This is a small business set-aside solicitation for one commercial methane gas analyzer, brand name or equal to the Aeris Technologies MIRA Ultra. The analyzer must be highly portable, measure methane and ethane at parts-per-billion precision, and include or integrate with a Nafion dryer, external pump, and flow control. Delivery is required FOB Boulder, CO, within 60 days after receipt of order. No budget amount is specified in the description.