2AZUG-BJ602BWireless Transmitter

1 BJ602B Wireless Transmitter 2 1 Red pilot light 2 Sliding switch 1 2 3: Set sensor number (transmission channel) 3 switch button: CF 4 Battery compartment 5 Loop for hanging 1. Remove the battery compartment cover on the front of the wireless sensor. 2. Insert 2 LR6 (AA) / 1.5 V batteries (not included) facing in the direction indicated on the bottom of the battery compartment. Make sure that the poles of the batteries are correct (+/-). As soon as the wireless sensor is receiving power, the red pilot light will light up and thus display that data is being transmitted to the base unit. 3. Put the battery compartment cover back in place. - Do not use batteries that have a voltage that is too low (only 1.2 V instead of 1.5 V). This affects the accuracy of the measurements, among other things. - If possible, use alkaline batteries instead of zinc-carbon 3 batteries. Alkaline batteries last longer, particularly outside in low temperatures. 4.FCC STATEMENT 1）. 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. 2）. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio 4 communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/ TV technician for help. FCC Radiation Exposure Statement: The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

1/1 US Agent for Service of ProcessLETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: CLF Import and Export Limited Contact Name:David Chen FRN: 0033489683 Address: 1312 17th Street #692,Denver,CO 80202,Unite States Telephone No: (949)254-2565 Email: [email protected] EIN:98-1720547 Applicant: Company name: Dongguan Beijia Electronic Technology Co., Ltd Product Description: Wireless Transmitter Grantee code: 2AZUG FCC ID: 2AZUG-BJ602B FRN:0030903124 Contact Name: Jason Wang Add ress:Room 301, 3rd to 4th floors, No. 102 Yanwu Road, Dalingshan Town, Dongguan City, Guangdong Province Telephone No:+86-769-82586231 Email:[email protected] [Dongguan Beijia Electronic Technology Co., Ltd] certifies that, as of the date of this filing of the application with the TCB, [CLF Import and Export Limited] is our designated US agent for service of process for the above referenced FCC ID. [Dongguan Beijia Electronic Technology Co., Ltd] 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 equipment. [ CLF Import and Export Limited] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicantis aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2024/8/14 Applicant’s Name: Jason Wang US Agent’s Name: David Chen Title:Manager Title: Manager Signature Signature

C5266091_X24_Ed.2 1/1 “Attestation Statements” TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: Dongguan Beijia Electronic Technology Co., Ltd Product Description: Wireless Transmitter Grantee code: 2AZUG FCC ID: 2AZUG-BJ602B Contact Name: Jason Wang Address: Room 301, 3rd to 4th floors, No. 102 Yanwu Road, Dalingshan Town, Dongguan City, Guangdong Province Telephone No: +86-769-82586231 Fax No: +86-769-82586231 Email: [email protected] i. [Dongguan Beijia Electronic Technology 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. The applicant must sign this certification. ii. [Dongguan Beijia Electronic Technology Co., Ltd ] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. The applicant must sign this certification. [Dongguan Beijia Electronic Technology 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 as an entity producing “covered” equipment . Date: 2024/8/14 Applicant’s Name: Jason Wang Title: Manager Signature 1 The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist

Dongguan Beijia Electronic Technology Co., Ltd Product Similarity Declaration Product name: Wireless Transmitter Model name: BJ602B, H2T2, CR02 FCC ID: 2AZUG-BJ602B We (Dongguan Beijia Electronic Technology Co., Ltd) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), , the only difference is the model name. Signature: Name: Jason Wang Address: Room 301, 3rd to 4th floors, No. 102 Yanwu Road, Dalingshan Town, Dongguan City, Guangdong Province

C5266091_X8_Ed.1 1/1 Letter of Authorization Company: Dongguan Beijia Electronic Technology Co., Ltd Address: Room 301, 3rd to 4th floors, No. 102 Yanwu Road, Dalingshan Town, Dongguan City, Guangdong Province Product Name: Wireless Transmitter Model Number: BJ602B, H2T2, CR02 FCC Identifier: 2AZUG-BJ602B We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Jason Wang 2024-8-14 Title: Manager Signature of applicant:

C5266091_X10_Ed.2 1/1 Dongguan Beijia Electronic Technology Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2024-8-14 Subject: Request for Confidentiality FCC ID: 2AZUG-BJ602B To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☐ Internal Photos ☐ NOTE 1 ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains 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 case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of ______ days from the date of the Grant of Equipment Authorization and prior to marketing. 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 those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Jason Wang Title: Manager

Shenzhen QC Testing Laboratory Co., Ltd. Page 1 of5 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 www.qctest.com.cn Product Name: Wi r e l e s s Tr a n s m i t t e r Test Model No.: BJ602B EUT Constructional Details Shenzhen QC Testing Laboratory Co., Ltd. Page 2 of5 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 www.qctest.com.cn Shenzhen QC Testing Laboratory Co., Ltd. Page 3 of5 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 www.qctest.com.cn Shenzhen QC Testing Laboratory Co., Ltd. Page 4 of5 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 www.qctest.com.cn Shenzhen QC Testing Laboratory Co., Ltd. Page 5 of5 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 www.qctest.com.cn ------End------

Shenzhen QC Testing Laboratory Co., Ltd. Page 1 of4 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 www.qctest.com.cn Product Name: Wi r e l e s s Tr a n s m i t t e r Test Model No.: BJ602B EUT Constructional Details Shenzhen QC Testing Laboratory Co., Ltd. Page 2 of4 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 www.qctest.com.cn Shenzhen QC Testing Laboratory Co., Ltd. Page 3 of4 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 www.qctest.com.cn Shenzhen QC Testing Laboratory Co., Ltd. Page 4 of4 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 www.qctest.com.cn -----End------ Antenna

Shenzhen QC Testing Laboratory Co., Ltd. FCC ID: 2AZUG-BJ602B 1. Limit for Portable Equipment Exposure Frequency 1-g SAR 100MHz-6GHz 3.0 According to KDB 447498 D01 General RF Exposure Guidance v06 and part 2.1093 For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR, and ≤ 7.5 for 10-g extremity SAR, where f(GHz) is the RF channel transmit frequency in GHz 2. Estimation Result Frequency (MHz) PK Output Power(dBm) Output Power(mW) Test Separation Distance (mm) Measurement Result 1-g SAR 433.92 -16.42 0.023 5 0.0030 3.0 Note: 1. use the maximum E-field strength(78.78dBuV/m) for the RF exposure evaluation 2. E(dBuV/m)=EIRP(dBm)-95.2 for distance 3m so the EIRP=78.78uV/m-95.2=-16.42dBm So a SAR test is not required ------The End------

Shenzhen QC Testing Laboratory Co., Ltd. Report No.: QCT24GR-1877E-01 Page 1 of 20 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 www.qctest.com.cn FCC PART 15.231 TEST REPORT On Behalf of Dongguan Beijia Electronic Technology Co., Ltd Room 301, 3rd to 4th floors, No. 102 Yanwu Road, Dalingshan Town, Dongguan City, Guangdong Province August 13, 2024 T his Repo rt Co nc erns: Original Report Equip men t T ype: Wireless Transmitter Test Engineer: LBi Li/ Report Number: QCT24GR-1877E-01 Test Date: July 23, 2024 ~ August 13, 2024 Reviewed By: Gordon Tan/ Approved By: Kendy Wang / Prepared By: Shenzhen QC Testing Laboratory Co., Ltd. East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 FCC ID: 2AZUG-BJ602B Model: BJ602B, H2T2, CR02 Shenzhen QC Testing Laboratory Co., Ltd. Report No.: QCT24GR-1877E-01 Page 2 of 20 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 www.qctest.com.cn Table of Contents 1. GENERAL INFORMATION ................................................................................................. 4 1.1 Product Description for Equipment under Test (EUT) ............................................................4 1.2 System Test Configuration .....................................................................................................4 1.3 Test Facility ............................................................................................................................5 1.4 Measurement Uncertainty ......................................................................................................5 2. SUMMARY OF TEST RESULTS ........................................................................................ 6 3. LIST OF TEST AND MEASUREMENT INSTRUMENTS .................................................... 7 3.1 Radiated Emission Test .........................................................................................................7 3.2 RF Conducted test .................................................................................................................7 4. ANTENNA REQUIREMENT ................................................................................................ 8 5. RADIATED EMISSION METHOD ....................................................................................... 9 5.1 Applicable Standard ...............................................................................................................9 5.2 Limit .......................................................................................................................................9 5.3 Receiver setup ..................................................................................................................... 10 5.4 Test setup ............................................................................................................................ 10 5.5 Test Procedure .................................................................................................................... 11 5.6 Test Data ............................................................................................................................. 11 6. 20DB OCCUPY BANDWIDTH .......................................................................................... 15 6.1 Applicable Standard ............................................................................................................. 15 6.2 Limit ..................................................................................................................................... 15 6.3 Test setup ............................................................................................................................ 15 6.4 Test Data ............................................................................................................................. 15 7. DWELL TIME .................................................................................................................... 17 7.1 Applicable Standard ............................................................................................................. 17 7.2 Limit ..................................................................................................................................... 17 7.3 Test setup ............................................................................................................................ 17 7.4 Test Data ............................................................................................................................. 17 8. DUTY CYCLE .................................................................................................................... 18 8.1 Applicable Standard ............................................................................................................. 18 8.2 Limit ..................................................................................................................................... 18 8.3 Test setup ............................................................................................................................ 18 8.4 Test Procedure .................................................................................................................... 18 8.5 Test Data ............................................................................................................................. 18 Shenzhen QC Testing Laboratory Co., Ltd. Report No.: QCT24GR-1877E-01 Page 3 of 20 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenz…

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Antenna Model: KAR1-A1 Dongguan Mingzhi spring factory No.449, Chonghuan East Road, Shijie Town, Dongguan City, Guangdong Province

Shenzhen QC Testing Laboratory Co., Ltd. Page 1 of 2 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 www.qctest.com.cn Product Name: Wi r e l e s s Tr a n s m i t t e r Test Model No.: BJ602B Photograph of Test Setup Radiated Emissions (30 MHz - 1 GHz) Shenzhen QC Testing Laboratory Co., Ltd. Page 2 of 2 Address: East of 1/F., Building E, Xinghong Science Park, No.111, Shuiku Road, Fenghuanggang, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Tel: 0755-23008269 Fax: 0755-23726780 www.qctest.com.cn Radiated Emissions (Above 1 GHz)