Designed to detect the presence of electric charge, this sturdy electroscope features a metal case with front and rear glass windows to prevent air currents from affecting the deflection of the leaves.

• Leaves are gold and aluminum.
• Leaf support rod is held in place by an insulating plastic sleeve.
• A graduated scale is also provided for measuring the deflection from 0 to 90 degrees.
• Includes activity guide.
• Pack of 6 spare gold leaves also available, for use with United Scientific's Gold Leaf Electroscope (ELGL01).