Inertia Switch Inc. is a full-service design, engineering, and manufacturing firm founded in 1950. Since our inception, we have designed, qualified, and delivered thousands of types of products. We specialize in acceleration switches of all kinds, but we also manufacture limit switches, prostheses, incandescent digital displays, and many other standardized and unique products.

For fifty years customers in every demanding field (military, aviation, space, marine, industrial, transportation, laboratory, medical, among others) have turned to us with exacting requirements for critical applications in often harsh environments. Our consistent reliability and quality has helped us build a strong reputation and loyal customer base that includes most major aerospace OEM’s.

Our patented "Magnetically Restrained Seismic System" represents a significant advance in the state of the art of motion sensing and acceleration measurement. This system is utilized in the majority of our acceleration switches. These switches have established a unique record of accuracy and reliability in an array of programs throughout the world.

In addition to the existing standard products described throughout our website, Inertia Switch offers comprehensive design, engineering, and manufacturing resources for the development of new and/or custom products. Contact our staff with any requirement – no project is too difficult, no program too small.

MADE IN THE USA
Inertia Switch Inc. is proudly owned by US citizens. We use only American-supplied components and raw materials. When required, our switches can be supplied certified as 100% US-made in accordance with applicable federal regulations.

QUALITY
Inertia Switch Inc. is committed to operating a Quality Management System that places customer satisfaction and product performance at the top of its priorities. Our quality management system complies with the requirements of ISO 9001, AS 9003, MIL-I-45208A, MIL-Q-9858A in part, and FAR 21.303 (PMA), among others. This system assures that all products delivered to the customer for acceptance conform to contract requirements.

IN-HOUSE CAPABILITIES
One of our many strengths is self-reliance. We have the capability to perform all manufacturing steps in-house, which leads to lower costs and consistently higher quality. Our resources include an engineering staff with over 100 years of combined experience in product development, various CAD/CAM software suites, a full machine shop with dozens of CNC stations, dedicated tooling and grinding cells, a controlled-environment assembly room, an assembly clean room, an electronics cell for prototyping test equipment, and an inspection lab with 100% NIST-traceable calibrated instruments and test equipment of all types. Most importantly, we rely on the quality-driven commitment of our talented staff. A partial facility listing follows: