KJ8202 - Short Circuits Two Project - Countdown Timer

KJ8202

This neat project enables you to dial a time you want to elapse before you want something to happen, say the exposure of a camera shutter or an electrically operated door to stay open. At the end of the timed period (seconds to many minutes) a relay is energized which can switch something on or off.
•PCB and all parts supplied, including relay.
•Requires 9V battery.

 

 

Specifications

 

 

Instructions sold separately or withing the Short Circuits book range,

 

Short Circuits Books are available for Download Here

 

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