No, it’s not a predictor of impending quakes, but the GraGraph will sound an alert and tell you how large the earthquake is on the Richter scale (anywhere from 3 to 10).
Hopefully, you’ll never have to use it, so for that reason, it has a built-in LCD clock, alarm and night-light! The GraGraph will also record prior seismic activity. It runs on 4 AA batteries.
This is a Japanese product, but you can snag one from an importer of Japanese products.
Price: $185
(Please note prices are subject to change and the listed price is correct to the best of our knowledge at the time of posting)