Features: OOTDTY Testing voltage range: 90V~250V/500~60Hz. Compact size, light weight and convenient to use. LCD greatly enhance the reading experience, very easy to read, even in sunlight or poor light. Used to detect polarity of power socket and safety of leakage switch. Accurately detect the wiring of the socket.Simuitaneously, it can test the socket voltage. Specifications: Material: ABS Box Size: approx 75x70x73mm/3x2.8x2.9in Standard: EU/US(optional) Voltage range: 90V~250V/500~60Hz : 2xAAA (NOT included) Package Includes: 1x Socket Tester Note: Please allow 1-3cm 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.