Feature:1 Digital voltmeter with out wiring, the use of socket type, clear-cut operation, clean to apply Ac voltage show meter adopts superb lampshade design, digital tube indicator studying is clear Digital AC voltmeter with dust-proof base supports to lessen dirt entry and make bigger service lifestyles The indicator panel has lengthy carrier life, low energy consumption, small size, mild weight and good affect resistance for power, communication, machine tools, ships, textiles, printing and other industries of signal indication, alarm signal, accident sign Product parameters:Output/input voltage: AC 220VVoltage dimension range: 50~500VMeasurement error: ±2%Ambient temperature: 0~50℃Plug specifications: European regulationsDisplay color: Red, white, blue, green, yellow (optional)Product size: 52*30*30mm Package included:1 x AC 50V-500V 220V Digital Voltage Tester Monitor EU Plug LED Display Square Voltmeter Indicator Light Electrical Instruments