VZ43604N3Doran TPMS Sensor for Truck

< DORAN MFG, LLC > < DORAN MFG, LLC > < 4362 Glendale Milford Rd, Cincinnati OH 45242 United States > Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA <2025-11-26> Attestation Statement according to 2.911(d)(5)(i) and 2.911(d)(5)(ii) FCC ID: < VZ43604N3> TO WHOM IT MAY CONCERN: Hereby we certify 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. Further we certify that, as of the date of the filing of the application, < Doran Manufacturing, LLC > is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, _______________ (signature & company stamp) < Doran Manufacturing, LLC > <0017376450> < 4362 Glendale Milford Road, Cincinnati OH 45242 United States > < Kevin Shen > < +1-866-816-7233> < [email protected] >

< DORAN MFG, LLC > < DORAN MFG, LLC > < 4362 Glendale Milford Rd, Cincinnati OH 45242 United States > Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA <2025-11-26> Attestation Statement according to 2.911(d)(7) FCC ID: < VZ43604N3> TO WHOM IT MAY CONCERN: We, < DORAN MFG, LLC > designate < DORAN MFG, LLC >, to act as U.S. agent for service of process. < DORAN MFG, LLC > hereby acknowledges the obligation of the U.S. agent for service of process. Further < DORAN MFG, LLC > accepts to 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. Sincerely _______________ (signature & company stamp) < DORAN MFG, LLC > <0017376450> < 4362 Glendale Milford Road, Cincinnati OH 45242 United States > < Kevin Shen > < +1-866-816-7233> < [email protected] >

DATE : 2025/11/26 DORAN MFG, LLC 4362 Glendale Milford Rd, Cincinnati OH 45242 United States Attn: Director of Certification Authority to Act as Agent On our behalf, I appoint below company and person: Name Leon Wu Position Lab Director Company Name Suzhou Dongdian Testing Service Co., Ltd. Address Phase Il, No.16 Runsheng Road, Suzhou Industrial Park, Suzhou, People’s Republic of China. Tel / Fax Tel: +86-0512-62531270 E-Mail [email protected] to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized 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 cetecom advanced GmbH, still resides with: Applicant name DORAN MFG, LLC Address 4362 Glendale Milford Rd, Cincinnati OH 45242 United States Yours sincerely, Signatory Name Kevin Shen Position VP of Product Development Company Name DORAN MFG, LLC Address 4362 Glendale Milford Rd, Cincinnati OH 45242 United States Tel / Fax +1-866-816-7233 E-Mail [email protected]

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 <2025-11-26> TO WHOM IT MAY CONCERN Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b) (4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name VZ43604N3 3602, 3603, 3604, 3604AG For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Description The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device, which is planned for <2026-05-25> If you have any questions, please feel free to contact me at the address shown below. Sincerely, (Signed) Name / Title: Kevin Shen / VP of Product Development Company: DORAN MFG, LLC Address: 4362 Glendale Milford Rd, Cincinnati OH 45242 United States Phone: +1-866-816-7233 Fax: N/A E-Mail: [email protected]

DORAN MFG, LLC. Declaration letter For our business issue and marketing requirement, we would like to list different model numbers as following: Model No.: 3602,3603,3604,3604-AG Model Difference: The PCB Layout and electrical characteristics of the models are the same, only the shell size, valve aperture and marking pattern are different. _________________ Name: Kevin Shen Title: VP of Product Development Email: [email protected] Date: 2025-11-26

Model:3602 HVIN:3602N3 FCC ID:VZ43604N3 IC:12007A-3604N3 Model:3604 HVIN:3604N3 FCC ID:VZ43604N3 IC:12007A-3604N3 Model:3603 HVIN:3603N3 FCC ID:VZ43604N3 IC:12007A-3604N3 Model:3604AG HVIN:3604AGN3 FCC ID:VZ43604N3 IC:12007A-3604N3

Suzhou Dongdian Testing Service Co., Ltd. Report No.: DDT-B25052216-5E02 QR-4(SUZ)-106-E55 RevA1 Page 1 of 7 RF EXPOSURE REPORT Report No.: DDT-B25052216-5E02 Applicant : DORAN MFG, LLC Applicant Address : 4362 Glendale Milford Rd, Cincinnati OH 45242 United States Equipment Under Test : Doran TPMS Sensor for Truck Model No. : 3602, 3603, 3604, 3604AG Trade Mark : FCC ID : VZ43604N3 Manufacturer : DORAN MFG, LLC Manufacturer Address : 4362 Glendale Milford Rd, Cincinnati OH 45242 United States Issued By : Suzhou Dongdian Testing Service Co., Ltd. Address : Phase Il, No.16 Runsheng Road, Suzhou Industrial Park, Suzhou, People’s Republic of China Tel: +86-0512-62531270, E-mail: [email protected], http://www.ddttest.com Suzhou Dongdian Testing Service Co., Ltd. Report No.: DDT-B25052216-5E02 QR-4(SUZ)-106-E55 RevA1 Page 2 of 7 Table of Contents 1. General information ........................................................................................................ 5 1.1. Description of Equipment ............................................................................................... 5 1.2. Assess laboratory ........................................................................................................... 5 2. RF Exposure Evaluation ................................................................................................ 7 2.1. Requirement ................................................................................................................... 7 2.2. Estimation result ............................................................................................................. 7 Suzhou Dongdian Testing Service Co., Ltd. Report No.: DDT-B25052216-5E02 QR-4(SUZ)-106-E55 RevA1 Page 3 of 7 Test Report Declare Standard Used: KDB447498 D04 Interim General RF Exposure Guidance v01 We Declare: The equipment described above is tested by Suzhou Dongdian Testing Service Co.,Ltd and in the configuration tested the equipment complied with the standards specified above. The test results are contained in this test report and Suzhou Dongdian Testing Service Co.,Ltd is assumed of full responsibility for the accuracy and completeness of these tests. After test and evaluation, our opinion is that the equipment provided for test compliance with the requirement of the above FCC standards. Report No: DDT-B25052216-5E02 Sample No: Y25032216-06 Date of Receipt: Jun. 03, 2025 Date of Test: Jun. 04, 2025 ~ Jun. 10, 2025 Prepared By: Reviewed By: Authorized By: Bacon Dong/Engineer Vane Xia/Director Leon Wu/Director Note: This report applies to above tested sample only. This report shall not be reproduced in parts without written approval of Suzhou Dongdian Testing Service Co.,Ltd. The results reported herein have been performed in accordance with the laboratory’s terms of accreditation. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report apply to the test sample(s) mentioned above at the time of the testing period only and are not to be used to indicate applicability to other similar products. This report does not imply that the product(s) has met the criteria for certification. Applicant : DORAN MFG, LLC Address : 4362 Glendale Milford Rd, Cincinnati OH 45242 United States Equipment under Test : Doran TPMS Sensor for Truck Model No. : 3602, 3603, 3604, 3604AG Trade Mark : FCC ID : VZ43604N3 Manufacturer : DORAN MFG, LLC Address : 4362 Glendale Milford Rd, Cincinnati OH 45242 United States Suzhou Dongdian Testing Service Co., Ltd. Report No.: DDT-B25052216-5E02 QR-4(SUZ)-106-E55 RevA1 Page 4 of 7 Revision History Rev. Revisions Issue Date Revised By --- Initial issue Aug. 04, 2025 Suzhou Dongdian Testing Service Co., Ltd. Report No.: DDT-B25052216-5E02 QR-4(SUZ)-106-E55 RevA1 Page 5 of 7 1. General information 1.1. Description of Equipment EUT Description : Doran TPMS Sensor for Truck Model Number : 3602, 3603, 3604, 3604AG Serial Number : N/A Hardware Version : V1.0 Software Version : N/A Sample Type : Vehicle Device EUT function description : Please refer to user manual of this device Power supply : 3Vdc (internal CR2450HR) Support Frequency : 434.1MHz Max. Power : 70.62dBμV/m@3m (Test result) Max. EIRP : -24.64dBm/ 0.003436 (mW) (Calculate result) Conducted Power -4.13 dBm (Measured values) Type of Modulation : FSK Antenna Type : PCB antenna Note: EIRP(W)=(E1*d) 2 /30 EIRP(dBm)=10log 10 (EIRP(W))+30=E2+20log(d)-104.8 E1: Electric field strength in V/m E2: Electric field strength in dBμV/m d: measurement distance in m 1.2. Assess laboratory Lab Information Company Name: Suzhou Dongdian Testing Service Co.,Ltd. Address: Phase Il, No.16 Runsheng Road, Suzhou Industrial Park, Suzhou, People’s Republic of China. Tel: +86-0512-62531270, E-mail: [email protected], http://www.ddttest.com Accreditation Certificate A2LA (Certificate No.: 7346.01) Suzhou Dongdian Testing Service Co.,Ltd. has been assessed and proved to be in compliance with A2LA. FCC (FCC Designation No.: CN1397) Suzhou Dongdian Testing Service Co.,Ltd. has been recognized to perform compliance testing on equipment subject to the Commission's Declaration of Conformity (DoC) and Certification rules. IC (IC Designation No.: 32952; CAB No.:CN0182) Suzhou Dongdian Testing Service Co.,Ltd. has been recognized to perform compliance testing on equipment subject to the Commission's Declaration of Conformity (DoC) and Certification rules. Note 1: All tests measurement facilities use to collect the measurement data are located at Phase II, No.16 Runsheng Road, Suzhou Industrial Park, Suzhou, China. Note 2: For below 30MHz, lab had performed measurements at test anechoic chamber and comparing to measurements obtained on an open field site. These measurements below 30MHz had been correlated to measurements performed on an OFS. Suzhou Dongdian Testing Service Co., Ltd. Report No.: DDT-B25052216-5E02 QR-4(SUZ)-106-E55 RevA1 Page 6 of 7 Note 3: The test anecho…

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Name and address of the antenna manufacturer: Shanghai Shuangsheng Yingzhan Industrial Co., LTD., Building 3, No. 2640 Tingfeng Road, Zhujing Town, Jinshan District, Shanghai Model number of the antenna: 3.SATA6TP723S002 Operating Temperature : −40 °C~ 120 °C Frequency Range:300MHz~500MHz Antenna Peak Gain：0dBi(Max @433MHz),As shown in the picture NO.1 Antenna material：FR-4 Antenna thickness：1.6mm Antenna copper thickness：45um Antenna size:：As shown in the picture NO.2 Picture NO. 1 Picture NO. 2 Antenna Return loss: As shown in the picture NO. 3 picture NO.3

Suzhou Dongdian Testing Service Co., Ltd. Report No.: DDT-B25052216-5E01 QR-4(SUZ)-106-E67 RevA1 Page 1 of 40 RF TEST REPORT Report No.: DDT-B25052216-5E01 Applicant : DORAN MFG, LLC Applicant Address : 4362 Glendale Milford Rd, Cincinnati OH 45242 United States Equipment Under Test : Doran TPMS Sensor for Truck Model No. : 3602, 3603, 3604, 3604AG Series Model No. : N/A Trade Mark : FCC ID : VZ43604N3 IC : 12007A-3604N3 Manufacturer : DORAN MFG, LLC Manufacturer Address : 4362 Glendale Milford Rd, Cincinnati OH 45242 United States Issued By : Suzhou Dongdian Testing Service Co., Ltd. Address : Phase Il, No.16 Runsheng Road, Suzhou Industrial Park, Suzhou, People’s Republic of China Tel: +86-0512-62531270, E-mail: [email protected], http://www.ddttest.com Suzhou Dongdian Testing Service Co., Ltd. Report No.: DDT-B25052216-5E01 QR-4(SUZ)-106-E67 RevA1 Page 2 of 40 Table of Contents 1. Summary of Test Results ............................................................................................... 7 1.1. Summary of test result ................................................................................................... 7 2. General Test Information ............................................................................................... 8 2.1. Description of EUT ......................................................................................................... 8 2.2. Accessories of EUT ........................................................................................................ 8 2.3. Assistant equipment used for test .................................................................................. 8 2.4. Block diagram of EUT configuration for test .................................................................. 8 2.5. Test environment conditions .......................................................................................... 9 2.6. Test laboratory ............................................................................................................... 9 3. Test Configuration ........................................................................................................ 10 3.1. Test Mode .................................................................................................................... 10 4. Equipment Used During Test ....................................................................................... 11 5. Measurement uncertainty ............................................................................................. 12 6. Antenna requirement .................................................................................................... 13 6.1. Regulation .................................................................................................................... 13 6.2. Result ........................................................................................................................... 13 7. Restricted bands of Operation ..................................................................................... 14 7.1. Regulation .................................................................................................................... 14 8. Radiated Spurious Emission ........................................................................................ 17 8.1. Regulation limit ............................................................................................................. 17 8.2. Block diagram of test setup .......................................................................................... 19 8.3. Test procedure ............................................................................................................. 21 8.4. Test result ..................................................................................................................... 23 9. Periodic operation characteristics ................................................................................ 28 9.1. Regulation .................................................................................................................... 28 9.2. Result ........................................................................................................................... 28 10. Fundamental frequencies/Field strength ..................................................................... 30 10.1. Regulation limit ............................................................................................................. 30 10.2. Block diagram of test setup .......................................................................................... 30 10.3. Test procedure ............................................................................................................. 30 10.4. Test result ..................................................................................................................... 33 11. Bandwidth(20dB) .......................................................................................................... 35 11.1. Regulation .................................................................................................................... 35 11.2. Calculation of the 20dB bandwidth limit ....................................................................... 35 11.3. Test Procedure ............................................................................................................. 35 11.4. Test result ..................................................................................................................... 36 Suzhou Dongdian Testing Service Co., Ltd. Report No.: DDT-B25052216-5E01 QR-4(SUZ)-106-E67 RevA1 Page 3 of 40 12. Bandwidth(99%) ........................................................................................................... 38 12.1. Regulation .................................................................................................................... 38 12.2. Calculation of the 99% bandwidth limit…

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