The MESTEK DM100A is a 10000-count smart digital multimeter designed for accurate electrical measurements and advanced troubleshooting applications. Featuring automatic ranging, True RMS measurement, and non-contact voltage detection, it provides reliable readings for AC/DC voltage, current, resistance, capacitance, and frequency testing. The large backlit display, integrated flashlight, and intelligent measurement functions enhance usability in both laboratory and field environments. With live wire detection, diode and continuity testing, and fuse burn alerts, the DM100A is a versatile tool for electronics, electrical maintenance, and professional diagnostics.