DMQ, also known as DunAn Microstaq, Inc., is a MEMS technology company focused on flow control solutions for HVAC, refrigeration, automotive, pneumatic, hydraulic, and industrial applications.

The company's product portfolio includes electronic expansion valves, MEMS microvalves, digital pressure temperature sensors, universal superheat controllers, HVAC retrofit kits, and custom valve packaging solutions.

DMQ products are commonly used in HVAC-R systems, refrigeration equipment, compressor protection, pneumatic control, hydraulic systems, automotive thermal management, and industrial flow control applications that require fast response, compact design, and reliable sensing or valve control.

TomatoElec provides sourcing support for original DMQ products and related HVAC-R control components. As an independent distributor and in-stock electronic components supplier, we support BOM sourcing, inventory matching, and global delivery for DMQ MEMS valves, electronic expansion valves, DPTS sensors, USHX controllers, and hard-to-find flow control components.