The Extech 380947 is a compact, True RMS mini clamp meter designed for accurate measurement of low to medium AC/DC currents in tight or crowded spaces. Featuring four selectable AC/DC current ranges (up to 400A), a 4000-count LCD with analog bargraph, and one-touch Auto Zero for DC, it’s ideal for energy audits, industrial maintenance, and electronics troubleshooting. Includes Data Hold, Max/Min, and optional AC Line Separator for safe plug-in cable measurements.