The FUZRR ES2010E+ Smart Double Clamp Phase AV Meter is a digital electrical measuring instrument designed for measuring AC voltage, current, phase angle, and frequency. It is suitable for electrical inspection, maintenance, load analysis, and transformer testing applications. The device utilizes smart measurement technology to improve measurement accuracy and reliability. It supports low-voltage electrical systems and industrial maintenance work, and includes Hold, Backlight, Auto Power Off, and rechargeable battery functions.