The AstroAI Digital Multimeter AM33D 2000 Counts AC/DC Voltage Current Tester Meter is a handheld device designed for measuring various electrical parameters. With a measurement category of CAT II, this multimeter has a DC voltage range of 600mV and a current range of 60mA/600mA. It also offers functions for testing AC current, capacitance, and diode functionality, with an AC voltage range of 600mV. The meter features auto power off, auto-ranging, data hold, a clamp for easy connection, and true RMS capability. The display is digital, making it easy to read the results with 2000 counts of precision.