how to make an alarm for a biscuit tin

how to make an alarm for a biscuit tin

Answers
If you are up for an electronics project, try this :) http://detector-sensor.blogspot.com/2008/09/biscuit-tin-alarm.html?utm_source=feedburner=feed=Feed%3A+DetectorAndSensor+%28Detector+and+Sensor%29
jon.ellis
07 February 2011
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