# SAM #1232SA26Q1074

USDA ARS AFM APD Solicits Two Advanced Flux Towers for Mandan, ND

**Buyer:** ARS APD
**Posted:** September 17, 2026
**Respond By:** September 24, 2026
**Identifier:** 1232SA26Q1074
**NAICS:** 334516, 334519

The USDA Agricultural Research Service (ARS) AFM APD is seeking quotations for two advanced Flux Towers for the PA Natural Resource Management Research facility in Mandan, North Dakota.
- Government Buyer:
  - USDA Agricultural Research Service (ARS)
  - AFM APD office
  - PA Natural Resource Management Research facility
- Products Requested:
  - 2 Flux Towers
    - Carbon and Water Flux System with integrated CO2/H2O analyzers and ultrasonic anemometers
    - Measures CO2 (0-1500 mol mol-1), H2O (0-60 mmol mol-1), latent and sensible heat, momentum, PPFD, air temperature, relative humidity, barometric pressure
    - Integrated ultrasonic anemometer for wind measurements
    - Data retrieval via serial, SDI-12, USB micro
    - Includes one-year subscription to processed data
    - Supports wireless mesh environmental sensor network (up to 50 sensors: temperature, humidity, rainfall, solar radiation, soil moisture, soil temperature)
    - Includes mounting base, 4-5 meter tower, solar panel, and battery for continuous power
- Quantities:
  - 2 complete systems
- Unique Requirements:
  - No environmental sensor package required (per amendment)
  - Delivery required within 30 days after award
  - Compliance with Buy American provisions
  - Technically acceptable offeror with lowest price will be selected
- OEMs:
  - No specific OEMs named; open to all responsible sources
- Notable Technical Details:
  - System must provide processed data subscription and support for extensive environmental sensor integration
  - Must operate continuously via solar power and battery

### Description

<p>17SEP2026 Amendment 0001 is issued.&nbsp; It is a requirement of the solicitation to sign and submit any amendment SF30s with any final Quote.&nbsp;&nbsp;LIST OF CHANGES:<br />
1. Attachment 1 Specifications.pdf is superseded by AMD 0001 Attachment 1&nbsp;Specifications.pdf.&nbsp; 2. There is NO requirement stated in the specifications for an environmental sensor&nbsp;package.&nbsp; 3. The Section 2.0 and specification section numbers indicated in the Technical&nbsp;Acceptability section Technical Capability Narrative subsection do not apply as there are&nbsp;no numbered sections in AMD 0001 Attachment 1 Specifications.pdf. The Technical Capability Narrative shall only include confirmation of technical capability to meet each&nbsp;specification requirement as stated in AMD 0001 Attachment 1 Specifications.pdf.&nbsp; 4. There is NO indication in the Technical&nbsp;Acceptability Section that the _Quoted delivery&nbsp;in days if more than 30 days_ fillable entry in&nbsp;Block 20 of the SF1449 is a condition of&nbsp;Technical Acceptability if over 30 days.</p>

<p>This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in FAR Part 12. &nbsp;This announcement constitutes the only solicitation. &nbsp;Quotations are being requested and a separate written solicitation will not be issued. &nbsp;</p>

<p>Solicitation number 1232SA26Q1074 is issued as a Request for Quotation (RFQ) for Flux Towers.</p>

<p>This acquisition is not set-aside for small business concerns. &nbsp;The applicable North American Industry Classification Standard Code is 334516. &nbsp;This acquisition is an unrestricted requirement. &nbsp; All responsible sources may submit a quotation which will be considered by the agency.</p>

<p><u><strong>It is the quoters responsibility to monitor this solicitation on sam.gov for updates.</strong></u></p>

[View original listing](https://sam.gov/opp/e8f80600fc444851a134d435a0661949/view)