The Rigol M300 Series is a compact, entry-to-mid-range measurement instrument family designed for general-purpose testing, education, service labs, and field diagnostics. Depending on the exact model suffix, the M300 series includes oscilloscopes or digital multimeters, all built with easy-to-use interfaces, reliable measurement performance, and solid accuracy at an affordable level. It is well suited for electronics debugging, routine validation, and quick measurements in development and repair environments..