[Great Material]Made of high-quality materials, strong and durable, has a long service life. [EMF Test]Widely used for electrostatic measurement on the surface of nonwoven fabrics, plastics, films, rubber, fiber composite boards and other products [Portable and Convenient]Small size, easy to carry and store, convenient to use and good performance. [Application]The non-contact electrostatic quality tester can quickly detect the static electricity on the surface of the object. [Quality Service] We strive to provide you with high quality and convenient service. Feel free to contact us if you have any problem about our product. Specification: Item Type: Electrostatic Voltage Tester Material: ABS Model: JED100 Measuring Range: 100v-20kv Battery Model: CR2030(without) Battery Capacity: 1000mAh Size: Approx. 80 x 60 x 20mm / 3.1 x 2.4 x 0.8in Package List: 1 x Electrostatic Voltage Tester Specification: Item Type: Electrostatic Voltage Tester Material: ABS Model: JED100 Measuring Range: 100v-20kv Battery Model: CR2030(without) Battery Capacity: 1000mAh Size: Approx. 80 x 60 x 20mm / 3.1 x 2.4 x 0.8in