Uni-T UT-278A Clamp Meter for Earth Resistance & Leakage Testing

The UT-278A Clamp Meter gives you confident, precise readings whenever you need reliable electrical testing. This clamp meter helps you measure earth resistance and leakage current with accuracy and ease.

Clamp Meter – Benefits for You

✅ Quickly identify resistance and leakage issues so you can troubleshoot electrical systems with confidence.

✅ Auto-ranging functionality adjusts automatically, saving you time and reducing the chance of incorrect settings.

✅ A bright backlit screen keeps your readings clear and visible so you can work comfortably in dim or shadowed spaces.

✅ Smart power management helps extend battery life, giving you longer operating time when you're on the job.

✅ Built-in data connectivity lets you log information easily, helping you track and analyze measurements over time.

⚡ Streamline your inspections and stay focused on accurate diagnostics with a tool built for professionals.

This clamp meter combines ergonomic comfort with dependable performance, making it an excellent companion for fieldwork, routine inspections, or quick troubleshooting tasks. Its intuitive layout lets you move from one measurement to the next without unnecessary steps or complicated menus.

Designed to capture DC current without direct contact, the device provides a safe way to check current flow in a wide range of applications. It also delivers detailed AC current measurements, covering everything from small leakage values to larger operational loads.

For resistance testing, the meter includes multiple measurement ranges, ensuring you can pinpoint grounding performance across various environments. Each range is engineered for stability and accuracy, helping you catch issues early and maintain safety standards.

Automatic range switching removes guesswork and keeps the workflow smooth, while both RS‑232 and USB interfaces offer convenient ways to transfer data for documentation or analysis.

Additional features such as hold mode, a peak capture function, and a rugged physical design make the meter suitable for demanding work conditions. A protective carrying case is included, offering easy transport and storage.

The unit operates on four AA batteries, has a solid build weighing just over one kilogram, and features compact dimensions for comfortable handheld use. Helpful resources such as a data sheet, user manual, and additional documentation are available for deeper guidance.

Take your testing accuracy to the next level—equip yourself with this Clamp Meter today.