Check the listing for details. Eisco Labs Large Needle Electroscope. Condition: New. Listed at 50.39 USD. Eisco Labs Large Needle Electroscope Eisco Labs Large Needle Electroscope This extra large electroscope is ideal for classroom demonstrations of electrostatic principles. A light-weight metal vane is used as a pointer in the electroscope. This light weight metal blade deflects when the electroscope plate is charged. A transparent scale is provided to measure the angle of the deflection. Front glass window slides up to allow insertion of ionizing material in chamber. This electroscope comes with two accessories: an electrophorus disc and a spherical electrode. Assembled, the electroscope measures 9.75 x 8 x 4.75 inches. Product Details BrandEISCOManufacturerEISCOProduct TypeScience Lab ElectroscopesMpnPH0916 Extra large apparatus ideal for classroom demonstrationsGreat tool to discover electrostatic principles such as conduction, induction and coulomb repulsionClear front pane lifts up to allow easy application of ionizing materials Check out my other items. -Powered by