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