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Portable Voltage Test Pen Tester Pencil Non-Contact Electrical Voltage Detector Pen Flat Screwdriver for Hosuehold Home Features: The small size with pocket clip allows you to carry it easily. Dual LED light induction test pen, clear indicator under natural light. With live & null wire identification, high accuracy & safety testing pen. Can help you quickly test circuit breaker, lighting fixtures, switches, outlets, wires, and more. Made of high quality material, durable, sturdy, long for time service. Specifications: Material: Plastic Length: approx 14cm/5.5in Measuring range: 70-250V Power supply: 3x LR41 button battery(included) Package Includes: 1x Voltage 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.