RNEVN1TXCA5AcuRite IrisTM (5-in-1) Weather Sensor(Single Solar Panel), AcuRite IrisTM(5-in-1) Weather Sensor(Dual Solar Panel)

FCC ID: RNEVN1TXCA5 IC: 6608A-VN1TXCA5 Model: VN1TXCA5

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: AcuRite Iris™ (5-in-1) Weather Sensor (Single Solar Panel) Test Model No.: VN1TXCA5 Photograph of Test Setup Radiated Emissions (30 MHz - 1 GHz) Radiated Emissions (Above 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 RF Conducted measurement

Model: R20 Antenna Type：Spring Antenna Antenna Gain：0dBi Manufacturer: Xiamen Tianming Spring Co., LTD Address: Unit 301, No. 33, Huli Industrial Park, Meixi Road, Tong 'an District, Xiamen City 28 Circle Unit: mm

Shenzhen QC Testing Laboratory Co., Ltd. Report No.: QCT26CR-1286E-01 Page 1 of 24 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 Chaney Instrument Co. Unit No. 1, 9/F., Clifford center, No. 782 Cheung Sha Wan Road, Kowloon, Hong Kong FCC ID: RNEVN1TXCA5 Model: VN1TXCA5, 06014 March 3, 2026 T hi s Repor t Concer ns: Or iginal Report Equi pm ent T ype: AcuRite Iris™ (5-in-1) Weather Sensor (Single Solar Panel), AcuRite Iris™ (5-in-1) Weather Sensor(Dual Solar Panel) Test Engineer: Fan Yang / Report Number: QCT26CR-1286E-01 Test Date: March 2~3, 2026 Test Result: Pass Reviewed By: Vincent Yang / 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 Shenzhen QC Testing Laboratory Co., Ltd. Report No.: QCT26CR-1286E-01 Page 2 of 24 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 ............................................. 5 1.3 Test Facility .......................................................... 5 1.4 Measurement Uncertainty .............................................. 6 2. Summary of Test Results ..................................................... 7 3. List of Test and Measurement Instruments ...................................... 8 3.1 Radiated Emission Test ............................................... 8 3.2 RF Conducted test .................................................... 8 4. Antenna requirement ......................................................... 9 5. Radiated Emission Method ................................................... 10 5.1 Applicable Standard .................................................. 10 5.2 Limit ............................................................... 10 5.3 Receiver setup ...................................................... 11 5.4 Test setup .......................................................... 11 5.5 Test Procedure ...................................................... 12 5.6 Test Data ........................................................... 12 6. 20dB Occupy Bandwidth ..................................................... 20 6.1 Applicable Standard .................................................. 20 6.2 Limit ............................................................... 20 6.3 Test setup .......................................................... 20 6.4 Test Data ........................................................... 20 7. Release Time Measurement ................................................. 22 7.1 Applicable Standard .................................................. 22 7.2 Limit ............................................................... 22 7.3 Test Procedure ...................................................... 22 7.4 Test setup .......................................................... 22 7.5 Test Data ........................................................... 22 8. Duty Cycle ................................................................. 24 8.1 Applicable Standard .................................................. 24 8.2 Limit ............................................................... 24 8.3 Test setup .......................................................... 24 8.4 Test Procedure ...................................................... 24 8.5 Test Dat ............................................................ 24 Shenzhen QC Testing Laboratory Co., Ltd. Report No.: QCT26CR-1286E-01 Page 3 of 24 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 Revision History of This Test Report Report Number Description Issued Date QCT26CR-1286E-01 Initial Issue 2026-03-03 Shenzhen QC Testing Laboratory Co., Ltd. Report No.: QCT26CR-1286E-01 Page 4 of 24 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 1. GENERAL INFORMATION 1.1 Product Description for Equipment under Test (EUT) EUT Description: AcuRite Iris™ (5-in-1) Weather Sensor(Single Solar Panel), AcuRite Iris™ (5-in-1) Weather Sensor(Dual Solar Panel) Model No. VN1TXCA5, 06014 Tested Model: VN1TXCA5, 06014 Model Difference: This product offers two solar power options. The AcuRite Iris™ (5- in-1) Weather Sensor (Single Solar Panel) / VN1TXCA5 is equipped with only one solar panel; while the AcuRite Iris™ (5-in-1) Weather Sensor (Dual Solar Panel) / 06014 is fitted with two solar panels. They are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type and antenna location, components on PCB, etc.), Single Solar Panel and Dual Solar Panel have no effect on the RF circuit, We tested all items at the VN1TXCA5 with Single Solar Panel, and only test the spurious emission (30MHz - 1GHz) at at the 06014 with Dual Solar Panel. Sample(s) Status: Engineer sample Operation Frequency: 433.934 MHz Channel numbers: 1 Modulation type: ASK Antenna Type: Spring Antenna Antenna gain 1 : 0dBi Power supply: parallel connection: DC 3V (Powered by 4*1.5V AA battery) Trade Mark: ACURITE Applicant: Chaney I…

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Shenzhen QC Testing Laboratory Co., Ltd. FCC ID: RNEVN1TXCA5 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 433.934 -26.34 0.002 5 0.0003 3.0 Note: 1. use the maximum E-field strength(68.86dBuV/m) for the RF exposure evaluation 2. E(dBuV/m)=EIRP(dBm)-95.2 for distance 3m so the EIRP=68.86dBuV/m-95.2=-26.34dBm ------The End------

Shenzhen QC Testing Laboratory Co., Ltd. Page 1 of 14 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: AcuRite Iris™ (5-in-1) Weather Sensor (Single Solar Panel) Model No.: VN1TXCA5 EUT Constructional Details Shenzhen QC Testing Laboratory Co., Ltd. Page 2 of 14 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 of 14 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 of 14 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 AAntenna Shenzhen QC Testing Laboratory Co., Ltd. Page 5 of 14 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 6 of 14 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 7 of 14 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 8 of 14 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: AcuRite Iris™ (5-in-1) Weather Sensor(Dual Solar Panel) Model No.: 06014 EUT Constructional Details Shenzhen QC Testing Laboratory Co., Ltd. Page 9 of 14 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 10 of 14 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 AAntenna Shenzhen QC Testing Laboratory Co., Ltd. Page 11 of 14 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 12 of 14 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 13 of 14 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 14 of 14 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------

FCC ID: RNEVN1TXCA5 IC: 6608A-VN1TXCA5 Model: 06014

Chaney Instrument Co. Code 00018768 Ed. 1 Item 1. The device is able to install software/program installation? ☐ Yes, go to Item 2. ☒ No. In this case, the rest of the items do not apply. The device cannot support installation of Kaspersky cybersecurity or anti-virus software. Device AcuRite Iris™ (5-in-1) Weather Sensor (Single Solar Panel), AcuRite Iris™ (5-in-1) Weather Sensor(Dual Solar Panel) Company name Chaney Instrument Co. Grantee code RNE FCC ID RNEVN1TXCA5 FRN 0018304394 Contact name Victor Mak Address Unit No. 1, 9/F., Clifford center, No. 782 Cheung Sha Wan Road, Kowloon, Hong Kong Telephone number +852-35829826 E-mail [email protected] Chipset/module information F113 Operating System (if applicable) / Storage Capacity (hard drive or other permanent memory storage, if applicable) / 2 Item 2. Technical Requirements for Kaspersky Cybersecurity Software: # General Requirements (For all Devices) Yes / No or N/A Comments 1 Internet connection for activation and updates (For all Operating Systems) N/A # General Requirements (For Windows Devices) Yes / No or N/A Comments 1 Storage: 1500 MB free space on the hard drive N/A 2 Operating System: Microsoft Windows 8, 8.1, 10 & 11 Home / Pro / Enterprise Microsoft Windows 7 Starter / Home Basic & Premium / Professional / Ultimate SP1 or higher N/A 3 Processor: 1 GHz or higher (x86 or x64) N/A 4 Memory (RAM)1 GB (32-bit) or 2 GB (64-bit) N/A 5 Screen Resolution: Minimum resolution of 1024 x 768 N/A # General Requirements (For macOS devices) Yes / No or N/A Comments 1 Operating System macOS® 13 – 14 N/A 2 Memory (RAM)4 GB N/A 3 Storage: 3455 MB free space on the hard drive N/A # General Requirements (For Android Devices) Yes / No or N/A Comments 1 Storage: 150 MB free space N/A 2 Operating System: Android™ 10 – 14 N/A 3 Screen Resolution: Minimum resolution of 320 x 480 N/A # General Requirements (for iOS devices) Yes / No or N/A Comments 1 Storage: 150 MB free space N/A 3 2 Operating System: iOS® 17 N/A # General Requirements (For Linux system) Yes / No or N/A Comments 1 Hard drive: 1 GB of free space N/A 2 CPU: Intel Pentium 1 GHz or higher 3 RAM: 1 GB 4 Minimum software requirements: AlmaLinux OS 8 or later; AlterOS 7.5 or later; Astra Linux Common Edition 2.12 or later; CentOS 6.7 or later; Debian GNU/Linux 10.0 or later; EulerOS 2.0 or later; Oracle Linux 7.3 or later ; Red Hat Enterprise Linux 6.7 or later ; Rocky Linux 8.5 or later ; SUSE Linux Enterprise Server 12.5 or later; Ubuntu 12.04 or later ; Uncom OS Home / Business / Education / Enterprise 2.2 or later; ALT Linux Workstaton / Workstation K / Server / Education 8 or later; ROSA Linux Workstation / Server 12 or later ; RED OS 7.3 and later ; N/A N/A N/A 4 After reviewed the technical requirements, is the device capable of supporting the installation of Kaspersky software? ☐Yes, go to Item 3. ☒No. In this case, the rest of the items do not apply. The device cannot support installation of Kaspersky software Item 3. Connectivity Capabilities: # Physical Interface Purpose Justification 1 1 # Wireless Interface Purpose Justification 1 1 After the review of this items, the device: ☒Cannot support installation of any cybersecurity or anti-virus software on the covered list. ☐Potentially can operate with any cybersecurity or anti-virus software on the covered list – additional third- party proof is provided to demonstrate compliance with requirements as of 2.911(d)5(i),(ii) – “Proof of Compliance with Covered List Software Requirements” of this document applies Signature: Name: Victor Mak Date: 2026.3.13 1 The justification field is used to justify why the software cannot be received through that interface. Check the annex for more indications.

Shenzhen QC Testing Laboratory Co., Ltd. Page 1 of 8 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: AcuRite Iris™ (5-in-1) Weather Sensor (Single Solar Panel) Model No.: VN1TXCA5 EUT Constructional Details Shenzhen QC Testing Laboratory Co., Ltd. Page 2 of 8 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 of 8 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 of 8 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 of 8 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: AcuRite Iris™ (5-in-1) Weather Sensor(Dual Solar Panel) Model No.: 06014 EUT Constructional Details Shenzhen QC Testing Laboratory Co., Ltd. Page 6 of 8 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 7 of 8 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 8 of 8 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------

C5266091_X8_Ed.1 1/1 Letter of Authorization Company: Chaney Instrument Co. Address: Unit No. 1, 9/F., Clifford center, No. 782 Cheung Sha Wan Road, Kowloon, Hong Kong Product Name: AcuRite Iris™ (5-in-1) Weather Sensor(Single Solar Panel), AcuRite Iris™ (5-in-1) Weather Sensor(Dual Solar Panel) Model Number: VN1TXCA5, 06014 FCC Identifier: RNEVN1TXCA5 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: Victor Mak 2026-3-13 Title: Project Manager - Digital Products Signature of applicant:

C5266091_X10_Ed.2 1/1 Chaney Instrument Co. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2026-3-13 Subject: Request for Confidentiality FCC ID: RNEVN1TXCA5 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: Victor Mak Title: Project Manager - Digital Products

Attestation Statement. Old Code: C5266091 24 New Code: 00015544 Ed.3 Change reason: FRN is added to the Applicant information section. 1/1 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: Chaney Instrument Co. Grantee code: RNE FCC ID: RNEVN1TXCA5 FRN: 0018304394 Contact Name: Victor Mak Address: Unit No. 1, 9/F., Clifford center, No. 782 Cheung Sha Wan Road, Kowloon, Hong Kong Telephone No: +852-35829826 Fax No: +852-28890331 Email: [email protected] i. [Chaney Instrument Co.] (“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. [Chaney Instrument Co.] (“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. [Chaney Instrument Co.] (“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: 2026/3/13 Applicant’s Name: Victor Mak Title: Project Manager - Digital Products Signature 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

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: CHANEY INSTRUMENT COMPANY Contact Name: Jeff Bovee FRN: 0037310430 Address: 965 Wells St. P.O. Box 70 Lake Geneva, Wisconsin 53147 UNITED STATES Telephone No: 262-249-2389 Email: [email protected] EIN: 39-1594171 Applicant: Company name: Chaney Instrument Co. Product Description: AcuRite Iris™ (5-in-1) Weather Sensor (Single Solar Panel), AcuRite Iris™ (5- in-1) Weather Sensor(Dual Solar Panel) Grantee code: RNE FCC ID: RNEVN1TXCA5 FRN: 0018304394 Contact Name: Victor Mak Address: Unit No. 1, 9/F., Clifford center, No. 782 Cheung Sha Wan Road, Kowloon, Hong Kong Telephone No: +852-35829826 Fax No: +852-28890331 Email: [email protected] [Chaney Instrument Co.] certifies that, as of the date of this filing of the application with the TCB, [CHANEY INSTRUMENT COMPANY] is our designated US agent for service of process for the above referenced FCC ID. [Chaney Instrument Co.] 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. [CHANEY INSTRUMENT COMPANY] 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 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: 2026/3/13 Applicant’s Name: Victor Mak US Agent’s Name: Jeff Bovee Title: Project Manager - Digital Products Title: VP, Product, AcuRite & Sync Signature Signature

TCB CALL página 1 File FCC ID: RNEVN1TXCA5 Please upload an exhibit that explains how does the TCB verify the new agent information: 1- Is the address of the agent a valid physical US mailing address (not a US post office box, not a virtual mailbox, not P.O. Boxes, not a vacant lot, not a public building, etc.) ○We have checked if the address exists in a real and potential building (Google maps) + official US register, after this verification and the evidence below we can guarantee the following: not a US post office box not a virtual mailbox not P.O. Boxes not a vacant lot not a public building(note) ►We checked the FCC FRN Search based on the information provided by the grantee. In google: TCB CALL página 2 TCB CALL página 3 TCB CALL página 4 TCB CALL página 5 TCB CALL página 6 TCB CALL página 7 ►CONCLUSION by TCB: The ASOP defined and provided by grantee is VALID and confirmed. Therefore the exhibit "C5266091_X23_Ed1_US_Agent_Letter" included in the file is ok. 2- Is the agent physically located at that valid US address such that the agent can be legally served at that address? Yes , check above 3- Has the listed agent clearly agreed in writing to serve as the agent for the grantee at that address? Yes, it is included in the exhibit "C5266091_X23_Ed1_US_Agent_Letter" >

Chaney Instrument Co. Product Similarity Declaration Product name: AcuRite Iris™ (5-in-1) Weather Sensor (Single Solar Panel), AcuRite Iris™ (5-in-1) Weather Sensor(Dual Solar Panel) Model: VN1TXCA5, 06014 FCC ID: RNEVN1TXCA5 We (Chaney Instrument Co.) 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.,), Single Solar Panel and Dual Solar Panel have no effect on the RF circuit, the only differences are the following table shows. Product name Model differences AcuRite Iris™ (5-in- 1) Weather Sensor (Single Solar Panel) VN1TXCA5 Single Solar Panel AcuRite Iris™ (5-in- 1) Weather Sensor(Dual Solar Panel) 06014 Dual Solar Panel Signature: Name: Victor Mak Address: Unit No. 1, 9/F., Clifford center, No. 782 Cheung Sha Wan Road, Kowloon, Hong Kong