The Sanwa DCL31DR is a compact DC/AC digital clamp meter with an RMS response feature.The DCL31DR can measure a current of up to 400 Amperes in both AC and DC modes with an accuracy of 3% when in AC mode. The DCL31DR offers many features such as a 6000-count large LCD display with a backlight, a Data Hold function for pausing the measurement on screen, a Peak Hold function for detecting the peak value of AC current to pausing it, and a Zero setting feature that allows users to remove DC offsets before measuring DC currents.This device allows you to measure the current range specified in IEC61010-1 CAT. III 300V and is suitable for measuring the current of low-voltage power lines and electrical appliances. The clamp sensor in the DCL31DR has a maximum input current rating of 320 Amperes AC/DC and has a maximum input protection rating of 450 Amperes AC/DC.Meter includes carry pouch, strap and instruction manual.