Setra Systems was acquired in December 2001 by Gems Sensors of Plainville, Connecticut. Gems Sensors, a wholly-owned subsidiary of the Danaher Corporation . Setra Systems designs and manufactures a broad line of humidity, current, vacuum, and pressure sensing instruments, low pressure calibrators, and weighing and counting scales for a wide variety of applications in the HVAC/R, Semiconductor, Test & Measurement, Medical, and Industrial market. With more than 42 years experience in sensor instrumentation manufacturing, Setra is dedicated to lean manufacturing and ISO certification.