Static Charge Indicator
- Buy 30 for $35.95 each and save 11%
Your charge is proof positive!
Now you can determine the sign of the net charge on your statically charged objects. Works with charged rods and electroscopes for determining the final charge type after experimentation. Uses two LEDs to indicate positive or negative charge. 9v battery included.
Products being sold are not toys. They are for Educational / Laboratory use only. They are not for use by children 12 and under.