QXS-LIBDC1Libre Duo

Hila Ralston Abbott Diabetes Care 1360 South Loop Road Alameda, CA 94502 (510) 749-5400 Date: 10/2/2025 Federal Communications Commissions Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 RE: CFR 47 §2.911 (d)(7) Agent Designation Attestation FCC ID: QXS-LIBDC1 FRN: 0008524399 To whom it may concern: Abbott Diabetes Care (“the applicant”) as required by §2.911(d)(7), will also serve as the agent for service of process for the above referenced FCC ID. The applicant acknowledges that they will maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission- related proceeding involving the equipment. The applicant further acknowledges their responsibility under CFR 47 §2.929(c) to inform the FCC whenever the agent information changes. U.S. Agent Information: Contact Person: Hila Ralston Abbott Diabetes Care 1360 S. Loop Road Alameda, CA 94502 [email protected] Sincerely yours, ________________________ Hila Ralston Abbott Diabetes Care Inc 1360 S. Loop Road, Alameda, CA 94502

Hila Ralston Abbott Diabetes Care 1360 South Loop Road Alameda, CA 94502 (510) 749-5400 Date: 10/2/2025 Federal Communications Commissions Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 RE: CFR 47 §2.911 (d)(5) Attestation FCC ID: QXS-LIBDC1 1. Abbott Diabetes Care (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. 2. Abbott Diabetes Care (“the applicant”) certifies that, as of the date of the filing of the application, the device does not have cybersecurity and / or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, identified on the Covered List installed on the device, nor will it be installed by the applicant anytime after certification. 3. Abbott Diabetes Care (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment and is not an affiliate or subsidiary of an entity identified on the Covered List. Abbott Diabetes Care

Hila Ralston Abbott Diabetes Care 1360 South Loop Road Alameda, CA 94502 (510) 749-5400 Date: 10/2/2025 Federal Communications Commission Equipment Authorization branch 7435 Oakland Mills Road Columbia, MD 21046 To whom it may concern: I, the undersigned, hereby authorize UL LLC to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by UL Verification Services Inc. on our behalf shall have the same effect as acts of our own. I, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). In authorizing UL LLC as our representative, we still recognize that we are responsible to: a) fulfill the requirements for the scope of certification requested, including implementing any appropriate changes requested by UL Verification Services Telecommunications Certification Body (TCB) and / or the FCC; b) supply any and all information needed for the evaluation of the products for which certification is sought; c) make claims regarding certification only in respect of the scope for which certification has been granted; d) not use our product certification in such a manner as to bring the TCB or FCC into disrepute and to not make any statement regarding product certification which the TCB or FCC may consider misleading or unauthorized; e) discontinue use of all advertising matter that contains any reference thereto and complies with any and all actions required by the FCC upon suspension or cancellation of certification; f) use certification only to indicate that products are certified in conformity with specified standards; g) endeavor to ensure that no certificate or report or any part thereof is used in a misleading manner, and any copies of the grants/certificates shall be reproduced in their entirety; h) comply with the requirements of the TCB and FCC, including the use of marks and label information prescribed for the scope of certification, when making reference to product certification in communication media such as documents, brochure or advertisements; i) comply with the requirements for certification, supply any information needed for evaluation of products to be certified and, where applicable, make provision for the participation of observers; j) ensure that products marketed under the scope of the requested certification continue to comply with the certification requirements; k) provide a sample of a production unit for testing within 30 days of the request should this product be selected as part of either the TCB’s or the FCC’s market surveillance requirements; l) keep a record of all complaints relating to product’s compliance with requirements of relevant standard; make records available to UL or FCC when requested; take appropriate action with respect to such complaints and any deficiencies found in the product that affect compliance with requirements for certification; document the actions taken with respect to complaints and/or deficiencies; m) inform the TCB immediately of any changes that may affect its ability to comply with the certification requirements. This authorization is valid until further written notice from the applicant. Sincerely Yours, _______________________ Hila Ralston Principal Electrical Engineer Abbott Diabetes Care

Hila Ralston Abbott Diabetes Care 1360 South Loop Road Alameda, CA 94502 (510) 749-5400 Date: 10/2/2025 Attn: FCC Office of Engineering and Technology / UL Verification Services TCB Subject: Request for Confidentiality FCC ID: QXS-LIBDC1 To Whom It May Concern: Pursuant to the provisions of Sections 0.457 and 0.459 of the Commission’s rules (47 CFR §§ 0.457, 0.459), we are requesting the Commission to withhold the following attachments as confidential document from public disclosure indefinitely. • Schematic Diagram • Block Diagram • Theory of Operation Above mentioned documents containing detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. In additional to above mentioned documents, pursuant to Public Notice DA 04-1705 of the Commission’s policy, in order to comply with the marketing regulations in 47 CFR §2.803 and the importation rules in 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices. We are requesting the commission to grant short-term confidentiality request on the following attachments until no more than 180 days after the grant date: • External Photos • Internal Photos • Test Setup Photos • User Manual It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and that information will be available for public review once the grant of equipment authorization is issued. Best Regards, ____________________ Hila Ralston Abbott Diabetes Care Inc 1360 S. Loop Road, Alameda, CA 94502

ADC Print Specications Artwork Source File:DOC52487_rev-A.pdf (source/native le in zip) Total Pages:N/A Component Specication/MSA:DOC49799 Barcode(s):UPC: XXXXXXXXXXXX / Code 128: 52487A Ink(s): CMYKPMS109CPMS432C NOTES: For the detailed information about the material, packaging and delivery, FAI and quality inspection requirements, refer to Component Specication or Material Specication Agreement (MSA). 0 00000 00000 0 52487A52487A52487A XXXXX-XX NRC XXXXX-XXXX-XX FCC ID: QXS-LIBDC1 ©2025 Abbott DOC52487 Rev. A 09/25 Open here | Open here Have questions? | Have questions? Visit FreeStyleLibre.com for more information. Visit FreeStyleLibre.com for more information. See product insert inside this package for symbol definitions. | See product insert inside this package for symbol definitions. *IBOA and MBPA skin allergens not detected. Data on file. | *IBOA and MBPA skin allergens not detected. Data on file. For use with Libre app and other compatible devices (see FreeStyleLibre.com). | For use with Libre app and other compatible devices (see FreeStyleLibre.com). While using the app, you must have access to a blood glucose meter. | While using the app, you must have access to a blood glucose meter. Tips for wearing your sensor. Scan the QR code. | Tips for wearing your sensor. Scan the QR code. Only Alcohol wipe not included Alcohol wipe not included Contents  Contents 1 sensor applicator  1 sensor applicator 1 product insert  1 product insert Actual size Actual size Continuous dual glucose ketone monitoring system | Continuous dual glucose ketone monitoring system 15 days  days Libre, the butterfly logo, the sensor shape and appearance, the color yellow, and related marks and/or designs are the intellectual property of the Abbott group of companies in various territories. Patent | Patent: Abbott. com/patents Distributed by | Distributed by: Abbott Diabetes Care Inc. 1360 South Loop Road, Alameda, CA 94502 USA 1-855-632-8658 Product of Ireland | Product of Ireland Not for resale Not for resale Open here | Open here Have questions? | Have questions? Visit FreeStyleLibre.com for more information. Visit FreeStyleLibre.com for more information. This sample is provided with no requirement or obligation. No third party reimbursement should be submitted. This sample is provided with no requirement or obligation. No third party reimbursement should be submitted. DUO Dual glucose ketone sensor Dual glucose ketone sensor FPO ----------PRINT SIDE GLUE---------- NO COATING NO INK NO COATING GLUE APPLIED FOR CARTON CLOSING NO COATING NO INK NO COATING Clear area 40 mm x 20 mm Area for UDI Placeholder for copyright date. Placeholder for NRC number. Placeholder for SKU. Include for ‘Not for resale’ carton only. Remove if produced in the US. DOC52487_rev-A.pdf 1 9/5/25 3:30 PM

FCC Part 1 Subpart I FCC Part 2 Subpart J RF EXPOSURE REPORT FOR LIBRE DUO MODEL NAME: PROJECT 44100 FCC ID: QXS-LIBDC1 REPORT NUMBER: R15379127-E2 ISSUE DATE: 2025-09-12 Prepared for ABBOTT DIABETES CARE INC. 1360 SOUTH LOOP RD ALAMEDA, CA 94502, UNITED STATES Prepared by UL LLC 12 LABORATORY DR. DURHAM, NC 27713 USA TEL: (919) 549-1400 REPORT NO: R15379127-E2 DATE: 2025-09-12 FCC ID: QXS-LIBDC1 Page 2 of 7 UL LLC FORM NO: 03-EM-F00858 12 Laboratory Dr., Durham, NC 27713 TEL: (919) 549-1400 This report shall not be reproduced except in full, without the written approval of UL LLC. . Revision History Rev. Issue Date Revisions Revised By V1 2025-09-12 Initial Issue Charles Moody REPORT NO: R15379127-E2 DATE: 2025-09-12 FCC ID: QXS-LIBDC1 Page 3 of 7 UL LLC FORM NO: 03-EM-F00858 12 Laboratory Dr., Durham, NC 27713 TEL: (919) 549-1400 This report shall not be reproduced except in full, without the written approval of UL LLC. . TABLE OF CONTENTS 1. ATTESTATION OF TEST RESULTS ..................................................................................4 2. TEST METHODOLOGY ......................................................................................................5 3. REFERENCES ....................................................................................................................5 4. FACILITIES AND ACCREDITATION ..................................................................................5 5. DECISION RULES AND MEASUREMENT UNCERTAINTY ...............................................6 5.1. METROLOGICAL TRACEABILITY ..............................................................................6 5.2. DECISION RULES ......................................................................................................6 6. DEVICE UNDER TEST ........................................................................................................6 7. STANDALONE SAR TEST EXCLUSION CONSIDERATIONS ...........................................7 7.1. FCC .............................................................................................................................7 REPORT NO: R15379127-E2 DATE: 2025-09-12 FCC ID: QXS-LIBDC1 Page 4 of 7 UL LLC FORM NO: 03-EM-F00858 12 Laboratory Dr., Durham, NC 27713 TEL: (919) 549-1400 This report shall not be reproduced except in full, without the written approval of UL LLC. . 1. ATTESTATION OF TEST RESULTS COMPANY NAME: Abbott Diabetes Care Inc. 1360 South Loop Rd Alameda, CA 94502, United States EUT DESCRIPTION: Libre Duo MODEL NAME: Project 44100 SERIAL NUMBER: E07A0403D7B22B50, E07A0403D7B22B4D SAMPLE RECEIVED DATE: 2025-08-05 DATE TESTED: 2025-08-08 APPLICABLE STANDARDS STANDARD TEST RESULTS FCC PART 1 SUBPART I & PART 2 SUBPART J Complies UL LLC tested the above equipment in accordance with the requirements set forth in the above standards. The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. The results documented in this report apply only to the tested sample, under the conditions and modes of operation as described herein. It is the manufacturer's responsibility to assure that additional production units of this model are manufactured with identical electrical and mechanical components. All samples tested were in good operating condition throughout the entire test program. Measurement Uncertainties are published for informational purposes only and were not taken into account unless noted otherwise. This document may not be altered or revised in any way unless done so by UL LLC and all revisions are duly noted in the revisions section. Any alteration of this document not carried out by UL LLC will constitute fraud and shall nullify the document. Approved & Released For UL LLC By: Prepared By: Michael Antola Charles Moody Senior Staff Engineer Lead Project Engineer Consumer, Medical and IT Segment Consumer, Medical and IT Segment UL LLC UL LLC REPORT NO: R15379127-E2 DATE: 2025-09-12 FCC ID: QXS-LIBDC1 Page 5 of 7 UL LLC FORM NO: 03-EM-F00858 12 Laboratory Dr., Durham, NC 27713 TEL: (919) 549-1400 This report shall not be reproduced except in full, without the written approval of UL LLC. . 2. TEST METHODOLOGY All calculations were made in accordance with FCC Parts 1.1310, 2.1091, 2.1093, KDB 447498 D01 v06, KDB 447498 D03 V01, IEEE Std C95.1-2005, and IEEE Std C95.3-2002. This report contains data provided by the customer which can impact the validity of results. UL LLC is only responsible for the validity of results after the integration of the data provided by the customer Client Provided Data: 1.) Declared Model Tested and Separation Distance (See section 6) 2.) Max Declared Avg. Output Power (see section 7.1) 3. REFERENCES Declared maximum average output power is based on measured power in UL Report R15379127-E1 4. FACILITIES AND ACCREDITATION UL LLC is accredited by A2LA, certification #0751.06, for all testing performed within the scope of this report. Testing was performed at the locations noted below. Address ISED CABID ISED Company Number FCC Registration ☒ Building 2800 Perimeter Park Dr. Suite B Morrisville, NC 27560, U.S.A US0067 27265 825374 ☐ Building: 12 Laboratory Dr Durham, NC 27713, U.S.A 2180C REPORT NO: R15379127-E2 DATE: 2025-09-12 FCC ID: QXS-LIBDC1 Page 6 of 7 UL LLC FORM NO: 03-EM-F00858 12 Laboratory Dr., Durham, NC 27713 TEL: (919) 549-1400 This report shall not be reproduced except in full, without the written approval of UL LLC. . 5. DECISION RULES AND MEASUREMENT UNCERTAINTY 5.1. METROLOGICAL TRACEABILITY The measuring equipment utilized to perform the tests documented in this report has been calibrated in accordance with the manufacturer's recommendations, and is traceable to recognized national standards. 5.2. DECISION RULES For all tests where the applicable U LAB <= U MAX the Decision Rule is based on Simple Acceptance in accordance with ISO Guide 98-4: 2012 Clause 8.2, where U MAX = 30% (0.3) for RF Ex…

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CETECOM Inc. 411 Dixon Landing Road  Milpitas, CA 95035  U.S.A. Phone: + 1 (408) 586 6200  Fax: + 1 (408) 586 6299  E-mail: [email protected]  http://www.cetecom.com CETECOM Inc. is a Delaware Corporation with Corporation number: 2113686 Page 1 of 39 © Copyright by CETECOM Antenna Gain Spherical Pattern Measurement. ABBOTT DIABETES CARE INC LIBRE DUO Antenna REPORT Date of Report: 2025-12-22 Date of issue: 2025-12-22 Report Copy No.: 1.0 The test results of this test report relate exclusively to the test item specified in Identification of the Equipment under Investigation. The CETECOM Inc. USA does not assume responsibility for any conclusions and generalizations drawn from the test results with regard to other specimens or samples of the type of the equipment represented by the test item. The test report may only be reproduced or published in full. Reproduction or publication of extracts from the report requires the prior written approval of the CETECOM Inc USA. CETECOM Inc. 411 Dixon Landing Road  Milpitas, CA 95035  U.S.A. Phone: + 1 (408) 586 6200  Fax: + 1 (408) 586 6299  E-mail: [email protected]  http://www.cetecom.com CETECOM Inc. is a Delaware Corporation with Corporation number: 2113686 Page 2 of 39 © Copyright by CETECOM Manufacturer Abbott Diabetes Care Inc Model Libre Duo CTIA Request # N/A Wi-Fi Alliance CID # N/A EUT ID / SN / IMEI SN: -- FCC ID Number QXS-LIBDC1 Hardware Version PRT31780-005 Rev 1 Software Version N/A Configuration of Primary Mechanical Mode N/A Test Plan Revision N/A Test date 11/13/2025 Temperature / Humidity 72.7 0 F / 47.1% Applicant’s Name: Abbott Diabetes Care Inc Address: 1360 S Loop Rd, Alameda, CA 94502 Contact Person: Hila Ralston Phone No. -- Fax: -- e-mail: -- CETECOM Inc. 411 Dixon Landing Road  Milpitas, CA 95035  U.S.A. Phone: + 1 (408) 586 6200  Fax: + 1 (408) 586 6299  E-mail: [email protected]  http://www.cetecom.com CETECOM Inc. is a Delaware Corporation with Corporation number: 2113686 Page 3 of 39 © Copyright by CETECOM EUTs used for each test EUT # EUT CATL/CHAMBER USED Radio Modes Band(s) Test Types(s) Test Conditions 1 Libre Duo CETECOM/OTA4 Passive antenna 2402 MHz 2442 MHz 2480 MHz Gain FS CETECOM Inc. 411 Dixon Landing Road  Milpitas, CA 95035  U.S.A. Phone: + 1 (408) 586 6200  Fax: + 1 (408) 586 6299  E-mail: [email protected]  http://www.cetecom.com CETECOM Inc. is a Delaware Corporation with Corporation number: 2113686 Page 4 of 39 © Copyright by CETECOM • Contents 1 SUMMATION TEST REPORT – Gain measurements .................................................................................................................................. 6 2 Physical Layout and Site Description .............................................................................................................................................................. 8 2.1 Wireless Test Facility ............................................................................................................................................................................. 8 2.2 Anechoic Rectangular Chamber ............................................................................................................................................................. 8 2.3 Phi Axis & Theta Axis Positioner ........................................................................................................................................................... 9 2.4 SAM Head Phantom / Hand Phantoms ................................................................................................................................................... 9 2.5 Quiet Zone .............................................................................................................................................................................................. 9 2.6 Howland Company Model QR-1 Quad Ridge Horn Antenna .............................................................................................................. 10 2.7 Circularly Polarized Communication Antenna ..................................................................................................................................... 10 2.8 Test Equipment ..................................................................................................................................................................................... 10 2.9 AMS32 Software .................................................................................................................................................................................. 11 3 Test Method ................................................................................................................................................................................................... 12 3.1 Total Radiated Power ............................................................................................................................................................................ 12 3.2 Total Isotropic Sensitivity ..................................................................................................................................................................... 12 4 Measurement Uncertainty OTA 4 Chamber .................................................................................................................................................. 14 4.1 TRP uncertainty standard ...................................................................................................................................................................... 14 4.2 TRP uncertainty alternate methods (worst case) .................................................................................................................................. 16 4.3 TIS uncertainty...........................................................................................................................................................................…

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TEST REPORT Report Number: R15379127-E1 Applicant : Abbott Diabetes Care Inc. 1360 South Loop Rd Alameda, CA 94502, United States Model : Project 44100 FCC ID : QXS-LIBDC1 IC : 12106A-LIBDC1 EUT Description : Libre Duo Test Standard(s) : FCC 47 CFR PART 15 SUBPART C ISED RSS-247 ISSUE 4 ISED RSS-GEN ISSUE 5 + A1 + A2 Date Of Issue: 2026-03-13 Prepared by: UL LLC 12 Laboratory Dr. Durham, NC 27713 U.S.A. TEL: (919) 549-1400 REPORT NO: R15379127-E1 DATE: 2026-03-13 FCC ID: QXS-LIBDC1 IC: 12106A-LIBDC1 Page 2 of 39 UL LLC 12 Laboratory Dr, Durham, NC 27713; USA TEL:(919) 549-1400 This report shall not be reproduced except in full, without the written approval of UL LLC REPORT REVISION HISTORY Rev. Issue Date Revisions Revised By V1 2025-08-29 Initial Issue Charles Moody V2 2025-09-12 Editorial Revisions Charles Moody V3 2026-01-06 Revised Antenna Gain Charles Moody V4 2026-03-13 Updated Antenna Gain Chandler Stanley REPORT NO: R15379127-E1 DATE: 2026-03-13 FCC ID: QXS-LIBDC1 IC: 12106A-LIBDC1 Page 3 of 39 UL LLC 12 Laboratory Dr, Durham, NC 27713; USA TEL:(919) 549-1400 This report shall not be reproduced except in full, without the written approval of UL LLC TABLE OF CONTENTS REPORT REVISION HISTORY ............................................................................................ 2 TABLE OF CONTENTS ....................................................................................................... 3 1. ATTESTATION OF TEST RESULTS ............................................................................ 5 2. TEST RESULTS SUMMARY ......................................................................................... 6 3. TEST METHODOLOGY ................................................................................................ 6 4. FACILITIES AND ACCREDITATION ............................................................................ 6 5. DECISION RULES AND MEASUREMENT UNCERTAINTY ......................................... 7 5.1. METROLOGICAL TRACEABILITY ........................................................................ 7 5.2. DECISION RULES ................................................................................................ 7 5.3. MEASUREMENT UNCERTAINTY ......................................................................... 7 5.4. SAMPLE CALCULATION ...................................................................................... 7 6. EQUIPMENT UNDER TEST .......................................................................................... 8 6.1. EUT DESCRIPTION .............................................................................................. 8 6.2. MAXIMUM OUTPUT POWER ............................................................................... 8 6.3. DESCRIPTION OF AVAILABLE ANTENNAS ........................................................ 8 6.4. SOFTWARE AND FIRMWARE ............................................................................. 8 6.5. WORST-CASE CONFIGURATION AND MODE .................................................... 8 6.6. DESCRIPTION OF TEST SETUP ......................................................................... 9 7. MEASUREMENT METHOD......................................................................................... 10 8. TEST AND MEASUREMENT EQUIPMENT ................................................................ 11 9. ANTENNA PORT TEST RESULTS ............................................................................. 13 9.1. ON TIME AND DUTY CYCLE .............................................................................. 13 9.2. 99% BANDWIDTH ............................................................................................... 14 9.2.1. BLE (1Mbps) ................................................................................................ 14 9.3. 6 dB BANDWIDTH .............................................................................................. 15 9.3.1. BLE (1Mbps) ................................................................................................ 15 9.4. OUTPUT POWER ............................................................................................... 16 9.4.1. BLE (1Mbps) ................................................................................................ 16 9.5. AVERAGE POWER ............................................................................................. 17 9.5.1. BLE (1Mbps) ................................................................................................ 17 9.6. POWER SPECTRAL DENSITY ........................................................................... 18 9.6.1. BLE (1Mbps) ................................................................................................ 18 9.7. CONDUCTED SPURIOUS EMISSIONS .............................................................. 19 9.7.1. BLE (1Mbps) ................................................................................................ 20 10. RADIATED TEST RESULTS .................................................................................. 21 REPORT NO: R15379127-E1 DATE: 2026-03-13 FCC ID: QXS-LIBDC1 IC: 12106A-LIBDC1 Page 4 of 39 UL LLC 12 Laboratory Dr, Durham, NC 27713; USA TEL:(919) 549-1400 This report shall not be reproduced except in full, without the written approval of UL LLC 10.1. LIMITS AND PROCEDURE ................................................................................. 21 10.2. TRANSMITTER ABOVE 1 GHz ........................................................................... 23 10.2.1. BLE (1Mbps) ................................................................................................ 23 10.3. WORST CASE BELOW 30MHZ .......................................................................... 33 10.4. WORST CASE BELOW 1 GHZ ........................................................................... 35 10.5. WORST CASE 18-26 GHZ .........................................................…

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