Features Wide Measurement Range: Test 3 phase voltage with AC 400V wide measurement range for accurate readings, ensuring comprehensive voltage testing capabilities. Clear Digital Display: The digital display provides high accuracy for clear viewing of data, simplifying the working process and enhancing the user experience. Versatile Application: Ideal for automation, substation, power distribution, and electric energy measurement, offering extensive utility in various settings. Easy Installation: Supports both 3 wire and 4 wire wiring, with a lightweight and small size for simple and convenient installation. Enhanced Durability: Features flame retardant ABS casing, premium terminals, protective back cover, and silicone buttons, ensuring a durable and reliable design for long-term use. Specification: Item Type: 3 Phase Voltmeter Product Model: YG194U 3XY Product Colour: White Product Material: Flame retardant ABS material, silicone. Voltage Range: AC400V Power Input: AC220V Accuracy: ±0.5% Wiring: 3 phase 3 wire or 4 wire. Package List: 1 x 3 Phase Voltmeter Package List 1 x 3 Phase Voltmeter