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DESCRIPTION
The Tree Perception Tester is a handheld device that measures the
user's threshold of perception of light. A persons threshold of perception depends upon
several physical and physiological factors.
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NOTEWORTHY TECHNOLOGY
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ST6220 embedded
microcontroller
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Results reported to an
LCD display
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Nine volt battery powered.
Successfully designed for long battery life. |
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Molded plastic case with side switch,
battery compartment and display window |
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