2BW9P-DN15Ultrasonic Water Meter

Attestation Statement. Old Code: C5266091 24 New Code: 00015544 Ed.3 Change reason: FRN is added to the Applicant information section. 1/1 Hangzhou Licheng Electronic Machinery Co., Ltd. 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: Hangzhou Licheng Electronic Machinery Co., Ltd. Grantee code: 2BW9P FCC ID: 2BW9P-DN15 FRN: 0038683629 Contact Name: Liusheng Zhang Address: Room 2005, 2nd Floor, Building 2, No.128 Zhiyi Road, Yuhang Subdistrict, Yuhang District, Hangzhou, Zhejiang, China Telephone No: 18158101631 Fax No: / Email: [email protected] i. [Hangzhou Licheng Electronic Machinery 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. [Hangzhou Licheng Electronic Machinery 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. [Hangzhou Licheng Electronic Machinery 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: August 26, 2026 Applicant’s Name: Liusheng Zhang Title: Technical Support Specialist 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

Hangzhou Licheng Electronic Machinery Co., Ltd. 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. 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 Device Ultrasonic Water Meter Company name Hangzhou Licheng Electronic Machinery Co., Ltd. Grantee code 2BW9P FCC ID 2BW9P-DN15 FRN 0038683629 Contact name Liusheng Zhang Address Room 2005, 2nd Floor, Building 2, No.128 Zhiyi Road, Yuhang Subdistrict, Yuhang District, Hangzhou, Zhejiang, China Telephone number 18158101631 E-mail [email protected] Chipset/module information R7F0C004, SX1261 Operating System (if applicable) N/A Storage Capacity (hard drive or other permanent memory storage, if applicable) N/A 2 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 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 N/A 3 3 RAM: 1 GB N/A 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 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 The justification field is used to justify why the software cannot be received through that interface. Check the annex for more indications. 4 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: Liusheng Zhang Date: August 26, 2026

TCB CALL página 1 File FCC ID: 2BW9P-DN15 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. On the official register from : Search | coloradosos.gov TCB CALL página 2 TCB CALL página 3 TCB CALL página 4 TCB CALL página 5 ► 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" >

C5266091_X10_Ed.2 1/1 HangzhouLichengElectronicMachineryCo.,Ltd. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Date:2026-08-26 Subject:RequestforConfidentiality FCCID:2BW9P-DN15 ToWhomItMayConcern, PursuanttotheprovisionsofSections0.457and0.459ofCommission'srules (47CFR0.457,0.459),wearerequestingtheCommissiontowithholdthefollowing attachment(s)asconfidentialdocumentfrompublicdisclosure. ExhibitsLong-Term Confidentiality Short-TermConfidentiality NOTE2 IDLabel/LocationNoNo AttestationStatementNoNo ExternalPhotosNo ☒ BlockDiagram ☒☐ Schematics ☒☐ TestReportNoNo TestSetupPhotosNo ☒ User’sManual ☐ NOTE 1 ☒ InternalPhotos ☐ NOTE 1 ☒ PartsList/TuneUp ☐☐ RFExposureInfoNoNo OperationalDescription ☒☐ CoverLetter(s)NoNo SDRSoftware/SecurityInfo ☐ No NOTE1:Long-TermConfidentialitymaybepermittedunderspecialconditions(SeeII.LONG-TERMCONFIDENTIALITY,Section3of KDB726920,uselastinforce) NOTE2:Short-TermConfidentialitycanberequestedforamaximumof180daysfromthedateofthegrant. Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Incaseofshort-termConfidentiality,theapplicantrequeststheexhibitsselectedabove arewithheldfrompublicviewforaperiodof___180___daysfromthedateofthe GrantofEquipmentAuthorizationandpriortomarketing. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. C5266091_X10_Ed.2 1/1 Sincerely, Name:LiushengZhang Title:TechnicalSupportSpecialist 2026/8/26

C5266091_X8_Ed.1 1/1 Letter of Authorization Hangzhou Licheng Electronic Machinery Co., Ltd. Company: Hangzhou Licheng Electronic Machinery Co., Ltd. Address: Room 2005, 2nd Floor, Building 2, No.128 Zhiyi Road, Yuhang Subdistrict, Yuhang District, Hangzhou, Zhejiang, China Product Name: Ultrasonic Water Meter Model Number: U-LY FCC Identifier: 2BW9P-DN15 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: Liusheng Zhang Date: August 26, 2026 Title: Technical Support Specialist Signature of applicant:

MAXIMUMPERMISSIBLEEXPOSURE KDB447498D01MobileandPortableDevicesRFExposureProceduresand EquipmentAuthorizationPoliciesv06. 2.1091Radiofrequencyradiationexposureevaluation:mobiledevices. AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeused toevaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF) Radiationasspecifiedin§1.1307(b) EUTSpecification FCCID2BW9P-DN15 EUTUltrasonicWaterMeter Frequencyband(Operating)BT:2.402GHz~2.480GHz WLAN:2.412GHz~2.462GHz RLAN:5.180GHz~5.240GHz RLAN:5.260GHz~5.320GHz RLAN: 5.500 GHz~ 5.700 GHz RLAN:5.745GHz~5.825GHz Others:915.2-916.6MHz DevicecategoryPortable(<20cmseparation) Mobile(>20cmseparation) Others___ ExposureclassificationOccupational/Controlledexposure GeneralPopulation/Uncontrolledexposure AntennadiversitySingleantenna Multipleantennas Txdiversity Rxdiversity Tx/Rxdiversity Antennagain(Max)-2.75dBi EvaluationappliedMPEEvaluation SAREvaluation LimitsforMaximumPermissibleExposure(MPE) Frequency Range(MHz) ElectricField Strength(V/m) MagneticField Strength(A/m) Power Density(mW/cm 2 ) AverageTime (A)LimitsforOccupational/ControlExposures 300-1500----F/3006 1500-100000----56 (B)LimitsforGeneralPopulation/UncontrolExposures 300-1500----F/150030 1500-100000----130 Friistransmissionformula:Pd=(Pout*G)\(4*pi*R2) Where Pd= Powerdensityin mW/cm 2 Pout=outputpowerto antennain Mw G= gain of antennain linearscale Pi=3.1416 R= distancebetweenobservationpointand centerof the radiatorin cm Pd the limit of MPE.If we knowthe maximumgain of the antennaand total powerinputto the antenna,throughthe calculation,we will knowthe distancewherethe MPElimit is reached. MeasurementResult OperatingMode Maximum output power (dBm) Tuneup tolerance (dBm) Max.Tuneup Power (dBm) Antenna Gain (dBi) Power densityat 20cm (mW/cm 2 ) Power density Limits (mW/cm 2 ) SRD(915~928MHz)10.10310.103±111.103-2.750.00140.61

Page 1 of 36 Code:AB-RF-05-b FCC Test Report Report No.:1812C60407612501 Applicant: Hangzhou Licheng Electronic Machinery Co., Ltd. Address: Room 2005, 2nd Floor, Building 2, No.128 Zhiyi Road, Yuhang Subdistrict, Yuhang District, Hangzhou City, Zhejiang Province, China Product Name:Ultrasonic Water Meter Report Date:2026-09-03 Shenzhen Anbotek Compliance Laboratory Limited #资质章# #检测章# #报告二维码# Report No.: 1812C60407612501 Page 2 of 36 FCC ID: 2BW9P-DN15 Code:AB-RF-05-b Contents 1. General Information ..........................................................................................................................................6 1.1. Client Information...................................................................................................................................6 1.2. Description of Device (EUT).................................................................................................................6 1.3. Auxiliary Equipment Used During Test ...............................................................................................7 1.4. Description of Test Configuration ........................................................................................................7 1.5. Description Of Test Setup ....................................................................................................................8 1.6. Test Equipment List...............................................................................................................................9 1.7. Measurement Uncertainty ..................................................................................................................10 1.8. Description of Test Facility .................................................................................................................10 1.9.Disclaimer ..............................................................................................................................................11 2. Summary of Test Results ..............................................................................................................................12 3. Conducted Emission Test ..............................................................................................................................13 3.1. Test Standard and Limit......................................................................................................................13 3.2. Test Setup.............................................................................................................................................13 3.3. Test Procedure.....................................................................................................................................13 3.4. Test Data...............................................................................................................................................13 4. Radiation Spurious Emission and Band Edge ............................................................................................14 4.1. Test Standard and Limit......................................................................................................................14 4.2. Test Setup.............................................................................................................................................14 4.3. Test Procedure.....................................................................................................................................15 4.4. Test Data...............................................................................................................................................16 5. Maximum Peak Output Power Test..............................................................................................................22 5.1. Test Standard and Limit......................................................................................................................22 5.2. Test Setup.............................................................................................................................................22 5.3. Test Procedure.....................................................................................................................................22 5.4. Test Data...............................................................................................................................................22 6. 6dB Emission Bandwidth Test ......................................................................................................................24 6.1. Test Standard and Limit......................................................................................................................24 6.2. Test Setup.............................................................................................................................................24 6.3. Test Procedure.....................................................................................................................................24 6.4. Test Data...............................................................................................................................................24 7. Power Spectral Density Test .........................................................................................................................26 7.1. Test Standard and Limit......................................................................................................................26 7.2. Test Setup.............................................................................................................................................26 7.3. Test Procedure.....................................................................................................................................26 7.4. Test Data.......................................................................................................................................…

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Antenna Test Report Customer NameLicheng Operating Frequency Band 915/923MHZ Antenna EngineerGuofu Lin Structural Engineer Hao Huang Date2026-08-24Antenna MaterialSpring Manufacturer:Hangzhou Licheng Electronic Machinery Co., Ltd. Address:Room 2005, 2nd Floor, Building 2, No.128 Zhiyi Road, Yuhang Subdistrict, Yuhang Distric, Hangzhou, Zhejiang, China E5071C Network Analyzer Test equipment 7m x 4m x 3m microwave anechoic chamber Prototype Image Antenna VSWR and Its Test Data FreqEffiGain (MHz)(%)(dBi) 90018.6-3.33 90218.72-3.27 90419.31-3.09 90620.11-2.89 90820.75-2.72 91020.89-2.64 91220.53-2.67 91419.91-2.79 91619.36-2.88 91819.09-2.91 92019.1-2.87 92219.28-2.81 92419.41-2.76 92619.4-2.75 92819.21-2.75 93018.9-2.77 2/3D test chart Unit:mm