UNI-T UT522 Digital Earth Tester

is a professional-grade instrument designed for precise earth resistance testing and grounding system evaluation. Engineers, electricians, and field technicians rely on the UNI-T UT522 Digital Earth Tester to ensure proper grounding of electrical installations, eliminating the risk of electric shock, equipment failure, or lightning-related hazards. Designed for industrial, commercial, and construction environments, this device ensures accurate measurements in various soil conditions while maintaining user safety and efficiency.

Key Features

• • Measures earth resistance using 3-pole and 2-pole methods for versatile testing in different grounding scenarios.

    • Equipped with a large backlit LCD display that ensures clear visibility in outdoor or low-light environments.

      • Features strong noise filtering technology that reduces field interference, resulting in stable and accurate readings.

        • Auto power-off function helps extend battery life during long field operations.

          • Includes overvoltage protection to safeguard users during live circuit testing.

Advantages

• High-accuracy measurements, even in difficult soil conditions

• Compact and lightweight design for easy transportation

• Suitable for industrial maintenance, grounding inspections, and construction projects

• Easy operation — ideal for field engineers and maintenance technicians

Applications

• Ground resistance verification in electrical panels

• Installation of lightning protection and grounding rods

• Soil testing for power distribution systems

• Safety inspections for telecom towers and substations

Data Sheet (Specifications)