The Extech CT20 is a versatile and user-friendly clamp meter designed for electrical current measurement in various applications. This handheld instrument combines accuracy, convenience, and a range of features, making it an essential tool for electricians, technicians, and DIY enthusiasts.

The Extech CT20 features a built-in clamp jaw that allows for non-invasive current measurements. It can measure AC current up to a certain range, typically in amperes (A), by clamping around the conductor or cable being tested. This eliminates the need for interrupting the circuit or making direct electrical connections, ensuring safe and efficient measurements.

The instrument also includes other essential measurement functions. It may measure AC/DC voltage, resistance, continuity, and diode test, providing versatility and convenience in troubleshooting electrical systems. The clear LCD display provides easy-to-read measurements, along with additional features such as data hold and auto-ranging for enhanced functionality.

The Extech CT20 is designed with user convenience in mind. It features a compact and ergonomic design, making it comfortable to hold and operate. The clamp jaws are typically large enough to accommodate various conductor sizes, allowing for flexibility in different electrical applications.

The instrument is powered by batteries, ensuring portability and ease of use in different locations. It may also include additional features such as a built-in flashlight for illuminating dark areas during measurements or a backlit display for improved visibility in low-light conditions.

The Extech CT20 is suitable for a wide range of applications, including residential, commercial, and industrial electrical systems. It is particularly useful in troubleshooting electrical faults, verifying current loads, and performing routine electrical maintenance tasks.