What is a Seismic device?

The seismic sensor operates by detecting seismic motion with reference to Gal, which is the unit of acceleration in the CGS unit system whose basic units are length (Centimeter), mass (Gram), and time (Second). It is a device to do. Acceleration represents how much the speed increases per second, and 1 cm / s2 = 0.01 m / s2 when 1Gal is converted to the International System of Units (SI unit system).
It has a structure that cuts off the circuit by detecting an earthquake motion and when it exceeds the set acceleration (Gal), an OFF signal is issued.

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