2BRMO-25TH05Wireless Thermometer and Hygrometer

FCC Caution: 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. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

CoveredEquipmentAttestationLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(5)(i)-(ii)oftheCommission’sRules(47C.F.R.)weattestas followsfortheproductlistedbelow: FCCIDModelname 2BRMO-25TH0525TH05 We, Applicant CompanyName:FuzhouSmartwellElectronicsTechnologyCo.,Ltd Address:1106,11thFloor,Building19,PhaseII,Innovation Park,No.7WulongjiangMiddleAvenue,Minhou County,Fuzhou,Fujian,China Phone:8615999518662 certifythattheequipmentforwhichauthorizationissoughtisnot“covered”equipment prohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCC rules.Thisincludesthecybersecurityandanti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofistsuccessorsandassignees. Wecertifythat,asofthedateofthefilingoftheapplication,theapplicantisnotidentified ontheCoveredListasanentityproducing“covered”equipment. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2025-11-28 SignatureDate PrintedNameofSignee:XianghuiLin Company:FuzhouSmartwellElectronics TechnologyCo.,Ltd Phone:8615999518662 Email:[email protected] Address:1106,11thFloor,Building19, PhaseII,InnovationPark,No.7Wulongjiang MiddleAvenue,Minhou County,Fuzhou,Fujian,China Fax:N/A

ConfidentialityRequestLetter ForCertificationServiceintheUSA FederalCommunicationCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoParagraphs§0.457and0.459oftheCommission’sRules(47C.F.R.)andSection §552(b)(4)oftheFreedomofInformationAct,werequestconfidentialityforthe documentationofthefollowingproducts: FCCIDModelname 2BRMO-25TH0525TH05 Fortheproductslistedabove,werequestpermanentconfidentialityforallapplicable exhibitsasthereare:  theOperationalDescription  theBlockDiagram theSchematics Theabovelistedexhibitscontaintradesecretsandproprietaryinformationthatcouldbeof benefittoourcompetitors. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2025-11-28 SignatureDate PrintedNameofSignee/Title:XianghuiLin/Manager Company:FuzhouSmartwellElectronicsTechnologyCo.,Ltd Address:1106,11thFloor,Building19,PhaseII,InnovationPark,No.7WulongjiangMiddle Avenue,MinhouCounty,Fuzhou,Fujian,China Phone:8615999518662 Fax:N/A Email:[email protected]

Report No.: CISRR25102009501 Page 41 of 44 9. EXTERNAL AND INTERNAL PHOTOS 9.1. External Photos Report No.: CISRR25102009501 Page 42 of 44

Label Size:40mm*40mm

Report No.: CISRR25102009501 Page 43 of 44 9.2. Internal Photos ANT Report No.: CISRR25102009501 Page 44 of 44 ------End of the report-----

Report No.: CISRR25102009502 Report template version: CISE-TR-001-A0 Page: 1 of 5 TEST REPORT RF Exposure Evaluation Report No. CISRR25102009502 Project No. CISR251020095 FCC ID 2BRMO-25TH05 Applicant Fuzhou Smartwell Electronics Technology Co., Ltd Address 1106, 11th Floor, Building 19, Phase II, Innovation Park, No. 7 Wulongjiang Middle Avenue,Minhou County,Fuzhou,Fujian,China Manufacturer Fuzhou Smartwell Electronics Technology Co., Ltd Address 1106, 11th Floor, Building 19, Phase II, Innovation Park, No. 7 Wulongjiang Middle Avenue,Minhou County,Fuzhou,Fujian,China Product Name Wireless Thermometer and Hygrometer Trade mark - Model/Type reference 25TH05 Listed Model(s) - Standard 47 CFR Part 2.1093 Date of sample receipt October 22, 2025 Test date October 22, 2025 to October 24, 2025 Issue date October 27, 2025 Test result Complied Reviewed by: Lucas Huang Approved by: Hans Hu The test results relate only to the tested samples. The test report should not be reproduced except in full without the written approval of Shenzhen Bangce Testing Technology Co., Ltd. Report No.: CISRR25102009502 Report template version: CISE-TR-001-A0 Page: 2 of 5 1. APPLICABLE STANDARD 47 CFR Part2.1093: Radio frequency radiation exposure evaluation: portable devices ANSI C95.1–3999: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz. FCC KDB publication 447498 D01 General RF Exposure Guidance v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies. 47 CFR Part1.1307: Actions that may have a significant environmental effect, for which Environmental Assessments (EAs) must be prepared. 2. REPORT VERSION Version No. Issue date Description 00 Original Report No.: CISRR25102009502 Report template version: CISE-TR-001-A0 Page: 3 of 5 3. RADIO SPECIFICATION DESCRIPTION Bluetooth Supported type: BR EDR LE-1Mbps LE-2Mbps Note: Please refer to RF report for detailed technical specifications 4. SIMULTANEOUS TRANSMISSION ANALYSIS These devices use a single module and antenna for Bluetooth. Report No.: CISRR25102009502 Report template version: CISE-TR-001-A0 Page: 4 of 5 5. TEST RESULT 5.1. Standalone transmission Limit: KDB447498 D01 v06, Clause 4.3.1 a) 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 calculation31 • The result is rounded to one decimal place for comparison ⚫ The values 3.0 and 7.5 are referred to as numeric thresholds in step b) below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm, and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to 4.1 f) is applied to determine SAR test exclusion. Result: Passed Test Data Radio type Frequency (GHz) Maximum output power #1 (dBm) Antenna gain #2 (dBi) Maximum EIRP #3 (dBm) Maximum tune-up EIRP (dBm) Minimum distance (mm) Evaluated value Limit Result BLE 2.48 3.80 2.21 6.01 6.50 5.00 1.407 3.00 PASS Note #1: This value comes from the RF test report. #2: This value is declared by the applicant. #3: EIRP=Maximum output power + Antenna gain. Report No.: CISRR25102009502 Report template version: CISE-TR-001-A0 Page: 5 of 5 5.2. Simultaneous transmission Limit: KDB447498 D01 v06, Clause 4.3.2, 47 CFR Part1.1307 In the case of xed RF sources operating in the same time-averaging period, or of multiple mobile or portable RF sources within a device operating in the same time averaging period, if the sum of the fractional contributions to the applicable thresholds is less than or equal to 1 as indicated in the following equation. Where a = number of fxed, mobile, or portable RF sources claiming exemption using paragraph (b)(3)(i)(B) of this section for P , including existing exempt transmitters and those being added. b = number of fxed, mobile, or portable RF sources claiming exemption using paragraph (b)(3)(i)(C) of this section for Threshold ERP, including existing exempt transmitters and those being added. c = number of existing fixed, mobile, or portable RF sources with known evaluation for the speci ed minimum distance including existing evaluated transmitters. P j = the available maximum time-averaged power or the ERP, whichever is greater, for xed, mobile, or portable RF source i at a distance between 0.5 cm and 40 cm (inclusive). P th, j = the exemption threshold power (P ) according to paragraph (b)(3)(i)(B) of this section for xed, mobile, or portable RF source i. ERP j = the ERP of fixed, mobile, or portable RF source j. ERP th, j = exemption threshold ERP for fixed, mobile, or portable RF source j, at a distance of at least λ/2π according to the applicable formula of paragraph (b)(3)(i)(C) of this section. Evaluated k = the maximum reported SAR or MPE of fixed, mobile, or portable RF source k either in the device or at the transmitter site from an existing evaluation at the location of exposure. Exposure Limit k = either the general population/uncontrolled maximum permissible exposure (MPE) or speci c absorption rate (SAR) limit for each xed, mobile, or portable RF source k, as applicable from § 1.1310 of this chapter. Result: Not Applicable --------End of Report--------

CBUAntennatest Antenna data sheet Product Name:TH05 Antenna Type:PCB antenna Writer:Yinhua Zhang Maximum Gain：2.21dBi Efficiency:32.96% Version1.0.0Date：2020-11-24NO：0000000001 ManufacturerHangzhou Tuya InformationTechnology Co.,Ltd Address Room 701,Building 3,More Center,No.87 GuDun Road ,Hangzhou,Zhejiang,China Content 1.GeneralDescription.................................................................................3 2.TechnicalInformation.............................................................................3 3.TestStandards..........................................................................................3 4.TestItem..................................................................................................4 5.TestPhoto................................................................................................4 AppendixAS11/VSWR..............................................................................5 AppendixBGainandEfficiency................................................................6 AppendixCRadiationPattern(1Dand3D)................................................7 AppendixDTestSetupPhoto.....................................................................9 AppendixEEUTPhoto.............................................................................10 Th05 A ntenna test report 1.GeneralDescription EUTName TH05 Antenna Wirelesstype AntennaTypePCBantenna DimensionsAppendixA 2.TechnicalInformation FrequencyRange2402MHz~2480MHz TestFrequency2400,2410......2500MHz 3.TestStandards IdentityDocumentTitle IEEE149-1979IEEEStandardTestProcedures forAntennas Bluetooth 4.TestItem ReportSectionDescription AppendixB TH05 /VSWR AppendixCGainandEfficiency AppendixD RadiationPattern（1Dand3D） 5.TestPhoto ReportSectionDescription AppendixETestSetupPhoto AppendixAAntennaDimension AppendixBS11/VSWR Frequency(MHz)240024502500 ReturnLoss-8.73-11.76-11.21 VSWR2.161.711.77 AppendixCGainandEfficiency Frequency(MHz)Efficiency(%) Gain（dBi） 240032.36%2.11 241032.3%2.18 242032.1%2.21 243032.4%2.06 244032.9%2.07 245030.9%1.91 246030.8%2.04 247030.7%2.09 248031.6%1.98 249030.6%1.91 250030.5%1.03 AppendixDRadiationPattern(1Dand3D) AppendixETestSetupPhoto

ReportNo.:CISRR25102009501 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of38 TESTREPORT ReportNo.CISRR25102009501 ProjectNo.CISR251020095 FCCID2BRMO-25TH05 ApplicantFuzhouSmartwellElectronicsTechnologyCo.,Ltd Address 1106,11thFloor,Building19,PhaseII,InnovationPark,No.7 WulongjiangMiddleAvenue,MinhouCounty,Fuzhou,Fujian,China ManufacturerFuzhouSmartwellElectronicsTechnologyCo.,Ltd Address 1106,11thFloor,Building19,PhaseII,InnovationPark,No.7 WulongjiangMiddleAvenue,MinhouCounty,Fuzhou,Fujian,China ProductNameWirelessThermometerandHygrometer Trademark- Model/Typereference25TH05 ListedModel(s)- Standard 47CFRPart15.247 DateofsamplereceiptOctober22,2025 TestdateOctober22,2025toOctober24,2025 IssuedateOctober27,2025 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu ReportNo.:CISRR25102009501 Page 2 of 38 Contents 1.STANDARDANDAPPLICABLETESTMETHODS........................................................................................3 2.REPORTVERSION..........................................................................................................................................3 3.TESTDESCRIPTION.......................................................................................................................................4 4.SUMMARY........................................................................................................................................................5 4.1.ProductDescription*..................................................................................................................................5 4.2.RadioSpecificationDescription*..............................................................................................................5 4.3.ModificationofEUT.....................................................................................................................................6 4.4.Deviationfromstandards...........................................................................................................................6 4.5.TestingSite...................................................................................................................................................6 5.TESTCONFIGURATION.................................................................................................................................7 5.1.Testfrequencylist.......................................................................................................................................7 5.2.Descriptionsoftestmode...........................................................................................................................7 5.3.Supportunitusedintestconfiguration....................................................................................................7 5.4.Testsampleinformation.............................................................................................................................7 5.5.Environmentalconditions...........................................................................................................................7 5.6.Statementofthemeasurementuncertainty.............................................................................................7 5.7.EquipmentUsedduringtheTest................................................................................................................8 6.TESTRESULTS.............................................................................................................................................10 6.1.EvaluationResults(Evaluation)...............................................................................................................10 6.1.1.AntennaRequirement............................................................................................................................10 6.2.RadioSpectrumMatterTestResults(RF)...............................................................................................11 6.2.1.6dBBandwidth........................................................................................................................................11 6.2.2.MaximumConductedOutputPower.....................................................................................................12 6.2.3.PowerSpectralDensity..........................................................................................................................13 6.2.4.Conductedbandedgeandspuriousemission...................................................................................14 6.2.5.Radiatedbandedgeemission...............................................................................................................15 6.2.6.RadiatedSpuriousEmission(below1GHz).........................................................................................21 6.2.7.RadiatedSpuriousEmission(Above1GHz)........................................................................................25 7.APPENDIXREPORT......................................................................................................................................33 7.1.DutyCycle..................................................................................................................................................33 7.2.PowerSpectralDensity.............................................................................................................................34 7.3.ConductedOutputPower.........................................................................................................................35 7.4.6dBBandwidth...........................................................................................................................................36 7.5.ConductedOutOfBandEmission...........................................................................................................37 ReportNo.:CISRR2…

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Report No.: CISRR25102009501 Page 40 of 44 8. TEST SETUP PHOTOS Radiated band edge emission Radiated Spurious Emission (Above 1GHz) Radiated Spurious Emission (below 1GHz)