Short Circuits Two Project Kit – Countdown Timer with Relay (9V)

You need a timer that fires a relay after a set period — seconds to minutes — and you don't want to hunt for individual parts. This Short Circuits Two kit has the PCB, every component, and the relay in one box. Dial your time. Power it with a 9V battery. When the countdown hits zero, the relay switches your load on or off. Camera shutter exposure, an electrically operated door staying open, or any timed trigger you're building. Solder it up, plug in the battery, done

• PCB and all components supplied — including the relay
• Dial-in timing from seconds to many minutes
• Relay output switches a compatible load on or off at the end of the countdown
• Runs on a standard 9V battery
• Part of the Short Circuits Two project series