Features Versatile Measurement: Measure voltage, current, and frequency with one device, providing comprehensive electrical data for your convenience. Clear LED Display: Large square LED 3-digit display offers a clear and easy-to-read visual of the electrical measurements, ensuring accurate readings. Wide Voltage Range: Suitable for single-phase AC with a wide voltage range from 60V to 500V, catering to various electrical systems and applications. Easy Operation: Simply pass a load cable through the current transformer for convenient and hassle-free use, saving you time and effort. Portable and Stylish: Compact size makes it easy to carry, and the availability of five colors allows you to choose according to your style preference. Specification: Item Type: Voltage current frequency meter Model: AD112-22 FVAH Color: Red, Green, Yellow, Blue, White (optional) Voltage Measurement: AC60-500V Current Measurement: 0-100A Frequency Measurement: 20-75 Hz Error: ± 2% Refreshing Speed: About 200ms/time Ambient Temperature: 0-50 (℃) Package List: 1 x Meter Package List 1 x Meter