Description Six-in-One Function: The digital meter displays a total of 6 parameters, including Voltage: 40-300V, Current: 0-100A, Power: 0-30000W, Energy: 0-99999kWh, Frequency: 45-65Hz, and Power Factor: 0-1PF. More Accurate: The internal use of a high-precision chip is more accurate and sensitive. The shell is made of high-strength, flame-retardant ABS material, ensuring safety and making it more durable. More Intuitive: The high-resolution backlit LCD color screen makes it easy to read data. 178 no dead angles, sufficient brightness at night, and it will not be difficult to read during the day due to reflections. Wide Range of Applications: This digital meter is suitable for most scenarios where DIN rails are used, whether in schools, markets, household appliances, industry, etc. Note: Can only be used to measure 50/60Hz AC current in cities. Simple and Easy to Use: Located on the surface is a blue reset button. If you need to measure multiple data, you only need to press and hold for 5 seconds to reset. The electrical energy value and accumulated electrical energy are automatically saved when the power supply is interrupted. The data continues to accumulate when the measured voltage is reconnected.