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The FNIRSI S1 Digital Multimeter is a smart and reliable tool for measuring AC/DC voltage, resistance, capacitance, and temperature. This advanced multimeter also features TRMS for accurate readings, non-contact voltage detection (NCV), and live wire identification. Whether you're an engineer, technician, or DIY user, the FNIRSI S1 Digital Multimeter offers the precision and features you need for professional electrical diagnostics.