10PCS NE555 Pulse Signal Generator Module Frequency Adjustable Square Wave 5-12V

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Specifications:
1. Onboard NE555 IC.
2. Single channel signal output, the output duty cycle about 50% square wave.
3. Plate load resistor, adjust the resistance to control the output frequency.
4. Onboard power indicator.
5. Working voltage: 5V~12V.
Size: 28mm x 11mm x 12mm / 1.09\" x 0.43\" x 0.47\" (inch) (approx)
Package Included:
10 x NE555 IC Pulse Signal Generator Module 5-12V Frequency Adjustable Square Wave Ouptut For Arduino Smart Car

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• If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.