Mercury Tilt Switch – Old School Accelerometer

Rummaging through the ubiquitous box of random stuff, I pulled out a mercury tilt switch, which were / are used in vending machines, thermostats, and construction equipment to detect tilt. The liquid drop of mercury conducts current when it bridges two contacts at one end, and, according towikipedia, can operate millions of cycles since there’s no wear. Anyone know the right way to dispose of these?

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CuriousInventor launched in late 2006 (pre-arduino era!) as a place to enable hobbyists, students, and musicians to create their own technology. We sold open-source kits and tools, and offered numerous guides & videos on things like soldering, metal working, screws, electronics, and more. 

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