Upon noting any earthquake with an intensity above 3 (on the Shindo, the Japan Meteorological Agency's seismic intensity scale), the GraGraph sounds its scary alarm and a firm but friendly female voice addresses you in Japanese.
| Maker / Model | Gragraph Home Earthquake Seismograph |
| Earthquake Warning | Voice (in Japanese) and on Display |
| Indicates Level | Level 3 - 10 |
| Additional Function | Calendar / Clock |
| Size | 144 x 130 x 127 mm (4.7 x 5.1 x 5 ”) |
| Color | Grey, Pink, Yellow, Blue |
| Power | Battery 4 x AA not included / AC Adaptor 100V |
