100A AC LCD Digital Volt Watt Power Voltage Meter Monitor KWh Voltmeter Ammeter Description brand new and high quality The large-screen can display power/ current/ voltage/frequency/power factor/power Can measure voltage range of AC 110V-250V and maximal current of 100A Equipped with AC current transformer, donnot need to buy it separately With overload alarm function, reset energy function, power alarm threshold preset function, etc. The blue backlight can be turned on/off manually Store energy data when power off (can be reset to 0) Specification Device Type: LCD Panel AC Power Meter with AC current transformer Max. Power: 22000W Max. Current: 100A Operating Voltage: 110~250V Voltage Accuracy: ±1% Power Accuracy: ±2% Execution standard: JB/T9282-1999 Application range: Most home electric appliances with voltage of 110V-250V Dimension: 3.7*2.2* 1 in (94*55*26mm) Weight: 3.32oz (94g) Function: measure power/ current/ voltage/ frequency/power factor/power consumption