Features: Brand new and high quality Multi-function power measuring pen, compact size, a multi-purpose, easy to carry. Line through, LED chip, with magnetic batch head, contact performances is more stable. The design of the indicator, with or without current at a glance. Can detect and identify the 0 fire lines can also be ready to repair household appliances, easy to use. Apply to a variety of scenarios such as home, industry, electricity, maintenance and so on. Specifications: Material:Plastic Head:Cross/Slotted Type:Single LED/Colorful LED Size:Approx.168x26x4mm/6.61x1.02x0.16inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Voltage Detector Screwdriver