Strand Earthquake Consultants sells earthquake safety equipment including: California (Koso) Seismic Gas Shutoff Valves, Seismic Switches, Seismic Actuators, Three-Way Valves, Remote Actuators, Terra Technology Corp. Strong Motion Recorders, Accelerometers and Velocity Sensors Strand Earthquake Consultants invites you to browse some of our current product offerings below. For more information, ...

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