Features:brand new and high qualityElectricity usage monitor: Monitor is the killer of the high-cost energy appliance, helping you lower consumption and save money.AC meter voltage measuring range is AC 50-300V, current measuring range is 0-100A, active range is 0-30kW, electric energy range is 0-1999kWh.Wide viewing angle, color LCD screen, very clear.Built-in CT , Make wiring easier.This voltmeter ammeter is easy to instal and can be used indoor or outdoor in school, market, home, industry, laboratory and other fields.Specifications:Material: PC+MetalColor as shownVoltage Measuring Range : AC 50-300VCurrent Measuring Range: 0-100AActive Range: 0-30kWElectric Energy Range: 0-1999kWhPackage Contents:1x Din Rail WattmeterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.