What Is Negative Room Pressure?

Setra Systems, Inc. was founded in 1967 and is world-renowned for capacitor technology. The revolutionary high-precision variable capacitance conversion principle invented by Setra's founders, Dr. YT Li and Dr. SY Lee, has obtained more than 30 patents and serves as the core technology of Setra's pressure, acceleration, and weighing products. Used in a variety of sophisticated equipment.