Features: *Intelligent chip: Equipped with an intelligent chip, this digital display meter ensures accurate and reliable measurement of voltage, current, power, and frequency. *High sensitivity: With high sensitivity, this meter can detect even the slightest changes in voltage, current, power, and frequency. *Active power: This meter is designed to measure the active power in electrical circuits. It accurately calculates and displays the power consumed, allowing users to monitor and optimize their energy usage effectively. *Long life: Built with lasting components and a sturdy casing, this digital display meter has a long lifespan. It can withstand harsh conditions and frequent use. *Easy installation: This meter is designed for easy installation, it comes with clear instructions and all necessary accessories, simplifying the installation process. *Automatic saving function: When the power is off, the meter will automatically save the current power value, and the meter will read the value after the next power, and continue to accumulate. Specifications: *Product Name:High precision digital display meter voltage current power frequency meter *Material:PC flame retardant material *Size:49×47×52mm；Opening size: Diameter 22mm *Color:White *Measurement accuracy: 1% ±2 words *Measuring range: AC voltage: AC50.0-300.0V/AC250.0-450.0V *Ac current: AC0-99.99A, current display resolution is 0.01A, more than 100A display 100.0A *Power frequency :45.0Hz-65.0Hz *Power factor :0.00-1.00PF *Measurement speed: about 2 times per second Package Content: 1 x Multifunction meter Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Intelligent chip: Equipped with an intelligent chip, this digital display meter ensures accurate and reliable measurement of voltage, current, power, and frequency. High sensitivity: With high sensitivity, this meter can detect even the slightest changes in voltage, current, power, and frequency. Active power: This meter is designed to measure the active power in electrical circuits. It accurately calculates and displays the power consumed, allowing users to monitor and optimize their energy usage effectively. Long life: Built with lasting components and a sturdy casing, this digital display meter has a long lifespan. It can withstand harsh conditions and frequent use. Easy installation: This meter is designed for easy installation, it comes with clear instructions and all necessary accessories, simplifying the installation process.