I dropped my Sigma Instruments / Fisher Pierce 7701 Photocell about 1ft, onto a desk top while cleaning. It now rattles.

Anything I can do to fix the rattle? The casing moves around now, which I assume is causing the vibration...? Thanks.

You can verify if the rattle is indeed caused by the casing by holding it in place while shaking it.

If it is the casing, some hot/super glue would probably be enough to eliminate the rattle if it bothers you.

Thanks Drew. Any idea as to what causes the rattle in the first place? (I get "impact", but what actually broke loose?)