



The Uni-T UT204A clamp meter is an excellent choice for electricians and DIY enthusiasts seeking a portable, easy-to-use tool for everyday electrical measurements. While it has some limitations in jaw size and advanced features, its accuracy and versatility make it a solid value option for most standard applications.
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How this product performed across our four scoring axes during in-house benchmarking.
A quick visual of how this clamp meter compares to the category average across four lab tests.
The Uni-T UT204A clamp meter is a versatile and reliable measuring tool designed for electricians and technicians who require accurate current and voltage measurements in a compact device. Featuring a robust clamp jaw with a 30mm diameter, it allows easy measurement of AC current up to 400A without the need to disconnect wiring. Its compact design and lightweight body make it comfortable for prolonged use in tight or hard-to-reach spaces.
Equipped with a backlit LCD screen, the UT204A ensures clear readability in low-light conditions, enhancing usability on job sites. It supports multiple measurement modes including AC/DC voltage, resistance, continuity, and diode testing, making it a multifunctional instrument for various electrical diagnostics. The meter also includes a data hold function, allowing users to freeze readings for convenience during testing.
While it offers good value and performance for professionals and hobbyists alike, the device operates on two AAA batteries and features an auto power-off function to conserve energy. Its build quality is solid, though the clamp jaw size limits it to smaller conductors compared to larger clamp meters. Overall, the Uni-T UT204A is a practical and affordable tool that balances functionality with portability for everyday electrical measurement tasks.