Designed for direct mounting in house electrical switches boxes with simplified wiring ( supports live wire threading or external CT connection) Fits standard track setups without complex modifications Accurately records kWh usage with 1 total RESET function for device / house energy analysis Enables power management to optimize electricity efficiency Features a 178° wide angles color screen with clear parameter differentiation and flat industrial design Ensures readability even in bright light for easy post installation Simultaneously displays electric, current, active power, energy, frequency, and power factor on 1 screen with 1% ±2 digits accuracy Ideal for home power distribution and equipment debugging, providing comprehensive electrical parameter tracking Measures 40 300 electric and 0 100A current, supporting up to 30kW ( 22kW home compatible) load Works with built in / external current power converter for flexible single phase 220V applications, Manufacturer: Zxfdsfdbnm