Carbon Flux Sensor and Tower
Closed Solicitation Posted
This opportunity was awarded. See the award notice from .
- Solicitation number
- 1232SA26Q1354
- Agency
-
Agricultural Research Service
Department of Agriculture
- Responses due
- Set-aside
- No set-aside
Opportunity facts
- NAICS code
- 334516 Analytical Laboratory Instrument Manufacturing
- PSC
- 6640 Laboratory Equipment And Supplies
- Place of performance
- Stoneville, Mississippi 38776, United States
- Points of contact
Notice details come from SAM.gov. Updated .
About this opportunity
The Department of Agriculture Agricultural Research Service seeks two carbon flux sensor and tower systems via Request for Quotation 1232SA26Q1354, with quotes due September 16, 2026 at 9:00 AM ET. This is an unrestricted, firm-fixed-price commercial-items procurement with no small-business set-aside; all responsible sources may quote.
Place of performance is Stoneville, Mississippi. The NAICS code is 334516 (Analytical Laboratory Instrument Manufacturing); PSC is 6640 (Laboratory Equipment and Supplies).
The procurement requires compact, state-of-the-science carbon flux sensor systems with 5-meter minimum single-mast towers for real-time monitoring of CO2, latent heat, sensible heat, and momentum fluxes in large-scale agricultural fields. Each system must feature an open-path, non-dispersive infrared analyzer measuring CO2 at 0–3,000 mol mol⁻¹ (1% accuracy) and H₂O at 0–60 mmol mol⁻¹ (2% accuracy) at up to 20 Hz sampling for eddy covariance applications. The analyzer head must have a 12.5 cm optical path, 16 cm³ cell volume, temperature-controlled optics, scratch-resistant sapphire windows, and brushless chopper motor. Systems must include integrated ultrasonic anemometer, output raw data at 10 Hz and processed data via serial and SDI-12 protocols, integrate with SmartFlux and EddyPro software, operate continuously in rain, snow, and fog across −25 to +50 degrees Celsius with IEC IP65 weatherproof certification, consume 8–18 W steady-state power, and include solar panels and minimum two-year software license. Delivery is 60 days after order receipt, FOB Destination. No field installation, commissioning, or training is included. Evaluation follows lowest-price-technically-acceptable criteria, with only the lowest-priced quote initially evaluated for technical acceptability and past performance. Offerors must submit completed SF1449, signed Amendments 0001 and 0002, Buy American Certificate (Attachment 2), Place of Manufacture declaration (Attachment 3), and a technical capability narrative not exceeding five pages. Amendment 0002 (September 12) supersedes Amendment 0001, adding Section 2.8 to specifications.
Notice text
4 versions
Update #4 · Latest ·
12SEP2026 - Additional clarification: Attachments 2 and 3 are FAR provision declarations, which are a submission requirement of the solictation. Please submit Attachments 2 and 3 with the quote documentation.
12SEP2026 - Amendment 0002 issued. Attached documentation with amendment SF30 uploaded. LIST OF CHANGES:
1. AMD 0002 Attachment 1 Specifications.pdf supersedes AMD 0001 Attachment 1 Specifications.pdf. Section 2.8 was added. No other changes were made to the specifications.
2. Clarification: No field installation, commissioning, or training is included in the requirement specifications.
3. Signed return of this Amendment SF30 is a requirement of the solicitation.
09SEP2026 - Amendment 0001 issued. Attachment documentation with amendment SF30 uploaded. LIST OF CHANGES:
1. CLIN 0001 Quantity required changed from 1 to 2 each.
2. Attachment 1 Specifications.pdf is superseded by AMD 0001 Attachment 1 Specifications.pdf.
3. The solicitation requires signature and emailed submission of any amendment SF30 documents. Please complete this process in full as part of quote submission.
4. When issuing the pricing quote on the base SF1449, please populate the CLIN 0001 block 23 UNIT PRICE with the UNIT PRICE and the block 24 AMOUNT with the TOTAL AMOUNT for 2 EA.
This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in FAR Part 12. This announcement constitutes the only solicitation. Quotations are being requested and a separate written solicitation will not be issued.
Solicitation number 1232SA26Q1354 is issued as a Request for Quotation (RFQ) for Carbon Flux Sensor and Tower.
This acquisition is not set-aside for small business concerns. The applicable North American Industry Classification Standard Code is 334516. This acquisition is an unrestricted requirement. All responsible sources may submit a quotation which will be considered by the agency.
It is the quoters responsibility to monitor sam.gov for any changes to this soliciation.
Update #3 ·
12SEP2026 - Amendment 0002 issued. Attached documentation with amendment SF30 uploaded. LIST OF CHANGES:
1. AMD 0002 Attachment 1 Specifications.pdf supersedes AMD 0001 Attachment 1 Specifications.pdf. Section 2.8 was added. No other changes were made to the specifications.
2. Clarification: No field installation, commissioning, or training is included in the requirement specifications.
3. Signed return of this Amendment SF30 is a requirement of the solicitation.
09SEP2026 - Amendment 0001 issued. Attachment documentation with amendment SF30 uploaded. LIST OF CHANGES:
1. CLIN 0001 Quantity required changed from 1 to 2 each.
2. Attachment 1 Specifications.pdf is superseded by AMD 0001 Attachment 1 Specifications.pdf.
3. The solicitation requires signature and emailed submission of any amendment SF30 documents. Please complete this process in full as part of quote submission.
4. When issuing the pricing quote on the base SF1449, please populate the CLIN 0001 block 23 UNIT PRICE with the UNIT PRICE and the block 24 AMOUNT with the TOTAL AMOUNT for 2 EA.
This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in FAR Part 12. This announcement constitutes the only solicitation. Quotations are being requested and a separate written solicitation will not be issued.
Solicitation number 1232SA26Q1354 is issued as a Request for Quotation (RFQ) for Carbon Flux Sensor and Tower.
This acquisition is not set-aside for small business concerns. The applicable North American Industry Classification Standard Code is 334516. This acquisition is an unrestricted requirement. All responsible sources may submit a quotation which will be considered by the agency.
It is the quoters responsibility to monitor sam.gov for any changes to this soliciation.
Update #2 ·
09SEP2026 - Amendment 0001 issued. Attachment documentation with amendment SF30 uploaded. LIST OF CHANGES:
1. CLIN 0001 Quantity required changed from 1 to 2 each.
2. Attachment 1 Specifications.pdf is superseded by AMD 0001 Attachment 1 Specifications.pdf.
3. The solicitation requires signature and emailed submission of any amendment SF30 documents. Please complete this process in full as part of quote submission.
4. When issuing the pricing quote on the base SF1449, please populate the CLIN 0001 block 23 UNIT PRICE with the UNIT PRICE and the block 24 AMOUNT with the TOTAL AMOUNT for 2 EA.
This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in FAR Part 12. This announcement constitutes the only solicitation. Quotations are being requested and a separate written solicitation will not be issued.
Solicitation number 1232SA26Q1354 is issued as a Request for Quotation (RFQ) for Carbon Flux Sensor and Tower.
This acquisition is not set-aside for small business concerns. The applicable North American Industry Classification Standard Code is 334516. This acquisition is an unrestricted requirement. All responsible sources may submit a quotation which will be considered by the agency.
Update #1 ·
This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in FAR Part 12. This announcement constitutes the only solicitation. Quotations are being requested and a separate written solicitation will not be issued.
Solicitation number 1232SA26Q1354 is issued as a Request for Quotation (RFQ) for Carbon Flux Sensor and Tower.
This acquisition is not set-aside for small business concerns. The applicable North American Industry Classification Standard Code is 334516. This acquisition is an unrestricted requirement. All responsible sources may submit a quotation which will be considered by the agency.
Files
Notice history
| Notice | Type | Posted |
|---|---|---|
| Carbon Flux Sensor and Tower | Award Notice | |
| This notice | Solicitation |
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| Opportunity | Agency | Set-aside | Responses due |
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| Heat Flux Transducers | Forest Service | Total Small Business |
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