The CMP-200 is an Ammeter clamp specially designed for leakage current measurement. This device has 3 measuring ranges of 200mA, 2A, and 200A and 3 1/2-digit LCD display with white LED backlight. The internal diameter clamp measures approximately 30mm. This device has a data hold function for storing of measured values, a max function. This ammeter clamp automatically turns off after 15 minutes.