sanwa MG102 Digital Insulation Tester is an essential tool to diagnose insulation integrity confidently and ensure electrical systems are protected from potential faults or hazards.

Key Features:

• Selectable test voltages: 50 V, 100 V, 125 V, 250 V, 500 V, 1000 V

• Insulation resistance measurement up to 4000 MΩ

• Large, backlit LCD and illuminated button controls for ease of use

• Live circuit detection prevents dangerous testing on energized circuits

• Automatic voltage discharge and data hold for enhanced safety and convenience

• Audible continuity buzzer and clear pass/fail comparator function

• Conforms to IEC61010 CAT III 600 V safety standards

• Pocket-sized, ergonomic design suitable for field and lab use

This instrument is an ideal choice for electrical contractors, maintenance teams, and industrial safety inspectors looking for reliable and safe insulation testing equipment.

Specifications