Spectrolyser, Data Logger, and assorted calibrations

The USDA Agricultural Research Service (ARS) in Ames, Iowa is soliciting quotations for two Badger Meter Spectrolyser units, associated data loggers, and a suite of calibration kits to support high‑frequency nitrogen and carbon monitoring in agricultural water‑quality research. The requirement is for brand‑name or “equal” equipment that meets specific optical, data‑logging, and wireless communication specifications, with delivery required within 90 days of award. This is an unrestricted commercial item acquisition (NAICS 334516) and any qualified vendor may submit a price proposal. • Quantity: 2 complete Spectrolyser systems (including logger and calibration accessories) • Technical specs: UV‑Vis detector (190‑750 nm), NO₃⁻ measurement up to 50 ppm, organic carbon, turbidity, temperature, on‑board memory for up to 6‑month deployments, wireless data download • Delivery: 90 days after contract award, FOB destination • Evaluation: Lowest price technically acceptable; technical acceptability judged on compliance with “brand‑name or equal” criteria and provision of supporting literature • Submission: Questions due 09/04/2026; offers to be held firm for 90 days after receipt; no pre‑bid meeting required • Contract type: Firm‑fixed‑price purchase order; one award expected