C6734 - INSANITY ALARM - SMD

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Here is the SMD version of one of our all time best selling electronic kits. It operates the exact same way Just set this kit in a inconspicuous place with light shining on it and it remains perfectly silent however as soon as the light is turned off the kit emits a high pitched irritating tone! When they turn on the light again to look for the culprit it keeps silent again! Show more