2A47E-RX11-1AIndoor and Outdoor WirelessThermometer and Hygrometer

433.92MHz FCC Statement 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 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. 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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 Process LETTER 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: UGK-LVMUNITEDINC FRN: 0033476375 Contact Name: Jimmychen Address: 6547NAcademyBlvd#2266,ColoradoSprings,CO80918 Telephone No: 001-323-51 04660 Email: [email protected] Applicant: Company name: Dongguan Jinghe Electronic Technology Co., Ltd Grantee code: 2A47E FCC ID: 2A47E-RX11-1A Contact Name: Davy Wu Address: Room 301, No. 3, Hongshan 1st Street, Xin'an Community, Chang'an Town, Dongguan City Telephone: 18374731994 Fax: 18374731994 E-mail: [email protected] [Dongguan Jinghe Electronic Technology Co., Ltd] certifies that, as of the date of this filing of the application with the TCB, [UGK-LVMUNITEDINC] is our designated US agent for service of process for the above referenced FCC ID. [Dongguan Jinghe 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. [UGK-LVMUNITEDINC] 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 t o comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, an d clause § 2.911. The Applicant 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. Date: 2023/08/08 Applicant’s Name: Davy Wu US Agent’s Name: Jimmychen 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 Jinghe Electronic Technology Co., Ltd Grantee code: 2A47E FCC ID: 2A47E-RX11-1A Contact Name: Davy Wu Address: Room 301, No. 3, Hongshan 1st Street, Xin'an Community, Chang'an Town, Dongguan City Telephone: 18374731994 Fax: 18374731994 E-mail: [email protected] i. [Dongguan Jinghe 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 Jinghe 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 Jinghe 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: 2023/08/08 Applicant’s Name: Davy Wu 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 Jinghe Electronic Technology Co., Ltd Product Similarity Declaration Company: Dongguan Jinghe Electronic Technology Co., Ltd Address: Room 301, No. 3, Hongshan 1st Street, Xin'an Community, Chang'an Town, Dongguan City Product Name: Indoor and Outdoor WirelessThermometer and Hygrometer Model Number: RX11-1A, RX11-1B, RX11-1D, RX11-1F FCC Identifier: 2A47E-RX11-1A We (Dongguan Jinghe 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 and appearance color. Client’s signature Client’s name / title : Davy Wu /Manager Contact information /address: Room 301, No. 3, Hongshan 1st Street, Xin'an Community, Chang'an Town, Dongguan City Date: 2023-08-08

Dongguan Jinghe Electronic Technology Co., Ltd 1/1 Letter of Authorization Company: Dongguan Jinghe Electronic Technology Co., Ltd Address: Room 301, No. 3, Hongshan 1st Street, Xin'an Community, Chang'an Town, Dongguan City Product Name: Indoor and Outdoor WirelessThermometer and Hygrometer Model Number: RX11-1A, RX11-1B, RX11-1D, RX11-1F FCC Identifier:2A47E-RX11-1A 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: Davy Wu Date: 2023-08-08 Title: Manager Signature of applicant:

Dongguan Jinghe Electronic Technology Co., Ltd 1/1 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023-08-08 Subject: Request for Confidentiality FCC ID:2A47E-RX11-1A 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 No ☐ Internal Photos No ☐ 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. 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, Name: Davy Wu Date: 2023-08-08 Title: Manager Signature of applicant:

Size:18*12mm M/N: RX11-1A FCC ID: 2A47E-RX11-1A Label location

ANT

FCC ID: 2A47E-RX11-1A RF Exposure Evaluation According to KDB 447498 D01 V06 and part 2.1093，Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. 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 Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison EIRP=E Meas +20log(d Meas )-104.7 EIRP is the equivalent isotropically radiated power, in dBm E Meas is the field strength of the emission at the measurement distance, in dBμV/m d Meas is the measurement distance, in m Here, Field strength (dBuV/m) EIRP (dBm) Max tune-up (mW) Frequency (MHz) Min. distance(mm) Calc. thresholds limit 64.22 -30.94 0.0008 433.92 5 0.0001 3.0 So a SAR test is not required

Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20220312007E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 1 of 27 FCC Part 15C Test Report FCC ID: 2A47E-RX11-1A Applicant: Dongguan Jinghe Electronic Technology Co., Ltd Address: Room 301, No. 3, Hongshan 1st Street, Xin'an Community, Chang'an Town, Dongguan City Manufacturer: Dongguan Jinghe Electronic Technology Co., Ltd Address: Room 301, No. 3, Hongshan 1st Street, Xin'an Community, Chang'an Town, Dongguan City EUT: Indoor and Outdoor WirelessThermometer and Hygrometer Trade Mark: N/A Model Number: RX11-1A, RX11-1B, RX11-1D, RX11-1F Date of Receipt: Jul. 26, 2023 Test Date: Jul. 26, 2023 - Aug. 03, 2023 Date of Report: Aug. 03, 2023 Prepared By: Shenzhen DL Testing Technology Co., Ltd. Address: 101-201, Building C, Shuanghuan, No.8, Baoqing Road, Baolong Industrial Zone, Baolong Street, Longgang District, Shenzhen, Guangdong, China Applicable Standards: FCC PART 15 C 15.231 ANSI C63.10:2013 Test Result: Pass Report Number: DL-20220312007E Prepared (Test Engineer): Pxing Huang Reviewer (Supervisor): Jack Bu Approved (Manager): Jade Yang This test report is based on a single evaluation of one sample of above mentioned products. It is not permitted to be duplicated in extracts without written approval of Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20220312007E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 2 of 27 Table of Contents Page 1 . SUMMARY OF TEST RESULTS 4 1.1 MEASUREMENT UNCERTAINTY 4 2 . GENERAL INFORMATION 5 2.1 GENERAL DESCRIPTION OF EUT 5 2.2 DESCRIPTION OF TEST MODES 5 2.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 6 2.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 6 2.5 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 6 2.6 EQUIPMENTS LIST FOR ALL TEST ITEMS 7 3 . EMC EMISSION TEST 8 3.1 CONDUCTED EMISSION MEASUREMENT 8 3.1.1 POWER LINE CONDUCTED EMISSION LIMITS 8 3.1.2 TEST PROCEDURE 8 3.1.3 DEVIATION FROM TEST STANDARD 8 3.1.4 TEST SETUP 9 3.1.5 EUT OPERATING CONDITIONS 9 3.1.6 TEST RESULTS 9 3.2 RADIATED EMISSION MEASUREMENT 10 3.2.1 RADIATED EMISSION LIMITS 10 3.2.2 TEST PROCEDURE 11 3.2.3 DEVIATION FROM TEST STANDARD 11 3.2.4 TEST SETUP 12 3.2.5 EUT OPERATING CONDITIONS 13 3.2.6 TEST RESULTS (BETWEEN 9KHZ – 30 MHZ) 14 3.2.7 TEST RESULTS (BETWEEN 30MHZ – 1GHZ) 15 3.2.8 TEST RESULTS (1GHZ~25GHZ) 18 4 . BANDWIDTH TEST 19 4.1 APPLIED PROCEDURES / LIMIT 19 4.1.1 TEST PROCEDURE 19 4.1.2 DEVIATION FROM STANDARD 19 4.1.3 TEST SETUP 19 4.1.4 EUT OPERATION CONDITIONS 19 4.1.5 TEST RESULTS 20 5 . CALCULATION OF AVERAGE FACTOR 21 5.1 APPLIED PROCEDURES / LIMIT 21 5.1.1 TEST PROCEDURE 21 5.1.2 TEST SETUP 21 Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20220312007E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 3 of 27 Table of Contents Page 5.1.3 EUT OPERATION CONDITIONS 21 5.1.4 TEST RESULTS 22 6 . DWELL TIME 24 6.1 APPLIED PROCEDURES / LIMIT 24 6.1.1 TEST PROCEDURE 24 6.1.2 DEVIATION FROM STANDARD 24 6.1.3 TEST SETUP 24 6.1.4 EUT OPERATION CONDITIONS 24 6.1.5 TEST RESULTS 25 7 . ANTENNA REQUIREMENT 26 7.1 STANDARD REQUIREMENT 26 7.2 EUT ANTENNA 26 8 . TEST SEUUP PHOTO 27 9 . EUT PHOTO 27 Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20220312007E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 4 of 27 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.231) , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission N/A 15.209,15.231b Fundamental &Radiated Spurious Emission Measurement PASS 15.231a Dwell time PASS 15.215 20dB Bandwidth PASS 15.203 Antenna Requirement PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report. FCC Test Firm Registration Number: 854456 Designation Number: CN1307 IC Registered No.: 27485 CAB ID.: CN0118 1.1 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2,providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 Conducted Emission Test ±2.56dB 2 RF power,conducted ±0.42dB 3 Spurious emissions,conducted ±2.76dB 4 All emissions,radiated(<1G) ±3.65dB 5 All emissions,radiated(>1G) ±4.89dB 6 Temperature ±0.5°C 7 Humidity ±2% Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20220312007E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 5 of 27 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Product Name: Indoor and Outdoor WirelessThermometer and Hygrometer Trademark TOPENS Model No.: RX11-1A RX11-1B, RX11-1D, RX11-1F Model Difference The product's different for model number and appearance color. Operation Frequency: 433.92MHz Channel numbers: 1 Channels Modulation technology: ASK Antenna Type: Internal Antenna Antenna gain: 0.56dBi Power supply: DC 3V from battery Note: 1.For a more detailed features description, please refer to the manufacturer’s specifications or the User's Manual. 2.The EUT’s all information provided by client. 2.2 DESCRIPTION OF TEST MODES Note: (1) New battery is used during the test To investigate the maximum EMI emission characteristics generates from EUT, the test system was pre-scanning tested base on the consideration of following EUT operation mode or test configuration mode which possible have effect on EMI emission level. Each of these EUT operation mode(s) or test configuration mode(s) mentioned above was evaluated respectively. Pretest Mode Description Mode 1 TX Mode For Conducted & Radiated Emission Final Test Mode Description Mode 1 TX Mode Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20220312007E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 6 of 27 2.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED Radiated Spurious Emissi…

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Radiated Measurement Photos