Electroscope, polarity detecting

Electroscope, polarity detecting

Item code
EJ0020
Electroscope, polarity detecting
$75.90 $83.49
Stock status: In StockThis item is in stock and available for immediate delivery. If you require this item urgently please indicate so upon checkout.+
The Polarity detecting electroscope not only shows the presence of electric charge, the red/greeen LEDs show whether it is positive or negative (battery operated).