C-Squared Inc. is a developer and manufacturer of gas analyzers and gas sensors for various markets including automotive, industrial, diving, medical, and safety monitoring. They offer specialized gas analyzers that are hand-held, battery-operated, rugged, and accurate, with analyzers for Oxygen, CO, Helium, Hydrogen, and a combination of Carbon Dioxide and Oxygen. Additionally, C-Squared provides a full line of galvanic gas sensors, including oxygen sensors, Nox sensors, carbon monoxide sensors, and helium sensors for diverse applications. Their products demonstrate quality, ease of use, and performance in compact designs, catering to the specific needs of different industries.