Features: *The clip design is easy to use and easy to carry * Long-life neon bulbs, high-brightness work, worry-free, durable, and stable brightness * Humanized design of anti-slip handle, feel comfortable * Chrome vanadium steel magnetic bit material *Ergonomic design, practical and convenient without installing batteries *Identify the live wire: the live wire indicator is on, the zero wire indicator is off *Strong adsorption to improve efficiency The strong magnetic design of the head can adsorb screws and small metal parts to improve work efficiency It can be used in electronic factories, electrical appliances, automobile maintenance, households, etc., and has a wide range of uses. Specifications: Product Name: Electrician Test Pen Shell material: ABS Bit head material: chrome van steel with magnetic Product process: Neon bulb Item model number: B04 Optional specifications: straight line word bit, cross bit Measuring range: zero fire wire identification Quantity: 2pcs Package Included: 2 * B04 screwdriver to measure power Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.