Use a pen holder, and the part of the pen is wrappedwith a rubber sleeve to accidental and short circuit With LED and beepsound in The pen tip can be removed, if thewire is in use, it is easy to connect The circuit design is reasonable, regardless of the positive and poles, the positive and polescanbe connectedfreely Just connect to the two poles of the capacitor, Manufacturer: INSEOWI
Use a pen holder, and the part of the pen is wrappedwith a rubber sleeve to accidental and short circuit With LED and beepsound in The pen tip can be removed, if thewire is in use, it is easy to connect The circuit design is reasonable, regardless of the positive and poles, the positive and polescanbe connectedfreely Just connect to the two poles of the capacitor, Manufacturer: INSEOWI
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