Just did the job for my kid's school project. Simple and easy setup, just works fine. No complaints, could have been priced lower.
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This product arrived in a timely manner and well packaged. It was easy to assemble. For teaching purposes, it gives a nice visual, as well as hands-on. Obviously, there are too many variables for it to be scientifically accurate, but still a good tool for elementary use.
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This was purchased to accompany a science fair project that one of my students did on earthquakes. It looks really good which is why he wanted to get it (better than a home-made seismograph). In use, it was only so-so. It's good for illustrating the components of a good working seismometer, but we were never able to get a good looking seismograph from it.
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bought this for a science fair project. Worked fine for our purposes but touchy. the wire holding the pen keeps falling.
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