Gill R3A-100 Sonic Anemometer

Notice Number: 145035-26-0013JRW

Notice Type: Sources Sought Synopsis

Title: Gill R3A-100 Sonic Anemometer

Response Date: June 24, 2026

This is a SOURCES SOUGHT and is not a pre-solicitation announcement. The purpose of this Market Research and Sources Sought Notice is to gain knowledge of potential qualified businesses, which could include Small Business, HUBZone, 8(a), Service Disabled Veteran Owned, Women Owned Small Business firms and even Large Businesses offering domestically manufactured products that meet the required specifications. Responses to this Sources Sought will be used by the Government in making appropriate acquisition decisions.

The National Oceanic and Atmospheric Administration (NOAA) Oceanic and Atmospheric Research (OAR), Physical Sciences Laboratory (PSL) mission by enabling precise wind measurements at the ocean surface, which are critical for forecasting, understanding air-sea interactions, and advancing marine research. Physical Sciences Laboratory (PSL) requires Gill R3A-100 sonic anemometer to maintaining the accuracy, continuity, and integrity of NOAA’s long-term sea-going flux observations. This 3-axis ultrasonic anemometer provides high-frequency wind measurements that are critical for calculating turbulent fluxes using the Eddy Covariance method; an essential component of air-sea exchange studies.

INTENDED USE/PURPOSE:

This is the only known instrument that can meet the Government’s needs, and this notice’s intent is to identify any other products that meet the full requirements listed below. These sensors are chosen for their precision, durability, and consistency, which are essential to collecting long-term, high-quality marine boundary layer datasets. The sonic anemometers are used due to its asymmetric head design, which minimizes flow distortion and improves measurement quality when mounted on the bow of research vessels. This unique geometry is critical to maintaining the fidelity of momentum, heat, and moisture flux measurements; core to air-sea interaction studies.

SPECIAL REQUIREMENTS/ESSENTIAL SALIENT FEATURES:

3-axis research anemometer

U, V, W vector outputs

100Hz output rate

Sonic temperature output

0-45 m/s wind speed

Aluminium/carbon fibre construction

0-360º wind direction

Custom calibration provided as standard

Wind Speed

Range 0 - 45 m/s

Resolution 0.01 m/s

Accuracy <1% RMS

Direction

Range 0 - 360°

Resolution 1°

Accuracy* <±1° RMS

Sound of Speed

Range 300-370 m/s

Resolution 0.01 m/s

Accuracy < ±0.5% @ 20ºC

Measurement

Ultrasonic sampling rate 100 Hz

Parameters UVW, Speed of Sound

Digital Output

Communication RS422 full duplex, 8 data bits, 1 stop bit, no parity

Baud rates 2400 - 115200

Output rate Selectable 0.4 to 100Hz

ANALOGUE INPUTS (VIA OPTIONAL SIU)

Quantity 6 differential inputs

Sampling rate 100Hz

Range and resolution ±5V, 14 bits

Accuracy <0.1% of FSR

ANALOGUE OUTPUTS (VIA SUPPLIED PCIA)

Quantity 7 (U, V, W, SoS, PRT plus 2 analogue inputs)

Sampling ±10, ±20, ±30, ±60 m/s

Update rate 0.4 to 100Hz

Range and resolution ±2.5V, 14 bits

Accuracy <0.25% of FSR

PRT INPUT

Input resolution 0.01°C

Input accuracy <0.01°C (0 to 50°C), < 0.15°C (-40°C to +60°C)

POWER REQUIREMENT

Anemometer 9-30V dc <4w (eg. <150mA @ 24V DC or 300mA @ 12V dc)

ENVIRONMENTAL

Protection Class IP65

Operating Temp -40°C to +60°C

Precipitation Operation to 300 mm per hour

EMC BS EN 50081-1: 1992 (Emissions)

BS EN 50082-1: 1992 (Immunity)

Suitable for exposure to a marine environment

DELIVERY SCHEDULE:

Deliver by August 30, 2026.

The North American Industry Classification Code (NAICS) is 334519 with a size standard of 600 Employees.

Interested firms shall provide, in writing, a brief narrative (no more than 3 pages in length) and documentation to support your firm’s capability and experience meeting the requirements herein and include your firm’s name, address, point of contact, telephone number, UEID Number, CCR CAGE Number, business type and size (i.e., small, large, non-profit, educational, etc.). Any response that does not include this information will not be considered. The Government will review your response to determine if your firm has the experience, knowledge and capability to provide the items as specified above.

This request for information does not constitute a commitment, implied or otherwise, that a procurement action will be issued. Nor does this request for information constitute a commitment, implied or otherwise, that any procurement action may be issued for the Government’s requirements.

No entitlement to payment of direct or indirect costs or charges by the Government will arise because of the submission of contractor’s information. The Government shall not be liable for or suffer any consequential damages for proprietary information not properly identified. Proprietary information will be safeguarded in accordance with the applicable Government regulations.

All contractors doing business with the Government are required to be registered and active with the System for Award Management (SAM) website.

NOTE: THIS SOURCES SOUGHT IS NOT CONSIDERED A REQUEST FOR PROPOSAL BUT A REQUEST FOR INFORMATION ONLY. No solicitation document is available. No contract will be awarded based on responses received to this notice.