# OCTO-FloX System

Canonical: https://abierto.us/opportunities/1163769

- Solicitation number: 1163769
- Notice type: Sources sought
- Status: Closed. Deadline was March 16, 2026 at 12:00 PM EDT
- Department: Department of Agriculture
- Agency: Agricultural Research Service
- Contracting office: USDA ARS Afm Apd (1232SA)
- NAICS: 334516 Analytical Laboratory Instrument Manufacturing
- Product or service code: 6640 Laboratory Equipment and Supplies
- Place of performance: Beltsville, Maryland
- County: Prince George's County (FIPS 24033). https://abierto.us/counties/prince-george-s-county-md-24033
- City: Beltsville. https://abierto.us/cities/beltsville-md-2406400
- First posted: March 2, 2026
- Last posted: March 2, 2026
- SAM.gov: https://sam.gov/workspace/contract/opp/821defdf6cbe469b9a4e56d4ecff7256/view

## Description

Requirement for a rugged, field-ready hyperspectral spectrometer capable of sufficiently high spectral resolution to acquire solar-induced chlorophyll fluorescence and sequentially measuring six or more targets. Only minor follow-on work (firmware updates) are expected. Product must be equivalent to the OCTO-FloX produced by JB Hyperspectral Devices GmbH.

Salient characteristics for Item 0001: The following are minimum specifications and performance criteria for the unit: • Spectral resolution fine enough to retrieve solar-induced chlorophyll fluorescence (SIF) from telluric and solar absorption features (< 1 nm FWHM). • Wavelength range wide enough to cover 500 – 900 nm to enable simultaneous acquisition of red SIF at 687 nm; far-red SIF at 760 nm; photochemical reflectance index (PRI) at 530 nm and 570 nm; normalized difference vegetation index (NDVI) and near-infrared reflectance of vegetation (NIRv) at 650 nm and 860 nm. • Capable of rapid acquisition across multiple (at least 6) vegetative targets in different plots or growth chambers using fixed fiber optics. • Capable of both hemispherical-conical or bi-hemispherical configurations, adjustable by user through removable cosine correctors designed for outdoor use. • Weatherproof (IP67 rated) to allow deployment of unit in variable outdoor environments. • Integrated thermal regulation to maintain spectrometer temperature consistently at 20 degrees Celsius.

Intelligent temperature management modes for power saving. Heatingo for cold conditions. • System operational temperature range from -10 to 50 degrees Celsius.• Automatic optimization of integration time to maximize spectrometer dynamic range across 0-2000 PPFD. • Correction for dark current and detector nonlinearity. • Wavelength calibration and optimization of spectral shift. • Radiometric calibration for both bare fiber and cosine corrected fiber configurations. Salient characteristics for Item 0002 – JB COS Cosine Receptor for the measurement of solar irradiance. Must be equivalent to the JB COS produced by JB Hyperspectral.

**Salient Characteristics for Item 0002:** • Must be 100 percent compatible with the other item(s) described in this notice (see Item 0001). • Cosine error of < 10% at 80 degrees • Spectral range of 400 nm - 1000 nm

## Publications

- March 2, 2026: Sources sought, due March 16, 2026 at 12:00 PM EDT. Notice 821defdf6cbe469b9a4e56d4ecff7256. https://sam.gov/workspace/contract/opp/821defdf6cbe469b9a4e56d4ecff7256/view

## Points of contact

- Katelyn Nelson, katelyn.nelson@usda.gov, 3018378754

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/1163769.