Electroscope, Needle (Each)

This electroscope is great for hands on experience with electrostatic principles in physics classrooms and labs. The sheet metal walls of the electroscope are attached to a plastic base and top. Front glass window slides up to allow insertion of ionizing material in chamber. 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 graduated scale is provided to measure the angle of the deflection.

Fitted with 4mm socket. Assembled, the electroscope measures 4 x 3.75 x 2.25 inches.