As a precaution to COVID-19, in-store purchase is NOT available but you may place your order online then pickup your order.
Shipping of online order is unaffected. Delivery may be delayed due to carrier backlog. Sorry for the inconvenience.

  • Onboard chip NE555
  • Single output, the output duty cycle square wave is about fifty percent
  • Onboard adjustable resistance, resistance to adjust the output frequency can be controlled
  • Onboard power indicator
  • Working voltage: 5 - 12V
  • Board size: 29 x 12mm

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