This is a standard foil voltage tester that allows you to easily understand the principles of electrostatic induction.
It is used in experiments to examine the amount of electricity, whether or not there is a charge, the polarity of the charge, and the quality of insulation by opening and closing the foil.
If the glass bottle itself becomes charged, it will interfere with the operation of the foil, so the inside of the bottle is coated with an antistatic agent. Bottle size: Approx. φ97 x H140mm
Product code: 133-160
