The pointer electrostatic detector is a versatile tool for physics lab instruments, providing an intuitive demonstration of electromagnetic principles. Its high sensitivity design allows for the detection of static electricity and weak currents, making it suitable for professional research. The compact and portable design is ideal for classroom demonstrations, lab research, and exploration. Made from materials, it ensures long-term performance, reducing the need for frequent replacements. Easy to operate, it is ideal for learners of all ages, enhancing their understanding and interest in physics experiments. Features -Color:Assorted Color -Material:Plastic,iron -Size:34.00X19.50X7.00cm/13.36X7.66X2.75in -High sensitivity for experiments: detect even the smallest static charges with this static electricity detector, ideal for electricity science kits and electrostatic physics equipment - construction: made from materials, this physics experiment props ensure longterm use, reducing the need for frequent replacements in laboratory teaching supplies -Versatile application: ideal for physics classroom teaching aids, science tools, and laboratory equipment, this physics learning kit adapts to various educational scenarios -Quick and easy operation: this static charge experiment kit is designed for immediate use, simplifying the process for educators and students during science experiments -Enhance conceptual understanding: use this electrostatics demonstration kit to visually explain static electricity principles, improving student engagement and learning outcomes Package list: 1 x Needle Electric Tester