The DCM300E earth leakage clamp meter has been designed primarily to check earth leakage currents with a dedicated 30 mA range providing resolution down to 10 µA.

The capabilities of the DCM300E extend to measuring currents of up to 300 A AC, making it a highly versatile instrument capable of taking current measurements in a wide variety of situations and applications. For example, a typical application for the DCM300E would be the measurement of earth leakage current in a circuit where the RCD or GFCI repeatedly trips out. The measured result will quickly identify whether an excessive leakage current is causing the RCD or GFCI to trip, or if the RCD or GFCI itself is faulty.

The DCM300E has 4 ranges: 30 mA, 300 mA, 30 A, and 300 A with a best resolution of 0.01 mA. The analogue-style bar graph of the DCM300E is very useful when monitoring changes, allowing you to easily interpret the rapidly changing graph rather than the digital display. Other key functions include the “Data Hold” feature, which helps you record measurements in areas that are difficult to access or are in poor lighting, and the "automatic power off" feature, which extends the battery life.

This clamp meter was also designed with your protection in mind, exceeding the latest safety design standards (IEC1010-2-32 and EMC requirements) and equipped with extra safety features that provide you with a safer working environment.