The UNI‑T UT 133A is a palm-size, True RMS digital multimeter delivered in a rugged, 2 m drop-proof housing. It accurately measures 600 V AC/DC, 10 A AC/DC current, resistance, capacitance, frequency, temperature (–40 °C to 1000 °C), and provides non-contact voltage detection (NCV), diode test, and continuity buzzer—all on a clear 6000-count auto-ranging display