10pcs DIY Digital Display LED Logic Pen Electronic Kit High and Low Level Test Circuit Soldering Practice Board Kit

10pcs DIY Digital Display LED Logic Pen Electronic Kit High and Low Level Test Circuit Soldering Practice Board Kit
sku: 1624341
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$14.99
Shipping from: China
   Description
Description Power supply DC 4 5 5VBoard size 3 5 5 5cmLow level judgment voltage 0 0 0 4VHigh level judgment voltage 3 3 5VPackage included 10 x DIY Digital Display LED Logic Pen Electronic Kit
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