Features Versatile Measurement: Measure voltage, current, and frequency with one device, providing comprehensive monitoring for your electrical systems. Clear LED Display: Large square 3-digit LED display ensures easy and accurate reading of measurements, enhancing user convenience. Wide Voltage Range: Suitable for single-phase AC systems, covering a voltage range from 60V to 500V, making it compatible with various applications. Easy Operation: Simply pass a load cable through the current transformer for convenient and hassle-free use, saving time during measurements. Portable and Stylish: Compact and lightweight design makes it easy to carry, with five vibrant color options to suit your preferences. 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