Description: The large-screen 100A LCD Digital Voltage Watt Current Power Frequency Meter Ammeter Voltmeter can display power/ current/ voltage/ frequency/power factor/power consumption at the same for time. Equipped with AC current transformer, donnot need to buy it separately. Features: brand new and high quality The large-screen can display power/ current/ voltage/ frequency/power factor/power consumption at the same for time Can measure voltage range of AC 110V-250V and maximal current of 20/100A 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) Note: 1. This module is suitable for indoor, please do not use outdoor. 2. Applied load should not exceed the rated voltage, current. 3. Wiring order cannot be wrong. Specifications: Type: LCD Panel AC Power Meter with AC current transformer Maximum power: 22000W Maximum current: 20/100A Operating voltage: AC 110-250V Voltage accuracy: 1% Power accuracy: 2% Execution standard: for JB/T9282-1999 Function: measure power/ current/ voltage/ frequency/power factor/power consumption Application range: all home electric appliances with voltage of 110V-250V Size: 90x54.5x28mm/3.54x2.15x1.1" Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x LCD Panel AC Power Meter 1 x User Manual 1 x AC current transformer (When Select "100A")