Features: Voltmeter ammeter voltage range is AC 50–500 V; current range is AC 1–140 A. Displays voltage and current simultaneously in different colors: red for voltage, green for current. Powered by the circuit being measured; no external power source required. Designed for use with mains power, three-phase systems, generators, and voltage regulators operating with sinusoidal alternating current. Not suitable for non-sinusoidal waveforms, high-frequency applications, or other non-standard AC sources. Specifications: Material: ABS Voltage Measuring Range: AC 50–500 V Current Measuring Range: AC 1–140 A Cable Length: Approx. 18 cm Dimensions: Approx. 45 × 26 × 14.5 mm Note: Allow for a 1 mm measurement tolerance due to manual measurement. Color representation may vary slightly depending on monitor settings. Package Includes: 1 × Digital Voltmeter Ammeter