C6735 -** SMD Light Sentry Alarm Kit

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Tiny SMD kit can be hidden in any dark place-closet, desk drawer, briefcase, etc. The moment it senses light it emits a high pitched tone and it continues to scream until you retur n it to a dark place. The SMD Light Sentry Alarm Kit is fun to build and use! Operates from 9V battery (not included). Size of board only 1-5/8" x 1-7/16". Complete with all parts, PC board and instructions. This kit requires soldering of components to the PC board while building. Skill Level 2. Related Items C6363 - TYPE 1 Plastic Box Show more