Simulation power outage acousto-optic alarm kit DIY electronic production PCB circuit board sound alarm student training topic

Photosensitive sound light alarm diy kit electronic production invention assembly sound and light sensor module device suite

1

3

-4%

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Photosensitive sound light alarm diy kit electronic production invention assembly sound and light sensor module device suite

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0

-6%

Photosensitive sound light alarm diy kit electronic production invention assembly sound and light sensor module device suite

1

2

1.0

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1

1

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1

1

-10%

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0

0

-7%

Diy circuit board pcb smt smd soldering practice board diy kit fanny skill training electronic suit 77pcs components

1

1

Incomplete data

Diy circuit board pcb smt smd soldering practice board diy kit fanny skill training electronic suit 77pcs components

1

1

5.0

-1%

Diy circuit board pcb smt smd soldering practice board diy kit fanny skill training electronic suit 77pcs components

4

1

-13%

Diy circuit board pcb smt smd soldering practice board diy kit fanny skill training electronic suit 77pcs components

1

1

-3%

Diy circuit board pcb smt smd soldering practice board diy kit fanny skill training electronic suit 77pcs components

1

1

5.0

Diy circuit board pcb smt smd soldering practice board diy kit fanny skill training electronic suit 77pcs components

0

2

-2%

Incomplete data

Diy circuit board pcb smt smd soldering practice board diy kit fanny skill training electronic suit 77pcs components

2

3

5.0

-2%

Diy circuit board pcb smt smd soldering practice board diy kit fanny skill training electronic suit 77pcs components

2

1

5.0

-1%

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0

1

-0.8%

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0

0

-16%

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4

13

5.0

-2%

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0

1

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1

2

5.0

-4%

16 music box sound box electronic production diy parts components accessory kits green/blue

2

1

-5%

Incomplete data

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0

-1%

Incomplete data

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0

-2%

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2

5

5.0

-8%

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0

1

-11%

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0

0

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0

0

1pcs lm317 adjustable voltage-stabilizing power board kit diy production power supply training parts are not refundable

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2

-0.7%

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1

0

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0

0

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0

2

-4%

Lm317 adjustable voltage regulator power board kit production electronic diy large secondary school graduation design parts

3

6

3.7

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Atmega8 atmega48 atmega88 development board avr (no chip) new diy electronic module diy kit pcb board usb interface

2

2

5.0

-31%

16 music box sound box-electronic-production-diy parts-components

1

3

Dc-dc converter adjustable step up module power supply board 3v~35v 6a usb voltmeter non-isolated diy kit electronic pcb board

0

0

Atmega8 atmega48 atmega88 development board avr (no chip) new diy electronic module diy kit pcb board usb interface

2

2

-9%

Atmega8 atmega48 atmega88 development board avr (no chip) new diy electronic module diy kit pcb board usb interface

0

0

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1

3

5.0

Atmega8 atmega48 atmega88 development board avr (no chip) new diy electronic module diy kit pcb board usb interface

1

1

5.0

-47%

Fun 4017 colorful voice-activated rotating led lights circuit board production diy kit electronic diy production parts

1

6

5.0

Incomplete data

Atmega8 atmega48 atmega88 development board avr (no chip) new diy electronic module diy kit pcb board usb interface

0

0

Atmega8 atmega48 atmega88 development board avr (no chip) new diy electronic module diy kit pcb board usb interface

1

1

Atmega8 atmega48 atmega88 development board avr (no chip) new diy electronic module diy kit pcb board usb interface

1

1

5.0

Atmega8 atmega48 atmega88 development board avr (no chip) new diy electronic module diy kit pcb board usb interface

2

2

-0.5%

Atmega8 atmega48 atmega88 development board avr (no chip) new diy electronic module diy kit pcb board usb interface

0

0