2A3UM-RE500Smart Controller

Qingdao RONCO Mechanic Electronic Technology Co., Ltd. No.43 Yanqing Rd, Huanxiu Sub-District, Jimo District, Qingdao, Shandong,N/A China Date: 03-15-2023 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Ref: Attestation Statements Part 2.911(d)(5)(i) and Part 2.911(d)(5)(ii) Filing Re. KDB 986446 D01 FCC ID: 2A3UM-RE500 Dear Sir or Madam, [Qingdao RONCO Mechanic 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. We also certify that, [Qingdao RONCO Mechanic 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 a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment . If you have any questions, please contact us. Sincerely, Signature: Company Officer Cunlei Cui Telephone Number +86 0532-88595298 Email [email protected]

Qingdao Ronco Mechanic Electronic Technology Co.,Ltd No.43 Yanqing Road, Huanxiu Sub-district, Jimo, Qingdao, Shandong, China Date: 4/10/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2A3UM-RE500 US Agent – Attestation Statement / Part 2.911(d)(7) Qingdao Ronco Mechanic Electronic Technology Co.,Ltd certifies, that as of 4/10/2023, we have designated FCC US Agent, LLC to accept service of process on our behalf for FCC ID: 2A3UM- RE500 Qingdao Ronco Mechanic Electronic Technology Co., Ltd, accepts to maintain an agent of service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. FCC US Agent, LLC, accepts as of the date of the filing of this application, the obligation of being the designated agent for the purpose of accepting service of process on behalf of Qingdao Ronco Mechanic Electronic Technology Co.,Ltd for FCC ID: 2A3UM-RE500 Designated Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: [email protected] Sincerely, Company: Qingdao Ronco Mechanic Electronic Technology Co., Ltd Designated Agent: FCC US Agent, LLC Company Representative: Cunlei Cui Designated Agent Representative: Tim Payne Signature: Signature:

Qingdao RONCO Mechanic Electronic Technology Co., Ltd. No.43 Yanqing Rd, Huanxiu Sub-District, Jimo District, Qingdao, Shandong,N/A China Date (12/10/2023) TUV SUD BABT UNLIMTED (TCB) Octagon House, Concorde Way Segensworth North, Fareham, Hampshire, PO15 5RL Dear Sir or Madam, We, Qingdao RONCO Mechanic Electronic Technology Co., Ltd. No.43 Yanqing Rd, Huanxiu Sub-District, Jimo District, Qingdao, Shandong, N/A China, hereby authorize Xu Jiaxi at TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch to act as our agent in all matters relating to applications for equipment authorization, including the signing of all documents relating to these matters. This authorization expires on March 31st, 2024. Sincerely, Signature: Company Officer Cunlei Cui Telephone Number +86 0532-88595298 Email [email protected]

Qingdao RONCO Mechanic Electronic Technology Co., Ltd. No.43 Yanqing Rd, Huanxiu Sub-District, Jimo District, Qingdao, Shandong,N/A China Date (12/10/2023) TUV SUD BABT UNLIMITED (TCB) Octagon House, Concorde Way Segensworth North, Fareham, Hampshire, PO15 5RL Confidentiality Request FCC ID: 2A3UM-RE500 Pursuant to FCC 47 CFR 0.457(d)(1)(ii) and FCC 47 CFR 0.459 of the Commission’s Rules, Qingdao RONCO Mechanic Electronic Technology Co., Ltd. hereby requests permanent confidential treatment of information accompanying this application as outlined below: Schematics Block Diagrams Theory of Operation Qingdao RONCO Mechanic Electronic Technology Co., Ltd. also hereby requests short-term confidential treatment of information accompanying this application as outlined below for a period of 180 days: Internal Photos External Photos User Manual Test Set-up Photographs The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to FCC 47 CFR 0.457(d)(1)(ii), disclosure of this Application and all accompanying materials will not be made before the date of the Grant for this Application. Yours sincerely, Signature: Company Officer Cunlei Cui Telephone Number +86 0532-88595298 Email [email protected]

Declaration The product uses a certified WiFi&Bluetooth module,Below is the relevantcertification information： FCC ID: 2ANDL-CBU approve date: 2020.12.31 IC: 23243-CBU approve date: 2021-08-06 Name of Grantee：Hangzhou Tuya Information Technology Co.,Ltd Equipment Class：Digital Transmission System Notes：WiFi-Bluetooth Module Modular Type：Single Modular Qingdao RONCO Mechanic Electronic Technology Co., Ltd. No.43 Yanqing Rd, Huanxiu Sub-District, Jimo District, Qingdao, Shandong,N/A China Signature: Company Officer Cunlei Cui Telephone Number +86 0532-88595298 Email [email protected]

Report No: 709502301261-00B EMC_SHA_F_R_02.06E TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch 3-13, No.151, Heng Tong Road, Shanghai, 200070, P.R. China Phone: +86 21 61410123, Fax:+86 21 61408600 Page 1 of 4 Rev. 23.00 RF Exposure Estimation 1. Introduction Applicant: Qingdao RONCO Mechanic Electronic Technology Co., Ltd. Address: No.43 Yanqing Rd, Huanxiu Sub-District, Jimo District Qingdao, Shandong, China Product: Smart Controller FCC ID: 2A3UM-RE500 IC: 30162-RE500 Model No.: RE500 Reference RF report # 709502301261-00A Contains Transmitter module FCC ID: 2ANDL-CBU, approve date: 2020-12-31 IC: 23243-CBU, approve date: 2021-08-06 2. B.2 Blanket 1 mW Blanket Exemption The 1 mW Blanket Exemption of § 1.1307(b)(3)(i)(A) applies for single fixed, mobile, and portable RF sources with available maximum time-averaged power of no more than 1 mW, regardless of separation distance. The 1 mW blanket exemption applies at separation distances less than 0.5 cm, including where there is no separation. This exemption shall not be used in conjunction with other exemption criteria other than those for multiple RF sources in paragraph § 1.1307(b)(3)(ii)(A). The 1 mW exemption is independent of service type and covers the full range of 100 kHz to 100 GHz, but it shall not be used in conjunction with other exemption criteria or in devices with higher-power transmitters operating in the same time-averaging period. Exposure from such higher-power transmitters would invalidate the underlying assumption that exposure from the lower-power transmitter is the only contributor to SAR in the relevant volume of tissue. 3. RF Exposure Evaluation Per the test report included herein, for 433.92MHz According to C63.10 Annex G EIRP = pt × gt =( E × d)2 /30, so pt=( E × d)2 /30* gt where pt is the transmitter output power in watts gt is the numeric gain of the transmitting antenna (dimensionless) E is the electric field strength in V/m d is the measurement distance in meters (m) transmitter output power for 433.92MHz Function Field strength (E): 79.22 (dBuV/m) = 0.0091 (V/m) Measurement distance (D): 3 (m) Antenna Gain, typical (dBi): 2.0 Numerical gain of the transmit antenna (gt): 1.58 Transmitter output power (TP): 0.000016(W) Transmitter output power (TP): 0.016(mW) Report No: 709502301261-00B EMC_SHA_F_R_02.06E TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch 3-13, No.151, Heng Tong Road, Shanghai, 200070, P.R. China Phone: +86 21 61410123, Fax:+86 21 61408600 Page 2 of 4 Rev. 23.00 Assessment with certified Wi-Fi & BT Module: According to the MPE report of the approved WiFi & Bluetooth modular (FCC ID: 2ANDL-CBU, approve date: 2020-12-31), the power density of 433.92, 2.4G Wi-Fi and Bluetooth are as below table: Band Frequency (MHz) Antenna Gain (dBi) Maximum Power (dBm) Maximum EIRP (W) Average EIRP (mW) Power Density at 20cm (mW/cm 2 ) Limit (mW/cm 2 ) 433.92 433.92 2.0 -- 0.000016 0.016 0.00000318 1.000 2.4G WLAN 2412 2.21 18.00 20.21 0.105 0.021 1.000 Bluetooth 2402 2.21 7.00 9.21 0.008 0.002 1.000 Calculated Formulary: Predication of MPE limit at a given distance S = PG/4πR² = power density (in appropriate units, e.g. mW/cm2); P = power input to the antenna (in appropriate units, e.g., mW); G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the power gain factor, is normally numeric gain; R = distance to the center of radiation of the antenna (appropriate units, e.g., cm); Simultaneous Transmission MPE Simultaneous transmission configuration Power density MPE Limit 2.4GHz Wi-Fi +433.92MHz Function 0.021+0.00000318=0.02100318 1.0 Bluetooth +433.92Hz Function 0.002+0.00000318=0.00200318 1.0 Maximum Power Density at 20cm = 0.00000318+0.021=0.02100318 mW/cm 2 still less than 1.0 mW/cm 2 limit, when 2.4GHz Wi-Fi and 433.92MHz simultaneous transmission. According to 47 CFR §2.1091, the RF exposure analysis concludes that the RF Exposure is FCC compliant. Report No: 709502301261-00B EMC_SHA_F_R_02.06E TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch 3-13, No.151, Heng Tong Road, Shanghai, 200070, P.R. China Phone: +86 21 61410123, Fax:+86 21 61408600 Page 3 of 4 Rev. 23.00 Innovation, Science and Economic Development Canada (ISED) MPE / Health Hazard Requirement Electric field strength levels, magnetic field strength levels and power density levels (10 MHz to 300 GHz) According to RSS-102 § (5.3.2), the electric and magnetic field strength reference levels, power density reference levels, and associated reference period for devices employed by the general public (uncontrolled environment) and controlled-use devices (controlled environment) are specified in table 7 and table 8. Note that the power density limits specified in these tables apply to whole body exposure conditions. Table 7: RF field strength and power density limits for devices used by the general public (uncontrolled environment) Report No: 709502301261-00B EMC_SHA_F_R_02.06E TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch 3-13, No.151, Heng Tong Road, Shanghai, 200070, P.R. China Phone: +86 21 61410123, Fax:+86 21 61408600 Page 4 of 4 Rev. 23.00 According to the MPE report of the approved WiFi & Bluetooth modular (IC: 23243-CBU, approve date: 2021-08-06), the power density of 433.92, 2.4G Wi-Fi and Bluetooth are as below table: Band Frequency (MHz) Antenna Gain (dBi) Maximum Power (dBm) Maximum EIRP (W) Power Density at 20cm (W/cm 2 ) Limit (W/cm 2 ) Worst- Case MPE Ratios (%) Sum of MPE Rations (%) Limit 433.92 433.92 2.0 -- 0.000016 0.0000318 1.662 0.0019 4.203 100 % 2.4G WLAN 2412 2.21 18.00 20.21 0.209 5.366 3.8911 Bluetooth 2402 2.21 7.00 9.21 0.017 5.351 0.3100 Calculated Formulary: Predication of MPE limit at a given distance S = PG/4πR² = power density (in appropriate units, e.g. W/cm2); P = power input to the antenna (in appropriate units, e.g., W); G = power gain of the antenna in the direction of interest relative to an …

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Report Number: 709502301261-00A EMC_SHA_F_R_02.01E TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch 3-13, No.151, Heng Tong Road, Shanghai, 200070, P.R. China Phone: +86 21 61410123, Fax:+86 21 61408600 Page 1 of 26 Rev. 23.00 FCC/ISED – TEST REPORT Report Number : 709502301261-00A Date of Issue: January 25, 2024 Model : RE500 Product Type : Smart Controller Applicant : Qingdao RONCO Mechanic Electronic Technology Co., Ltd. Address : No.43 Yanqing Rd, Huanxiu Sub-District, Jimo District Qingdao, Shandong, China Production Facility : Qingdao RONCO Mechanic Electronic Technology Co., Ltd. Address : No.43 Yanqing Rd, Huanxiu Sub-District, Jimo District Qingdao, Shandong, China Test Result : ◼ Positive  Negative Total pages including Appendices : 26 TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch is a subcontractor to TÜV SÜD Product Service GmbH according to the principles outlined in ISO 17025. TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch reports apply only to the specific samples tested under stated test conditions. Construction of the actual test samples has been documented. It is the manufacturer's responsibility to assure that additional production units of this model are manufactured with identical electrical and mechanical components. The manufacturer/importer is responsible to the Competent Authorities in Europe for any modifications made to the production units which result in non-compliance to the relevant regulations. TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch shall have no liability for any deductions, inferences or generalizations drawn by the client or others from TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch issued reports. This report is the confidential property of the client. As a mutual protection to our clients, the public and ourselves, extracts from the test report shall not be reproduced except in full without our written approval. dc Report Number: 709502301261-00A EMC_SHA_F_R_02.01E TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch 3-13, No.151, Heng Tong Road, Shanghai, 200070, P.R. China Phone: +86 21 61410123, Fax:+86 21 61408600 Page 2 of 26 Rev. 23.00 1 Table of Contents 1 Table of Contents .............................................................................................................................. 2 2 Details about the Test Laboratory ..................................................................................................... 3 3 Description of the Equipment Under Test .......................................................................................... 4 4 Summary of Test Standards.............................................................................................................. 5 5 Summary of Test Results .................................................................................................................. 6 6 General Remarks .............................................................................................................................. 7 7 Systems test configuration ................................................................................................................ 8 8 Test Setups ....................................................................................................................................... 9 9 Test Methodology ........................................................................................................................... 10 9.1 Conducted Emission ................................................................................................................ 10 9.2 Radiated Emission ................................................................................................................... 15 9.3 Bandwidth Measurement & 99% Occupied Bandwidth ............................................................. 20 9.4 Deactivation Time .................................................................................................................... 22 10 Test Equipment List ........................................................................................................................ 23 11 System Measurement Uncertainty ............................................................................................... 24 12 Photographs of Test Set-ups ....................................................................................................... 25 13 Photographs of EUT .................................................................................................................... 26 Report Number: 709502301261-00A EMC_SHA_F_R_02.01E TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch 3-13, No.151, Heng Tong Road, Shanghai, 200070, P.R. China Phone: +86 21 61410123, Fax:+86 21 61408600 Page 3 of 26 Rev. 23.00 2 Details about the Test Laboratory Details about the Test Laboratory Test Site 1 Company name: TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch No.16 Lane, 1951 Du Hui Road, Shanghai 201108, P.R. China FCC Registration Number: 820234 Designation Number: CN1183 IC Company Number: 31668 CAB identifier: CN0101 Telephone: +86 21 6141 0123 Fax: +86 21 6140 8600 Report Number: 709502301261-00A EMC_SHA_F_R_02.01E TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch 3-13, No.151, Heng Tong Road, Shanghai, 200070, P.R. China Phone: +86 21 61410123, Fax:+86 21 61408600 Page 4 of 26 Rev. 23.00 3 Description of the Equipment Under Test Product: Smart Controller Model no./HVIN: RE500 FCC ID: 2A3UM-RE500 IC: 30162-RE500 Rating: DC 5V/1A by USB charge input RF Transmission Frequency: 433.92MHz Modulation: OOK Antenna Type: Spring antenna Antenna Gain: 2.0 dBi max (Declared by manufacturer) Description of the EUT: The Equipment Under Test (EUT) is a transmitter operated at 433.92MHz. Test sample no.: SHA-714353-2 Contains Wi-Fi & BT Transmitter module: FCC ID: 2…

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Qingdao RONCO Mechanic Electronic Technology Co., Ltd. No.43 Yanqing Rd, Huanxiu Sub-District, Jimo District, Qingdao, Shandong,N/A China Antenna Information To whom it may concern, Product name: Smart Controller Model: RE500 FCC ID: 2A3UM-RE500 The applicable FCC rule part of this product is § 15.231, radiated measurements are used to show compliance with FCC limits for fundamental and spurious emissions. The Antenna information as below for your reference. Antenna photo: Antenna transmission frequency: 433.92MHz Antenna type: Spring Antenna Antenna Gain: 2.0 dBi Yours sincerely, Signature: Company Officer Cunlei Cui Telephone Number +86 0532-88595298 Email [email protected]