Seismic Switch Inc. | Elevator Safety Switches

About Us

Family Owned

2nd Generation Business

Keeping Passengers Safe Since 1972

Seismic Switch Inc. is a 2nd generation family-owned business building seismic sensing switches for the elevator industry for over 50 years. Our units are designed to disable equipment that may otherwise become unsafe or unstable during an earthquake.

We take pride that in that time our CHV-2 has become the industry standard seismic switch for use in the elevator industry as well as being adopted into many other areas that need a reliable way to disable sensitive and high value equipment in the event of an earthquake.

Industry Standard Technology
2 Year Limited Warranty
Top Notch Customer Support

The CHV-2 Seismic Switch

The industry standard for elevator safety.

Model CHV-2

Safety First Engineering

The CHV-2 is designed specifically to detect seismic activity and safely control elevator operations. It prevents elevator usage during dangerous conditions, protecting both the equipment and the passengers inside. And with a trigger sensitivity jumper on the board, the CHV-2 allows for flexibility in situations where increased ambient or neighboring vibrations are unavoidable.