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The Gragraph is a home seismograph that warns you as an earthquake is occurring, measures the intensity, and records the data in its calendar. The verbal warnings are in Japanese, but the digital data can be easily accessed in any language. In normal mode, the Gragraph serves as a tabletop calendar/clock and a reference for past activity.
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Gragraph features:
Perceives shaking, and indicates on display
Warns of shaking with sound and voice
Indicates level from 3-10
Keeps record of previous seismic activity
During the night, it activates a safety light
Calendar/Clock function
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Gragraph specifications:
Size: 144x130x127mm (4.7x5.1x5)
Weight (w/o battery): 330g (11.6 oz.)
Time precision: 30 seconds +/- per month
Timer (30 min.)
Temperature range: -10° + 40°
Audio player adapter
Batteries: 4 x AA (not incl.)
Manual (Japanese)
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