【6-in-1 Multimeter】One interface displays 6 types of parameters simultaneously, including voltage: AC 40-300V, current: 0-100A, active power: 0-30000W, energy: 0-99999kWh, frequency: 45-65Hz, power factor: 0-1PF. 【Better Visual Experience】Colorful HD LCD screen with 178° viewing angle and no dead zones, featuring backlight function. This energy meter is clearly visible day or night. 【High Quality and Reliability】The kWh meter is made of high-quality ABS flame-retardant material and high-precision chips to ensure safe usage. Single-phase energy meter has excellent anti-electromagnetic interference capability, low power consumption, high accuracy, and long lifespan. 【Multifunction】1. Data can be reset for multiple measurement needs. Press the reset button for 5 seconds to reset the meter. 2. Energy values are automatically saved during power outages. When power is restored, the meter will continue accumulating data. 【Multiple Applications】This voltage/current meter is easy to install and suitable for use in school, shop, home, industry, laboratory, and other areas. Note: The meter can only be used for measuring 50/60Hz city power. It will be damaged if used for non-standard square wave or sinusoidal wave measurements.