The Sierra 810C--DR-2-V3-S0 Digital Methane Mass Flow Controller, manufactured by Sierra Instruments, is a high-quality product designed for precise control of methane gas flow. With a maximum flow rate of 2 SLPM, this controller is ideal for a variety of industrial applications requiring accurate and reliable flow measurement. Its advanced digital technology ensures accurate and consistent performance, making it a valuable tool for businesses in the hydraulics, pneumatics, pumps, and plumbing industries.

The unit was purchased new, used in a laboratory research project for 1 year intermittently, and then stored in the original box until now.