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61% off
1/2/5pcs HCW-M135 Dual MOS LED Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module 1/2/5pcs HCW-M135 Dual MOS LED Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module

1/2/5pcs HCW-M135 Dual MOS LED Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module

$26.68$68.41

2 sold
53% off
Practical 4-Digit Digital Clock Kit YH-351 - AT89C2051 MCU with Alarm, Countdown & Power-Off Memory for Electronics Hobbyists Practical 4-Digit Digital Clock Kit YH-351 - AT89C2051 MCU with Alarm, Countdown & Power-Off Memory for Electronics Hobbyists

Practical 4-Digit Digital Clock Kit YH-351 - AT89C2051 MCU with Alarm, Countdown & Power-Off Memory for Electronics Hobbyists

$38.48$81.88

12 sold
51% off
DC 12V 24V Dual MOS LED Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module DIY DC 12V 24V Dual MOS LED Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module DIY

DC 12V 24V Dual MOS LED Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module DIY

$24.17$49.32

76 sold
50% off
DC5V LED Dot Matrix Electronic Hourglass Gravity-Sensing Timer Soldering Practice Electronic DIY Kit Micro USB Interface DC5V LED Dot Matrix Electronic Hourglass Gravity-Sensing Timer Soldering Practice Electronic DIY Kit Micro USB Interface

DC5V LED Dot Matrix Electronic Hourglass Gravity-Sensing Timer Soldering Practice Electronic DIY Kit Micro USB Interface

$57.98$115.96

349 sold
7% off
LED Hourglass Learning Kit - STC Microcontroller DIY Soldering Project for Beginners, Simulated Sand Flow Electronics Education LED Hourglass Learning Kit - STC Microcontroller DIY Soldering Project for Beginners, Simulated Sand Flow Electronics Education

LED Hourglass Learning Kit - STC Microcontroller DIY Soldering Project for Beginners, Simulated Sand Flow Electronics Education

$10.15$10.91

22 sold
25% off
DC 5V-30V Dual MOS Time Delay Relay High Level Trigger LED Digital Display Cycle Time Timer Delay Switch Circuit 12V 24V 0-999 DC 5V-30V Dual MOS Time Delay Relay High Level Trigger LED Digital Display Cycle Time Timer Delay Switch Circuit 12V 24V 0-999

DC 5V-30V Dual MOS Time Delay Relay High Level Trigger LED Digital Display Cycle Time Timer Delay Switch Circuit 12V 24V 0-999

$1.43$1.91

7 sold
30% off
Basketball Game 24 Seconds Countdown Electric 2-Bit Countdown Electronic Production Practice Electronic Teaching Kit DIY Basketball Game 24 Seconds Countdown Electric 2-Bit Countdown Electronic Production Practice Electronic Teaching Kit DIY

Basketball Game 24 Seconds Countdown Electric 2-Bit Countdown Electronic Production Practice Electronic Teaching Kit DIY

$3.01$4.30

51% off
DC5V LED Digital Electronic Clock DIY Kit Instructional Soldering Components Featuring Alarm, Temperature and Countdown Function DC5V LED Digital Electronic Clock DIY Kit Instructional Soldering Components Featuring Alarm, Temperature and Countdown Function

DC5V LED Digital Electronic Clock DIY Kit Instructional Soldering Components Featuring Alarm, Temperature and Countdown Function

$62.70$127.95

92 sold
50% off
AOZILIN Double‑Sided LED Countdown Timer, Electronic Digital Clock for Marathon Exam Speech Debate Conference Competition Timing AOZILIN Double‑Sided LED Countdown Timer, Electronic Digital Clock for Marathon Exam Speech Debate Conference Competition Timing

AOZILIN Double‑Sided LED Countdown Timer, Electronic Digital Clock for Marathon Exam Speech Debate Conference Competition Timing

$99.85$199.71

51% off
Electronic LED Dot Matrix Hourglass DIY Kit Gravity Sensing Timer Clock Soldering Practice Electronic Hourglass DIY Kit Parts Electronic LED Dot Matrix Hourglass DIY Kit Gravity Sensing Timer Clock Soldering Practice Electronic Hourglass DIY Kit Parts

Electronic LED Dot Matrix Hourglass DIY Kit Gravity Sensing Timer Clock Soldering Practice Electronic Hourglass DIY Kit Parts

$25.64$52.32

17 sold
1pcs time control switch intermittent infinite loop countdown switch controller timing relay module 5V 1pcs time control switch intermittent infinite loop countdown switch controller timing relay module 5V

1pcs time control switch intermittent infinite loop countdown switch controller timing relay module 5V

$42.00$42.00

50% off
LED Digital Electronic Clock DIY Kit Clock Teaching Welding Exercise Circuit Board Set with Alarm Clock Temperature Countdown LED Digital Electronic Clock DIY Kit Clock Teaching Welding Exercise Circuit Board Set with Alarm Clock Temperature Countdown

LED Digital Electronic Clock DIY Kit Clock Teaching Welding Exercise Circuit Board Set with Alarm Clock Temperature Countdown

$62.78$125.56

2 sold
50% off
DIY LED Dot Matrix Electronic Kit Hourglass Gravity-Sensing Timer Electronic Soldering Practice Component DC5V DIY LED Dot Matrix Electronic Kit Hourglass Gravity-Sensing Timer Electronic Soldering Practice Component DC5V

DIY LED Dot Matrix Electronic Kit Hourglass Gravity-Sensing Timer Electronic Soldering Practice Component DC5V

$81.46$162.93

6 sold
HXY-1PCS AC 220V 230V LED Display Countdown Timing Timer Delay Turn OFF Time R elay Module Board For arduino HXY-1PCS AC 220V 230V LED Display Countdown Timing Timer Delay Turn OFF Time R elay Module Board For arduino

HXY-1PCS AC 220V 230V LED Display Countdown Timing Timer Delay Turn OFF Time R elay Module Board For arduino

$27.73$27.73

12 sold
Free Ship 1PCS Trigger 99 Adjustable LED Digital Tube Display Countdown Microcontroller Relay Module Module Circuit Free Ship 1PCS Trigger 99 Adjustable LED Digital Tube Display Countdown Microcontroller Relay Module Module Circuit

Free Ship 1PCS Trigger 99 Adjustable LED Digital Tube Display Countdown Microcontroller Relay Module Module Circuit

$4.11$4.11

CN101A Timer Switch AC/DC 12V 24V 110V 120V 220V 230V 240V Digital LCD Power Week Mini Programmable Time Switch Relay 8A to 16A CN101A Timer Switch AC/DC 12V 24V 110V 120V 220V 230V 240V Digital LCD Power Week Mini Programmable Time Switch Relay 8A to 16A

CN101A Timer Switch AC/DC 12V 24V 110V 120V 220V 230V 240V Digital LCD Power Week Mini Programmable Time Switch Relay 8A to 16A

$3.38$3.38

65 sold
53% off
DC5V LED Dot Matrix Electronic Hourglass Gravity-Sensing Timer Soldering Practice Electronic DIY Kit Micro USB Interface DC5V LED Dot Matrix Electronic Hourglass Gravity-Sensing Timer Soldering Practice Electronic DIY Kit Micro USB Interface

DC5V LED Dot Matrix Electronic Hourglass Gravity-Sensing Timer Soldering Practice Electronic DIY Kit Micro USB Interface

$56.87$121.00

152 sold
5% off
DIY Electronic Hourglass Soldering Kit LED Sand Timer with Adjustable 1–99 Minute Countdown STEM Electronics Project for Adults DIY Electronic Hourglass Soldering Kit LED Sand Timer with Adjustable 1–99 Minute Countdown STEM Electronics Project for Adults

DIY Electronic Hourglass Soldering Kit LED Sand Timer with Adjustable 1–99 Minute Countdown STEM Electronics Project for Adults

$18.99$19.99

DC 12V 24V Dual MOS LED Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module DIY

DC 12V 24V Dual MOS LED Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module DIY

$11.12$11.12

31 sold
AC 220V Power‑on Delay Relay Module Time Delay Turn‑on Switch Board 1‑200s Adjustable Timer Control Relay Module AC 220V Power‑on Delay Relay Module Time Delay Turn‑on Switch Board 1‑200s Adjustable Timer Control Relay Module

AC 220V Power‑on Delay Relay Module Time Delay Turn‑on Switch Board 1‑200s Adjustable Timer Control Relay Module

$1.58$1.58

7 sold
49% off
DC 5V Electronic LED Candle Light, Countdown/Message Ambient Lighting Module, 8x16 LED Matrix Display Light, USB-Powered DC 5V Electronic LED Candle Light, Countdown/Message Ambient Lighting Module, 8x16 LED Matrix Display Light, USB-Powered

DC 5V Electronic LED Candle Light, Countdown/Message Ambient Lighting Module, 8x16 LED Matrix Display Light, USB-Powered

$61.70$123.39

7 sold
STEM DIY 24-Second Shot Clock Kit 2-Digit LED Countdown Timer Module for Basketball Games & Educational Projects STEM DIY 24-Second Shot Clock Kit 2-Digit LED Countdown Timer Module for Basketball Games & Educational Projects

STEM DIY 24-Second Shot Clock Kit 2-Digit LED Countdown Timer Module for Basketball Games & Educational Projects

$27.47$27.47

40% off
Button Count Trigger Close Timing Delay Countdown Time Relay Switch Module Infinite Cycle On Off Button Count Trigger Close Timing Delay Countdown Time Relay Switch Module Infinite Cycle On Off

Button Count Trigger Close Timing Delay Countdown Time Relay Switch Module Infinite Cycle On Off

$31.20$52.00

Trigger Loop Timer Delay Switch Circuit with LED Digital Display Dual MOS Control Board Instead of Relay Module 12 24V Trigger Loop Timer Delay Switch Circuit with LED Digital Display Dual MOS Control Board Instead of Relay Module 12 24V

Trigger Loop Timer Delay Switch Circuit with LED Digital Display Dual MOS Control Board Instead of Relay Module 12 24V

$5.23$5.23

9 sold
9-second Countdown Practical Training Experiment DIY Electronic Technology To Make Welding Exercises 9-second Countdown Practical Training Experiment DIY Electronic Technology To Make Welding Exercises

9-second Countdown Practical Training Experiment DIY Electronic Technology To Make Welding Exercises

$51.66$51.66

12% off
DC 5V 12V 24V 10A Adjustable Time Delay Relay Module LED Digital Timming Relay Timer Delay Trigger Switch Timer Control Switch DC 5V 12V 24V 10A Adjustable Time Delay Relay Module LED Digital Timming Relay Timer Delay Trigger Switch Timer Control Switch

DC 5V 12V 24V 10A Adjustable Time Delay Relay Module LED Digital Timming Relay Timer Delay Trigger Switch Timer Control Switch

$1.87$2.12

2 sold
51% off
Countdown Traffic Light Making Kit Digital Circuit Electronic DIY Teaching Practical Training Soldering Practice Loose Parts Countdown Traffic Light Making Kit Digital Circuit Electronic DIY Teaching Practical Training Soldering Practice Loose Parts

Countdown Traffic Light Making Kit Digital Circuit Electronic DIY Teaching Practical Training Soldering Practice Loose Parts

$41.64$84.98

DC 12V Digital Display Delay Relay Delay Time Multi-function Module Infinite Loop Countdown Switch Control Module Timer Module DC 12V Digital Display Delay Relay Delay Time Multi-function Module Infinite Loop Countdown Switch Control Module Timer Module

DC 12V Digital Display Delay Relay Delay Time Multi-function Module Infinite Loop Countdown Switch Control Module Timer Module

$2.20$2.20

2 sold
Basketball Game 24 Second Countdown Circuit 24 Second Timer Electronic Production Training DIY Kit (loose) Basketball Game 24 Second Countdown Circuit 24 Second Timer Electronic Production Training DIY Kit (loose)

Basketball Game 24 Second Countdown Circuit 24 Second Timer Electronic Production Training DIY Kit (loose)

$6.78$6.78

6% off
JK13 AC 220V Digital Delay Relay Module Delay Timer Switch Turn Off Board 0-9.9 S/Minutes Delay Relay Module Power Supply JK13 AC 220V Digital Delay Relay Module Delay Timer Switch Turn Off Board 0-9.9 S/Minutes Delay Relay Module Power Supply

JK13 AC 220V Digital Delay Relay Module Delay Timer Switch Turn Off Board 0-9.9 S/Minutes Delay Relay Module Power Supply

$15.12$16.09

39 sold
30% off
Electronic Stopwatch Timer Multi-function Digital Countdown Diy Electronic Kit Based on 51 Single Chip Microcomputer Design Electronic Stopwatch Timer Multi-function Digital Countdown Diy Electronic Kit Based on 51 Single Chip Microcomputer Design

Electronic Stopwatch Timer Multi-function Digital Countdown Diy Electronic Kit Based on 51 Single Chip Microcomputer Design

$4.84$6.92

50% off
AOZILIN Digital Circuit Traffic Light Kit 10/20/30s Countdown Lamp DIY Electronic Components for Physics Experiment Teaching AOZILIN Digital Circuit Traffic Light Kit 10/20/30s Countdown Lamp DIY Electronic Components for Physics Experiment Teaching

AOZILIN Digital Circuit Traffic Light Kit 10/20/30s Countdown Lamp DIY Electronic Components for Physics Experiment Teaching

$59.47$118.95

DIY Electronic Kit 6Bit Red LED Alarm Clock Counter Countdown Stopwatch Soldering Project Practice Suite Welding Learning DIY Electronic Kit 6Bit Red LED Alarm Clock Counter Countdown Stopwatch Soldering Project Practice Suite Welding Learning

DIY Electronic Kit 6Bit Red LED Alarm Clock Counter Countdown Stopwatch Soldering Project Practice Suite Welding Learning

$10.62$10.62

6 sold
25% off
DIY Electronic Windmill Kit Funny Rotating Light Practice Board LED Gyroscope Electronic Candle Hourglass for Training Soldering DIY Electronic Windmill Kit Funny Rotating Light Practice Board LED Gyroscope Electronic Candle Hourglass for Training Soldering

DIY Electronic Windmill Kit Funny Rotating Light Practice Board LED Gyroscope Electronic Candle Hourglass for Training Soldering

$0.93$1.24

10 sold
DC 5V 12V 24V 10A Adjustable Time Delay Relay Module 32 52 Modes LED Digital Timming Trigger Timer Control Switch Pulse Cycle DC 5V 12V 24V 10A Adjustable Time Delay Relay Module 32 52 Modes LED Digital Timming Trigger Timer Control Switch Pulse Cycle

DC 5V 12V 24V 10A Adjustable Time Delay Relay Module 32 52 Modes LED Digital Timming Trigger Timer Control Switch Pulse Cycle

$2.68$2.68

66 sold
18% off
Countdown Traffic Light Making Kit Digital Circuit Electronic DIY Teaching Practical Training Soldering Practice Loose Parts Countdown Traffic Light Making Kit Digital Circuit Electronic DIY Teaching Practical Training Soldering Practice Loose Parts

Countdown Traffic Light Making Kit Digital Circuit Electronic DIY Teaching Practical Training Soldering Practice Loose Parts

$51.17$62.40

61% off
1/2/5pcs HCW-M135 Dual MOS LED Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module 1/2/5pcs HCW-M135 Dual MOS LED Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module

1/2/5pcs HCW-M135 Dual MOS LED Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module

$26.68 $68.41

2 sold

Categories: Electronic Components & Supplies, Active Components

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53% off
Practical 4-Digit Digital Clock Kit YH-351 - AT89C2051 MCU with Alarm, Countdown & Power-Off Memory for Electronics Hobbyists Practical 4-Digit Digital Clock Kit YH-351 - AT89C2051 MCU with Alarm, Countdown & Power-Off Memory for Electronics Hobbyists

Practical 4-Digit Digital Clock Kit YH-351 - AT89C2051 MCU with Alarm, Countdown & Power-Off Memory for Electronics Hobbyists

$38.48 $81.88

12 sold

Categories: Electronic Components & Supplies, Active Components

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51% off
DC 12V 24V Dual MOS LED Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module DIY DC 12V 24V Dual MOS LED Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module DIY

DC 12V 24V Dual MOS LED Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module DIY

$24.17 $49.32

76 sold

Categories: Electronic Components & Supplies, Active Components

Buy Now
50% off
DC5V LED Dot Matrix Electronic Hourglass Gravity-Sensing Timer Soldering Practice Electronic DIY Kit Micro USB Interface DC5V LED Dot Matrix Electronic Hourglass Gravity-Sensing Timer Soldering Practice Electronic DIY Kit Micro USB Interface

DC5V LED Dot Matrix Electronic Hourglass Gravity-Sensing Timer Soldering Practice Electronic DIY Kit Micro USB Interface

$57.98 $115.96

349 sold

Categories: Electronic Components & Supplies, Active Components

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7% off
LED Hourglass Learning Kit - STC Microcontroller DIY Soldering Project for Beginners, Simulated Sand Flow Electronics Education LED Hourglass Learning Kit - STC Microcontroller DIY Soldering Project for Beginners, Simulated Sand Flow Electronics Education

LED Hourglass Learning Kit - STC Microcontroller DIY Soldering Project for Beginners, Simulated Sand Flow Electronics Education

$10.15 $10.91

22 sold

Categories: Electronic Components & Supplies, Active Components

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25% off
DC 5V-30V Dual MOS Time Delay Relay High Level Trigger LED Digital Display Cycle Time Timer Delay Switch Circuit 12V 24V 0-999 DC 5V-30V Dual MOS Time Delay Relay High Level Trigger LED Digital Display Cycle Time Timer Delay Switch Circuit 12V 24V 0-999

DC 5V-30V Dual MOS Time Delay Relay High Level Trigger LED Digital Display Cycle Time Timer Delay Switch Circuit 12V 24V 0-999

$1.43 $1.91

7 sold

Categories: Electronic Components & Supplies, Active Components

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30% off
Basketball Game 24 Seconds Countdown Electric 2-Bit Countdown Electronic Production Practice Electronic Teaching Kit DIY Basketball Game 24 Seconds Countdown Electric 2-Bit Countdown Electronic Production Practice Electronic Teaching Kit DIY

Basketball Game 24 Seconds Countdown Electric 2-Bit Countdown Electronic Production Practice Electronic Teaching Kit DIY

$3.01 $4.30

Categories: Electronic Components & Supplies, Active Components

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51% off
DC5V LED Digital Electronic Clock DIY Kit Instructional Soldering Components Featuring Alarm, Temperature and Countdown Function DC5V LED Digital Electronic Clock DIY Kit Instructional Soldering Components Featuring Alarm, Temperature and Countdown Function

DC5V LED Digital Electronic Clock DIY Kit Instructional Soldering Components Featuring Alarm, Temperature and Countdown Function

$62.70 $127.95

92 sold

Categories: Electronic Components & Supplies, Active Components

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50% off
AOZILIN Double‑Sided LED Countdown Timer, Electronic Digital Clock for Marathon Exam Speech Debate Conference Competition Timing AOZILIN Double‑Sided LED Countdown Timer, Electronic Digital Clock for Marathon Exam Speech Debate Conference Competition Timing

AOZILIN Double‑Sided LED Countdown Timer, Electronic Digital Clock for Marathon Exam Speech Debate Conference Competition Timing

$99.85 $199.71

Categories: Electronic Components & Supplies, Active Components

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51% off
Electronic LED Dot Matrix Hourglass DIY Kit Gravity Sensing Timer Clock Soldering Practice Electronic Hourglass DIY Kit Parts Electronic LED Dot Matrix Hourglass DIY Kit Gravity Sensing Timer Clock Soldering Practice Electronic Hourglass DIY Kit Parts

Electronic LED Dot Matrix Hourglass DIY Kit Gravity Sensing Timer Clock Soldering Practice Electronic Hourglass DIY Kit Parts

$25.64 $52.32

17 sold

Categories: Electronic Components & Supplies, Active Components

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1pcs time control switch intermittent infinite loop countdown switch controller timing relay module 5V 1pcs time control switch intermittent infinite loop countdown switch controller timing relay module 5V

1pcs time control switch intermittent infinite loop countdown switch controller timing relay module 5V

$42.00 $42.00

Categories: Electronic Components & Supplies, Active Components

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50% off
LED Digital Electronic Clock DIY Kit Clock Teaching Welding Exercise Circuit Board Set with Alarm Clock Temperature Countdown LED Digital Electronic Clock DIY Kit Clock Teaching Welding Exercise Circuit Board Set with Alarm Clock Temperature Countdown

LED Digital Electronic Clock DIY Kit Clock Teaching Welding Exercise Circuit Board Set with Alarm Clock Temperature Countdown

$62.78 $125.56

2 sold

Categories: Electronic Components & Supplies, Active Components

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50% off
DIY LED Dot Matrix Electronic Kit Hourglass Gravity-Sensing Timer Electronic Soldering Practice Component DC5V DIY LED Dot Matrix Electronic Kit Hourglass Gravity-Sensing Timer Electronic Soldering Practice Component DC5V

DIY LED Dot Matrix Electronic Kit Hourglass Gravity-Sensing Timer Electronic Soldering Practice Component DC5V

$81.46 $162.93

6 sold

Categories: Electronic Components & Supplies, Active Components

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HXY-1PCS AC 220V 230V LED Display Countdown Timing Timer Delay Turn OFF Time R elay Module Board For arduino HXY-1PCS AC 220V 230V LED Display Countdown Timing Timer Delay Turn OFF Time R elay Module Board For arduino

HXY-1PCS AC 220V 230V LED Display Countdown Timing Timer Delay Turn OFF Time R elay Module Board For arduino

$27.73 $27.73

12 sold

Categories: Electronic Components & Supplies, Active Components

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Free Ship 1PCS Trigger 99 Adjustable LED Digital Tube Display Countdown Microcontroller Relay Module Module Circuit Free Ship 1PCS Trigger 99 Adjustable LED Digital Tube Display Countdown Microcontroller Relay Module Module Circuit

Free Ship 1PCS Trigger 99 Adjustable LED Digital Tube Display Countdown Microcontroller Relay Module Module Circuit

$4.11 $4.11

Categories: Electronic Components & Supplies, Active Components

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CN101A Timer Switch AC/DC 12V 24V 110V 120V 220V 230V 240V Digital LCD Power Week Mini Programmable Time Switch Relay 8A to 16A CN101A Timer Switch AC/DC 12V 24V 110V 120V 220V 230V 240V Digital LCD Power Week Mini Programmable Time Switch Relay 8A to 16A

CN101A Timer Switch AC/DC 12V 24V 110V 120V 220V 230V 240V Digital LCD Power Week Mini Programmable Time Switch Relay 8A to 16A

$3.38 $3.38

65 sold

Categories: Electronic Components & Supplies, Active Components

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53% off
DC5V LED Dot Matrix Electronic Hourglass Gravity-Sensing Timer Soldering Practice Electronic DIY Kit Micro USB Interface DC5V LED Dot Matrix Electronic Hourglass Gravity-Sensing Timer Soldering Practice Electronic DIY Kit Micro USB Interface

DC5V LED Dot Matrix Electronic Hourglass Gravity-Sensing Timer Soldering Practice Electronic DIY Kit Micro USB Interface

$56.87 $121.00

152 sold

Categories: Electronic Components & Supplies, Active Components

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5% off
DIY Electronic Hourglass Soldering Kit LED Sand Timer with Adjustable 1–99 Minute Countdown STEM Electronics Project for Adults DIY Electronic Hourglass Soldering Kit LED Sand Timer with Adjustable 1–99 Minute Countdown STEM Electronics Project for Adults

DIY Electronic Hourglass Soldering Kit LED Sand Timer with Adjustable 1–99 Minute Countdown STEM Electronics Project for Adults

$18.99 $19.99

Categories: Electronic Components & Supplies, Active Components

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DC 12V 24V Dual MOS LED Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module DIY

DC 12V 24V Dual MOS LED Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module DIY

$11.12 $11.12

31 sold

Categories: Electronic Components & Supplies, Active Components

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AC 220V Power‑on Delay Relay Module Time Delay Turn‑on Switch Board 1‑200s Adjustable Timer Control Relay Module AC 220V Power‑on Delay Relay Module Time Delay Turn‑on Switch Board 1‑200s Adjustable Timer Control Relay Module

AC 220V Power‑on Delay Relay Module Time Delay Turn‑on Switch Board 1‑200s Adjustable Timer Control Relay Module

$1.58 $1.58

7 sold

Categories: Electronic Components & Supplies, Active Components

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49% off
DC 5V Electronic LED Candle Light, Countdown/Message Ambient Lighting Module, 8x16 LED Matrix Display Light, USB-Powered DC 5V Electronic LED Candle Light, Countdown/Message Ambient Lighting Module, 8x16 LED Matrix Display Light, USB-Powered

DC 5V Electronic LED Candle Light, Countdown/Message Ambient Lighting Module, 8x16 LED Matrix Display Light, USB-Powered

$61.70 $123.39

7 sold

Categories: Electronic Components & Supplies, Active Components

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STEM DIY 24-Second Shot Clock Kit 2-Digit LED Countdown Timer Module for Basketball Games & Educational Projects STEM DIY 24-Second Shot Clock Kit 2-Digit LED Countdown Timer Module for Basketball Games & Educational Projects

STEM DIY 24-Second Shot Clock Kit 2-Digit LED Countdown Timer Module for Basketball Games & Educational Projects

$27.47 $27.47

Categories: Electronic Components & Supplies, Active Components

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40% off
Button Count Trigger Close Timing Delay Countdown Time Relay Switch Module Infinite Cycle On Off Button Count Trigger Close Timing Delay Countdown Time Relay Switch Module Infinite Cycle On Off

Button Count Trigger Close Timing Delay Countdown Time Relay Switch Module Infinite Cycle On Off

$31.20 $52.00

Categories: Electronic Components & Supplies, Active Components

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Trigger Loop Timer Delay Switch Circuit with LED Digital Display Dual MOS Control Board Instead of Relay Module 12 24V Trigger Loop Timer Delay Switch Circuit with LED Digital Display Dual MOS Control Board Instead of Relay Module 12 24V

Trigger Loop Timer Delay Switch Circuit with LED Digital Display Dual MOS Control Board Instead of Relay Module 12 24V

$5.23 $5.23

9 sold

Categories: Electronic Components & Supplies, Active Components

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9-second Countdown Practical Training Experiment DIY Electronic Technology To Make Welding Exercises 9-second Countdown Practical Training Experiment DIY Electronic Technology To Make Welding Exercises

9-second Countdown Practical Training Experiment DIY Electronic Technology To Make Welding Exercises

$51.66 $51.66

Categories: Electronic Components & Supplies, Active Components

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12% off
DC 5V 12V 24V 10A Adjustable Time Delay Relay Module LED Digital Timming Relay Timer Delay Trigger Switch Timer Control Switch DC 5V 12V 24V 10A Adjustable Time Delay Relay Module LED Digital Timming Relay Timer Delay Trigger Switch Timer Control Switch

DC 5V 12V 24V 10A Adjustable Time Delay Relay Module LED Digital Timming Relay Timer Delay Trigger Switch Timer Control Switch

$1.87 $2.12

2 sold

Categories: Electronic Components & Supplies, Active Components

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51% off
Countdown Traffic Light Making Kit Digital Circuit Electronic DIY Teaching Practical Training Soldering Practice Loose Parts Countdown Traffic Light Making Kit Digital Circuit Electronic DIY Teaching Practical Training Soldering Practice Loose Parts

Countdown Traffic Light Making Kit Digital Circuit Electronic DIY Teaching Practical Training Soldering Practice Loose Parts

$41.64 $84.98

Categories: Electronic Components & Supplies, Active Components

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DC 12V Digital Display Delay Relay Delay Time Multi-function Module Infinite Loop Countdown Switch Control Module Timer Module DC 12V Digital Display Delay Relay Delay Time Multi-function Module Infinite Loop Countdown Switch Control Module Timer Module

DC 12V Digital Display Delay Relay Delay Time Multi-function Module Infinite Loop Countdown Switch Control Module Timer Module

$2.20 $2.20

2 sold

Categories: Electronic Components & Supplies, Active Components

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Basketball Game 24 Second Countdown Circuit 24 Second Timer Electronic Production Training DIY Kit (loose) Basketball Game 24 Second Countdown Circuit 24 Second Timer Electronic Production Training DIY Kit (loose)

Basketball Game 24 Second Countdown Circuit 24 Second Timer Electronic Production Training DIY Kit (loose)

$6.78 $6.78

Categories: Electronic Components & Supplies, Active Components

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6% off
JK13 AC 220V Digital Delay Relay Module Delay Timer Switch Turn Off Board 0-9.9 S/Minutes Delay Relay Module Power Supply JK13 AC 220V Digital Delay Relay Module Delay Timer Switch Turn Off Board 0-9.9 S/Minutes Delay Relay Module Power Supply

JK13 AC 220V Digital Delay Relay Module Delay Timer Switch Turn Off Board 0-9.9 S/Minutes Delay Relay Module Power Supply

$15.12 $16.09

39 sold

Categories: Electronic Components & Supplies, Active Components

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30% off
Electronic Stopwatch Timer Multi-function Digital Countdown Diy Electronic Kit Based on 51 Single Chip Microcomputer Design Electronic Stopwatch Timer Multi-function Digital Countdown Diy Electronic Kit Based on 51 Single Chip Microcomputer Design

Electronic Stopwatch Timer Multi-function Digital Countdown Diy Electronic Kit Based on 51 Single Chip Microcomputer Design

$4.84 $6.92

Categories: Electronic Components & Supplies, Active Components

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50% off
AOZILIN Digital Circuit Traffic Light Kit 10/20/30s Countdown Lamp DIY Electronic Components for Physics Experiment Teaching AOZILIN Digital Circuit Traffic Light Kit 10/20/30s Countdown Lamp DIY Electronic Components for Physics Experiment Teaching

AOZILIN Digital Circuit Traffic Light Kit 10/20/30s Countdown Lamp DIY Electronic Components for Physics Experiment Teaching

$59.47 $118.95

Categories: Electronic Components & Supplies, Active Components

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DIY Electronic Kit 6Bit Red LED Alarm Clock Counter Countdown Stopwatch Soldering Project Practice Suite Welding Learning DIY Electronic Kit 6Bit Red LED Alarm Clock Counter Countdown Stopwatch Soldering Project Practice Suite Welding Learning

DIY Electronic Kit 6Bit Red LED Alarm Clock Counter Countdown Stopwatch Soldering Project Practice Suite Welding Learning

$10.62 $10.62

6 sold

Categories: Electronic Components & Supplies, Active Components

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25% off
DIY Electronic Windmill Kit Funny Rotating Light Practice Board LED Gyroscope Electronic Candle Hourglass for Training Soldering DIY Electronic Windmill Kit Funny Rotating Light Practice Board LED Gyroscope Electronic Candle Hourglass for Training Soldering

DIY Electronic Windmill Kit Funny Rotating Light Practice Board LED Gyroscope Electronic Candle Hourglass for Training Soldering

$0.93 $1.24

10 sold

Categories: Electronic Components & Supplies, Active Components

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DC 5V 12V 24V 10A Adjustable Time Delay Relay Module 32 52 Modes LED Digital Timming Trigger Timer Control Switch Pulse Cycle DC 5V 12V 24V 10A Adjustable Time Delay Relay Module 32 52 Modes LED Digital Timming Trigger Timer Control Switch Pulse Cycle

DC 5V 12V 24V 10A Adjustable Time Delay Relay Module 32 52 Modes LED Digital Timming Trigger Timer Control Switch Pulse Cycle

$2.68 $2.68

66 sold

Categories: Electronic Components & Supplies, Active Components

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18% off
Countdown Traffic Light Making Kit Digital Circuit Electronic DIY Teaching Practical Training Soldering Practice Loose Parts Countdown Traffic Light Making Kit Digital Circuit Electronic DIY Teaching Practical Training Soldering Practice Loose Parts

Countdown Traffic Light Making Kit Digital Circuit Electronic DIY Teaching Practical Training Soldering Practice Loose Parts

$51.17 $62.40

Categories: Electronic Components & Supplies, Active Components

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