1. The clip design is easy to use and easy to carry2. Long-life bulbs, high-brightness work, worry-free, durable, and stable brightness3. Humanized design of anti- handle, feel comfortable4. Chrome vanadium steel magnetic bit material5. Ergonomic design, practical and convenient without installing batteries6. Identify the live wire: the live wire indicator is on, the zero wire indicator is off7. Strong adsorption to improve efficiency The strong magnetic design of the head can adsorb screws and small metal parts to improve work efficiencyItem model number: B04Product Name: Electrician Test PenMeasuring range: zero fire wire identificationProduct process: bulbApplications: It can be used in electronic factories, electrical appliances, automobile maintenance, households, etc., and has a wide range of uses.color:GreyMaterial:MetalPackage Contents:2 x Voltage Tester PenOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.