Jaycar Short Circuits Three – Universal Timer Kit (1s to 3.5min, LED + Buzzer)

You need a timer that actually tells you it's done — not another app buried under seventeen notifications. This kit gives you a simple, adjustable timer from 1 second up to 3.5 minutes. LED lights up while it's counting. Buzzer fires the second it hits zero. Solder the PCB, connect 12VDC, and it's running. No pairing, no charging, no 'is that my phone buzzing?'. Add to cart and get it on your bench

• Adjustable timing range: 1 second to 3.5 minutes
• LED indicator illuminates throughout the timing period
• Buzzer sounds at the end of the set interval
• Requires 12VDC power supply (not included)
• Kit includes PCB, buzzer, and all electronic components
• Part of the Jaycar Short Circuits Three electronics project range