2ATCK-TMSS4C4TPMS SENSOR

S4.3K sensor user manual S4.3K sensor is transmitting module of TPMS Product name： TPMS SENSOR Model name： TMSS4C4 The module is powered by a built-in battery. Usually this sensor is placed in a rubber container and then glued to the inner wall of the tire. The yellow frame below shows the sensor in the rubber container. Please take attention that changes or modification not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. This equipment complies with FCC/IC RSS-102 radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. ce matériel est conforme aux limites de dose d'exposition aux rayonnements, FCC / CNR-102 énoncée dans un autre environnement.cette eqipment devrait être installé et exploité avec distance minimale de 20 entre le radiateur et votre corps. This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device. l'appareil contient des émetteurs/récepteurs exempts de licence qui sont conformes aux CNR exempts de licence d’Innovation, Sciences et Développement économique Canada. L’exploitation est soumise aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

Applicant Declaration QSF27-14-04 Rev 1.0 Rev. Feb 6, 2023 Page 1 of 1 Original Issue: Jan. 4, 2021 SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name Baolong Huf Shanghai Electronics Co., Ltd. Address 1st Floor, Building 5, 5500 Shenzhuan Rd, Songjiang, Shanghai China Grantee Code 2ATCK FCC ID 2ATCK-TMSS4C4 Authorized Contact Name Howard Shi Contact Email [email protected] Contact Phone +86-21-31273333 Extension:6549 I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare; a) in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. b) in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for: (1) labeling the equipment with the exact FCC ID as specified in this application, (2) compliance statement labeling pursuant to the applicable rules, (3) compliance of the equipment with the applicable technical rules, c) if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCC’s technical requirements. d) in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. e) in accordance with ISO 17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements. (1) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. (2) the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. (3) the Applicant shall, upon request by SGS, at the Applicant’s expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f) neither the Applicant nor any party to the application is 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. §862 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a “party” for these purposes. g) the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc.(TCB) terms and conditions. Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Link to the Covered List: Covered List Baolong Huf Shanghai Electronics Co., Ltd. (“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. Baolong Huf Shanghai Electronics Co., Ltd. (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered list, established pursuant to §1.50002, as an entity producing “covered” equipment. Applicant Signature: Date:2023-2-23 Print Name: Howard Shi Title: General manager *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database

Baolong Huf Shanghai Electronics Co., Ltd. Date: 2023/2/23 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: FCC ID: 2ATCK-TMSS4C4 To whom it may concern: We, the undersigned, hereby authorize Parlam Zhan to act on our behalf in all manners relating to application for equipment authorization with respect to the FCC ID above, including signing of all documents relating to these matters. Any and all acts carried out by the agent on our behalf shall have the same effect as acts of our own. We, 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). Where our agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by SGS North America, Inc., still resides with Baolong Huf Shanghai Electronics Co., Ltd. This authorization is valid until further written notice from the applicant. Name (Printed): Howard Shi Title: General manager Signature: On behalf of Company: Baolong Huf Shanghai Electronics Co., Ltd. Telephone:+86-21-312733336549 Extension: 6549

Baolong Huf Shanghai Electronics Co., Ltd. To: SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia United States From: Company Name：Baolong Huf Shanghai Electronics Co., Ltd. Address 1st Floor, Building 5, 5500 Shenzhuan Rd, Songjiang, Shanghai China Regarding: Confidentiality Request regarding application for FCC ID: 2ATCK-TMSS4C4 LONG TERM CONFIDENTIALITY Pursuant to 47 CFR Section 0.459 and 0.457 of the commission’s rules, the applicant hereby request confidential treatment of the documents listed below, associated with the certification application referenced above. Schematic(s) Block Diagrams Operational Descriptions The documents above contain proprietary information not released to the public. Public disclosure of this information may prove harmful to the business of the applicant. Sincerely, Signature: Printed Name (on file with the FCC associated with the Grantee Code)：Howard Shi Title：General manager Company Name：Baolong Huf Shanghai Electronics Co., Ltd.

Compliance Certification Services (Kunshan) Inc. Page: 1 of 4 External Photos for KSCR2302000218AT Test Model No: TMSS4C4 Compliance Certification Services (Kunshan) Inc. Page: 2 of 4 EUT Constructional Details (EUT Photos) Compliance Certification Services (Kunshan) Inc. Page: 3 of 4 Compliance Certification Services (Kunshan) Inc. Page: 4 of 4

Compliance Certification Services (Kunshan) Inc. Page: 1 of 3 Internal Photos for KSCR2302000218AT Test Model No: TMSS4C4 Compliance Certification Services (Kunshan) Inc. Page: 2 of 3 EUT Constructional Details (EUT Photos) Compliance Certification Services (Kunshan) Inc. Page: 3 of 3

Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230200021801 Page: 1 of 30 Eric Lin Laboratory Manager TEST REPORT Application No.: KSCR2302000218AT FCC ID: 2ATCK-TMSS4C4 IC: 25126-TMSS4C4 Applicant: Baolong Huf Shanghai Electronics Co., Ltd. Address of Applicant: 1st Floor, Building 5, 5500 Shenzhuan Rd, Songjiang, Shanghai Manufacturer: Baolong Huf Shanghai Electronics Co., Ltd. Address of Manufacturer: 1st Floor, Building 5, 5500 Shenzhuan Rd, Songjiang, Shanghai Factory: Baolong Huf Shanghai Electronics Co., Ltd. Address of Factory: 1st Floor, Building 5, 5500 Shenzhuan Rd, Songjiang, Shanghai Equipment Under Test (EUT): EUT Name: TPMS SENSOR Model No.: TMSS4C4 Trade Mark: BH SENS Standard(s) : 47 CFR Part 15, Subpart C 15.231 RSS-210 issue 10 Amendment 1 RSS-Gen Issue5 Amendment 2 (February 2021) Date of Receipt: 2023-02-15 Date of Test: 2023-02-15 to 2023-03-02 Date of Issue: 2023-03-03 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230200021801 Page: 2 of 30 Revision Record Version Description Date Remark 00 Original 2023-03-03 / Authorized for issue by: Pawn.Liu/Project Engineer Eric Lin /Reviewer Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230200021801 Page: 3 of 30 2 Test Summary Radio Spectrum Technical Requirement Item FCC Requirement IC Requirement Method Result Antenna Requirement 47 CFR Part 15, Subpart C 15.203 RSS-Gen Section 8.1.3 N/A Pass N/A: Not applicable Radio Spectrum Matter Part Item FCC Requirement IC Requirement Method Result 20dB Bandwidth 47 CFR Part 15, Subpart C 15.231(c) RSS-210 A1.3 ANSI C63.10 (2020) Section 6.9 Pass Dwell Time (15.231(e)) 47 CFR Part 15, Subpart C 15.231(e) RSS-210 A1.4. ANSI C63.10 (2020) Section 7.8.4 Pass Field Strength of the Fundamental Signal (15.231(e)) 47 CFR Part 15, Subpart C 15.231(e) RSS-210 A1.4 ANSI C63.10 (2020) Section 6.5 Pass Radiated Emissions below 1GHz 47 CFR Part 15, Subpart C 15.231(e) and 15.209 RSS-210 A1.4 ANSI C63.10 (2020) Section 6.4&6.5&6.6 Pass Radiated Emissions above 1GHz 47 CFR Part 15, Subpart C 15.231(e) and 15.209 RSS-210 A1.4 ANSI C63.10 (2020) Section 6.6 Pass 99% Bandwidth N/A RSS-210 A1.3 RSS-Gen Section 6.7 Pass Frequency Stability N/A RSS-Gen Section 8.11 RSS-Gen Section 6.11 Note 1 Note 1: Frequency stability requested in RSS GEN S8.11 has been complied since the result of occupied bandwidth can demonstrate. Compliance Certification Services (Kunshan) Inc. Report No.: KSCR230200021801 Page: 4 of 30 3 Contents Page 1 COVER PAGE ..................................................................................................................................... 1 2 TEST SUMMARY ................................................................................................................................. 3 3 CONTENTS ......................................................................................................................................... 4 4 GENERAL INFORMATION .................................................................................................................. 6 4.1 DETAILS OF E.U.T. ......................................................................................................................... 6 4.2 ENVIRONMENT PARAMETER ............................................................................................................. 6 4.3 DESCRIPTION OF SUPPORT UNITS .................................................................................................... 6 4.4 MEASUREMENT UNCERTAINTY ......................................................................................................... 7 4.5 TEST LOCATION ............................................................................................................................. 8 4.6 TEST FACILITY ............................................................................................................................... 8 4.7 DEVIATION FROM STANDARDS ......................................................................................................... 8 4.8 ABNORMALITIES FROM STANDARD CONDITIONS ................................................................................. 8 5 EQUIPMENT LIST ............................................................................................................................... 9 6 RADIO SPECTRUM TECHNICAL REQUIREMENT ............................................................................11 6.1 ANTENNA REQUIREMENT ................................................................................................................11 6.1.1 Test Requirement: ..................................................................................................................11 6.1.2 Conclusion ..............................................................................................................................11 7 RADIO SPECTRUM MATTER TEST RESULTS .................................................................................12 7.1 20DB BANDWIDTH .........................................................................................................................12 7.1.1 E.U.T. Operation .....................................................................................................................12 7.1.2 Test Mode Description ............................................................................................................12 7.1.3 Test Setup Diagram ................................................................................................................12 7.1.4 Measurement Procedure and Data .........................................................................................12 7.2 DWELL TIME (15.231(E)) ...............................................................................................................13 7.2.1 E.U.T. Operation ...................…

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Justification statement for Antenna To: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: FCC ID: 2ATCK-TMSS4C4 Dear Sir/Madam, Only radiated measurements are used for EUT with FCC ID: 2ATCK-TMSS4C4 to show compliance with FCC limits for fundamental and spurious emissions. All measurements were performed radiated and therefore additional antenna gain documentation is not required. The detailed information for antenna as below shows: Design Specifications Typical Antenna Type monopole antenna Working Frequency 433.92MHz Overall Dimensions Refer to the graphic as below Unit: mm

Compliance Certification Services (Kunshan) Inc. Page: 1 of 3 Appendix Photographs of Test Setup for KSCR2302000218AT Test Model No.: TMSS4C4 Compliance Certification Services (Kunshan) Inc. Page: 2 of 3 Test Setup Photo RF Radiated Test Below 1GHz RF Radiated Test Above 1GHz Compliance Certification Services (Kunshan) Inc. Page: 3 of 3