Sierra Instruments

Sierra Instruments is a California-based manufacturer specializing in thermal mass flow meters, mass flow controllers, and ultrasonic flow measurement technology for gas and liquid applications. Best known for its QuadraTherm series of thermal mass flow meters, which use patented DrySense sensor technology to virtually eliminate drift and deliver Coriolis-rivaling accuracy, Sierra Instruments equipment is trusted across compressed air auditing, biogas and flare gas monitoring, combustion air control, and emissions compliance reporting. Its flow meters serve power generation, wastewater treatment, oil and gas, chemical processing, and semiconductor industries, where dependable low-flow and high-turndown gas measurement directly affects energy efficiency and regulatory compliance. As a trusted supplier of Sierra Instruments in Oman and the GCC, Seven Star LLC supplies genuine QuadraTherm thermal mass flow meters with manufacturer warranty and regional technical support, helping industrial facilities in Muscat, Sohar, and Salalah achieve accurate gas flow measurement and emissions accountability.

Browse Sierra Instruments products by category: Flowmeters.