The FNIRSI MC-40 Clamp Meter Digital Multimeter is a high-performance electrical testing instrument designed for electricians, engineers, technicians, and maintenance professionals. Featuring True RMS technology, automatic ranging, and 600A AC current measurement, it delivers fast, accurate, and reliable results for a wide range of electrical applications. The MC-40 supports AC/DC voltage measurement, AC current measurement, resistance testing, diode testing, continuity testing, and Non-Contact Voltage (NCV) detection. Its 26mm clamp jaw allows safe current measurement without disconnecting wires, making it ideal for industrial maintenance, home electrical inspections, and automotive diagnostics. Built with intelligent anti-burn protection, a bright backlit LCD display, flashlight, data hold function, and automatic power-off, the FNIRSI MC-40 provides both safety and convenience for everyday electrical testing.