Description
This is a novel design of a 60-second timer piece.High quality PCB, has clearly marked the electronics components, even beginners can easily solder successfully..It is fun to build and nice to look at when finished, it’s not only a PCB board for practicing welding, but also a decorative gift for you..Comes with user manual, which will guide you how to finish step by step, perfect for school basic electronics experiment projects..Operating voltage:DC5V