Features:
100% Brand new and high quality!
On-board chip NE555.
A single channel output, the output duty cycle square wave is about fifty percent.
Onboard adjustable resistance, resistance can be controlled to adjust the output frequency.
Best choice for yourself or your friend.You will not be disappointed!
Specifications:
Color: Blue
Working voltage: 5-12V
Size: 29 (mm) x12 (mm)
Package Included:
1 x NE555 Adjustable Resistance Frequency Pulse Generator Module