UNI-T UT620A Digital Micro Ohm Meter

is a professional-grade precision instrument designed for engineers, maintenance technicians, and laboratories that require extremely accurate low-resistance measurements. provides high-resolution readings in micro-ohms, enabling precise evaluation of contact resistance, busbars, motors, transformers, and welding joints. Unlike standard multimeters that are not capable of reading ultra-low resistance values accurately, this instrument utilizes a four-wire Kelvin measurement method, eliminating lead and contact resistance to ensure true measurement results.

Key Features

• Ultra-Low Resistance Measurement

  • Measures resistance as low as micro-ohms with exceptional accuracy.

• Four-Wire Kelvin Measurement

  • Eliminates errors caused by lead resistance, providing trustworthy readings.

• Large LCD Display

  • Clear, easy-to-read digits improve visibility during field or bench measurements.

• Data Storage & Logging

  • Stores test results for later comparison and reporting.

• High-Accuracy Output

  • Offers stable readings ideal for motors, transformers, and grounding resistance tests.

Advantages of Using UNI-T UT620A

• Detects loose or corroded connections

• Ideal for production lines, quality inspections, and R&D environments

• Lightweight and portable for on-site maintenance

• Reduces troubleshooting time and ensures equipment reliability

Applications

• Electrical panel & breaker contacts

• Transformer and motor winding tests

• Grounding resistance evaluation

• Railway and industrial power systems

• High-current connector inspection

Data Sheet (Specifications)