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2BTC8-B07smart lock

Shenzhen Rongfu Tiancheng Industrial Co., Ltd.
smart lock - FCC ID 2BTC8-B07 - Shenzhen Rongfu Tiancheng Industrial Co., Ltd.
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Application Details

Equipment Class
DTS - Digital Transmission System
Date of Grant
Dec 15, 2025
Application Purpose
Original Equipment
Equipment Note
smart lock
Frequency Range
2402.00000000 - 2480.00000000
Company
Shenzhen Rongfu Tiancheng Industrial Co., Ltd.
Country
China

Documents & Files

Select a file to view

Users Manual

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Attestation Statements

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Cover Letter(s)

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External Photos

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ID Label/Location Info

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Internal Photos

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RF Exposure Info

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Test Report

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Test Setup Photos

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Users Manual

Installation Guide Version 1.0 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. WHAT'S INCLUDEDPRODUCT OVERVIEWEXPLOSIVE VIEW Latch and strikeExterior AssemblyInterior AssemblyScrews FRONT PANELBACK PANEL Fingerprint reader Keyboard and card reader area Key hole cover Backup power port Battery pack Handle keyhole Front panel Mounting plate Back panel Screws Battery cover Screws Latch Handle Reset button Battery cover Phillips head screw driver Note: No drill needed Cable bypassing the Latch Note: The wire connectors can only be connected in one way. Note: Choose the screws that will fit the thickness of your door. Check labels on the screw bags. If you have a deadbolt lock on top, please move the deadbolt lock to the bottom and install our lock on top to avoid installation issues. insideinsideinside inside inside insideinsideinside outside outside Install front panel and interior mounting plate A A BCD B ABCABC ABC 34 7 6 5 ENGLISH Connect wire connector and install back panel Install our lock on top (only if needed)Insert the key and test the installation(The door must be open)Install the door handlesInstall 4 AA batteries and battery cover Install our lock on top Unscrew the screw Unscrew the screw Screw it back in Screw it back in 1 Adjust the back set of latch (if needed) A Hold the latch in front of the door hole, with the latch face flush against the door edge. B If the latch holes are centered in the door hole, no adjustment is required. Proceed to step 2. If the latch holes are NOT centered, adjust latch.See“Latch Adjustment”. 60mm(2-3/8in)60mm(2-3/8in) 60mm(2-3/8in)70mm(2-3/4in) Latch adjustment (only if needed) C Screws 2 Install latch A inside Note: The square hole must be horizontal B inside Turn the key 90 degrees, then press down on the handle. Installation Guide Version 1.0 ENGLISH

Attestation Statements

CoveredEquipmentAttestationLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(5)(i)-(ii)oftheCommission’sRules(47C.F.R.)weattestas followsfortheproductlistedbelow: FCCIDModelname 2BTC8-B07 B07、B04、RF-S826、RF-S829、RF- S830、RF-S835、RF-S836、RF-S839、RF- S850、RF-Y22 We, Applicant CompanyName:ShenzhenRongfuTianchengIndustrialCo., Ltd. Address:BuildingD,11thFloor,ZoneBHuilongda IndustrialParkShilongCommunityShiyan SubdistrictBao'anDistrictShenzhen Phone:13123730073 certifythattheequipmentforwhichauthorizationissoughtisnot“covered”equipment prohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCC rules.Thisincludesthecybersecurityandanti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofistsuccessorsandassignees. Wecertifythat,asofthedateofthefilingoftheapplication,theapplicantisnotidentified ontheCoveredListasanentityproducing“covered”equipment. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2025-12-06 SignatureDate PrintedNameofSignee:WenchaoYang Company:ShenzhenRongfuTiancheng IndustrialCo.,Ltd. Phone:13123730073 Email:[email protected] Address:BuildingD,11thFloor,ZoneB HuilongdaIndustrialParkShilong CommunityShiyanSubdistrictBao'an DistrictShenzhen Fax:N/A

Cover Letter(s)

ShenzhenRongfuTianchengIndustrialCo.,Ltd. BuildingD,11thFloor,ZoneBHuilongdaIndustrialParkShilongCommunityShiyan SubdistrictBao'anDistrictShenzhen Date:2025-12-06 FCCID:2BTC8-B07 ModelNumber:B07、B04、RF-S826、RF-S829、RF-S830、RF-S835、RF-S836、RF-S8 39、RF-S850、RF-Y22 To:FederalCommunicationCommission AuthorizationandEvaluationDivision7435OaklandMillsRoad Columbia,MD21048 ToWhomItMayConcern, We,ShenzhenRongfuTianchengIndustrialCo.,Ltd.herebydeclarethatourproduct (WirelessDoorbell)ModelNumber:B07、B04、RF-S826、RF-S829、RF-S830、RF-S835、 RF-S836、RF-S839、RF-S850、RF-Y22,electricalidentical,theSchematic,PCBlayout, structureandsoftwarearesame,onlythedifferenceisthemodelnameandlooksfor marketpurpose. Shouldyouhaveanyquestionsorcommentsregardingthismatter,pleasehave mybestattention. Sincerely, (Signed) Name/Title:WenchaoYang/Manager Company:ShenzhenRongfuTianchengIndustrialCo.,Ltd. Address:BuildingD,11thFloor,ZoneBHuilongdaIndustrialParkShilongCommunity ShiyanSubdistrictBao'anDistrictShenzhen Phone:13123730073 FaxNumber:N/A E-Mail:[email protected]

Cover Letter(s)

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 2BTC8-B07 B07、B04、RF-S826、RF-S829、RF-S830、 RF-S835、RF-S836、RF-S839、RF-S850、RF- Y22 Fortheproductslistedabove,werequestpermanentconfidentialityforallapplicable exhibitsasthereare:  theOperationalDescription theBlockDiagram  theSchematics Theabovelistedexhibitscontaintradesecretsandproprietaryinformationthatcouldbeof benefittoourcompetitors. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2025-12-06 SignatureDate PrintedNameofSignee/Title:WenchaoYang/Manager Company:ShenzhenRongfuTianchengIndustrialCo.,Ltd. Address:BuildingD,11thFloor,ZoneBHuilongdaIndustrialPark ShilongCommunityShiyanSubdistrictBao'anDistrict Shenzhen Phone:13123730073 Fax:-- Email:[email protected]

External Photos

ReportNo.:CISRR25112622101 Page 45 of 48 9.EXTERNALANDINTERNALPHOTOS 9.1.ExternalPhotos ReportNo.:CISRR25112622101 Page 46 of 48

ID Label/Location Info

Label Size:30mm*20mm smart lock Model No.:B07 FCC ID:2BTC8-B07 Label Location

Internal Photos

ReportNo.:CISRR25112622101 Page 48 of 49 9.2.InternalPhotos ANT ReportNo.:CISRR25112622101 Page 49 of 49 ------Endofthereport-----

RF Exposure Info

ReportNo.:CISRR25112622102 Reporttemplateversion:CISE-TR-001-A0Page:1of5 TESTREPORT RFExposureEvaluation ReportNo.CISRR25112622102 ProjectNo.CISR251126221 FCCID2BTC8-B07 ApplicantShenzhenRongfuTianchengIndustrialCo.,Ltd. Address BuildingD,11thFloor,ZoneBHuilongdaIndustrialParkShilong CommunityShiyanSubdistrictBao'anDistrictShenzhen ManufacturerShenzhenRongfuTianchengIndustrialCo.,Ltd. Address BuildingD,11thFloor,ZoneBHuilongdaIndustrialParkShilong CommunityShiyanSubdistrictBao'anDistrictShenzhen ProductNamesmartlock Trademark- Model/TypereferenceB07 ListedModel(s) B04、RF-S826、RF-S829、RF-S830、RF-S835、RF-S836、RF-S839 、RF-S850、RF-Y22 Standard 47CFRPart2.1093 DateofsamplereceiptNovember28,2025 TestdateNovember28,2025toDecember5,2025 IssuedateDecember5,2025 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangceTesting TechnologyCo.,Ltd. ReportNo.:CISRR25112622102 Reporttemplateversion:CISE-TR-001-A0Page:2of5 1.APPLICABLESTANDARD 47CFRPart2.1093:Radiofrequencyradiationexposureevaluation:portabledevices ANSIC95.1–3999:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadioFrequency ElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortableDevicesRF ExposureProceduresandEquipmentAuthorizationPolicies. 47CFRPart1.1307:Actionsthatmayhaveasignificantenvironmentaleffect,forwhichEnvironmental Assessments(EAs)mustbeprepared. 2.REPORTVERSION VersionNo.IssuedateDescription 00December5,2025Original ReportNo.:CISRR25112622102 Reporttemplateversion:CISE-TR-001-A0Page:3of5 3.RADIOSPECIFICATIONDESCRIPTION Bluetooth Supportedtype:BREDRLE-1Mbps LE-2Mbps Note:PleaserefertoRFreportfordetailedtechnicalspecifications 4.SIMULTANEOUSTRANSMISSIONANALYSIS ThesedevicesuseasingletransmittermoduleandantennaforbothBluetooth. ReportNo.:CISRR25112622102 Reporttemplateversion:CISE-TR-001-A0Page:4of5 5.TESTRESULT 5.1.Standalonetransmission Limit: KDB447498D01v06,Clause4.3.1a) For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-g SARtestexclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]*[√f(GHz)]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation31The resultisroundedtoonedecimalplaceforcomparison Thevalues3.0and7.5arereferredtoasnumericthresholdsinstepb)below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mm, andfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmaccordingto4.1f)isappliedtodetermine SARtestexclusion. Result: Passed TestData Radiotype 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 LimitResult BT2.402-0.031.751.7225.000.49133.00PASS Note #1:ThisvaluecomesfromtheRFtestreport. #2:Thisvalueisdeclaredbytheapplicant. #3:EIRP=Maximumoutputpower+Antennagain. #4:Thisvalueisdeclaredbytheapplicant. ReportNo.:CISRR25112622102 Reporttemplateversion:CISE-TR-001-A0Page:5of5 5.2.Simultaneoustransmission Limit: KDB447498D01v06,Clause4.3.2,47CFRPart1.1307 InthecaseofxedRFsourcesoperatinginthesametime-averagingperiod,orof multiplemobileorportableRFsourceswithinadeviceoperatinginthesametime averagingperiod,ifthesumofthefractionalcontributionstotheapplicablethresholds islessthanorequalto1asindicatedinthefollowingequation. Where a=numberoffxed,mobile,orportableRFsourcesclaimingexemptionusingparagraph (b)(3)(i)(B)ofthissectionforP,includingexistingexempttransmittersandthosebeing added. b=numberoffxed,mobile,orportableRFsourcesclaimingexemptionusingparagraph (b)(3)(i)(C)ofthissectionforThresholdERP,includingexistingexempttransmittersand thosebeingadded. c=numberofexistingfixed,mobile,orportableRFsourceswithknownevaluationforthespeci edminimumdistanceincludingexistingevaluatedtransmitters. P j =theavailablemaximumtime-averagedpowerortheERP,whicheverisgreater,forxed, mobile,orportableRFsourceiatadistancebetween0.5cmand40cm(inclusive). P th,j =theexemptionthresholdpower(P)accordingtoparagraph(b)(3)(i)(B)ofthissectionfor xed,mobile,orportableRFsourcei. ERP j =theERPoffixed,mobile,orportableRFsourcej. ERP th,j =exemptionthresholdERPforfixed,mobile,orportableRFsourcej,atadistanceofat leastλ/2πaccordingtotheapplicableformulaofparagraph(b)(3)(i)(C)ofthissection. Evaluated k =themaximumreportedSARorMPEoffixed,mobile,orportableRFsourcekeither inthedeviceoratthetransmittersitefromanexistingevaluationatthelocationofexposure. ExposureLimit k =eitherthegeneralpopulation/uncontrolledmaximumpermissibleexposure (MPE)orspecicabsorptionrate(SAR)limitforeachxed,mobile,orportableRFsourcek, asapplicablefrom§1.1310ofthischapter. Result:NotApplicable --------EndofReport--------

Test Report

1. Technicalindicatorsofproduct Antenna Data Sheet s FrequencyRange(MHz) 2400-2500 BandWidth(MHz) 100 Impedance(Ω) 50 VSWR 1.91MAX ReturnLoss(dB) -15.3 PeakGain(dBi) 1.75 PolarizationLinearVertical AntennaMaterial PCB OperatingTemp(°C) —20~65 StorageTemp(°C) —30~75 Antennamodelnumber 2.4GAntenna Manufacture:ShenzhenJLCTechnologyGroupCo.,Ltd. Address:No.2,ShangbaoRoad,JinghuaCommunity,Lianhua Sub-district,FutianDistrict,ShenzhenCity,27thFloor, OlympicBuilding 2. Productpicture 3.ReturnLoss 4.VSWR 5、TESTDATA: 2400431.6 2450501.75 2500481.68 6. 3Dgainpattern 7.E,hplan

Test Report

ReportNo.:CISRR25112622101 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of41 TESTREPORT ReportNo.CISRR25112622101 ProjectNo.CISR251126221 FCCID2BTC8-B07 ApplicantShenzhenRongfuTianchengIndustrialCo.,Ltd. Address BuildingD,11thFloor,ZoneBHuilongdaIndustrialParkShilong CommunityShiyanSubdistrictBao'anDistrictShenzhen ManufacturerShenzhenRongfuTianchengIndustrialCo.,Ltd. Address BuildingD,11thFloor,ZoneBHuilongdaIndustrialParkShilong CommunityShiyanSubdistrictBao'anDistrictShenzhen ProductNamesmartlock Trademark- Model/TypereferenceB07 ListedModel(s) B04、RF-S826、RF-S829、RF-S830、RF-S835、RF-S836、RF- S839、RF-S850、RF-Y22 Standard 47CFRPart15.247 DateofsamplereceiptNovember28,2025 TestdateNovember28,2025toDecember5,2025 IssuedateDecember5,2025 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu ReportNo.:CISRR25112622101 Page 2 of 41 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.Testsampleinformation.............................................................................................................................7 5.4.Environmentalconditions...........................................................................................................................7 5.5.Statementofthemeasurementuncertainty.............................................................................................7 5.6.EquipmentUsedduringtheTest................................................................................................................8 6.TESTRESULTS.............................................................................................................................................10 6.1.EvaluationResults(Evaluation)...............................................................................................................10 6.1.1.AntennaRequirement............................................................................................................................10 6.2.RadioSpectrumMatterTestResults(RF)...............................................................................................11 6.2.1.ConductedEmissionatACpowerline.................................................................................................11 6.2.2.6dBBandwidth........................................................................................................................................14 6.2.3.MaximumConductedOutputPower.....................................................................................................15 6.2.4.PowerSpectralDensity..........................................................................................................................16 6.2.5.Conductedbandedgeandspuriousemission...................................................................................17 6.2.6.Radiatedbandedgeemission...............................................................................................................18 6.2.7.RadiatedSpuriousEmission(below1GHz).........................................................................................24 6.2.8.RadiatedSpuriousEmission(Above1GHz)........................................................................................28 7.APPENDIXREPORT......................................................................................................................................36 7.1.ConductedOutputPower.........................................................................................................................36 7.2.PowerSpectralDensity.............................................................................................................................37 7.3.6dBBandwidth...........................................................................................................................................38 7.4.DutyCycle..................................................................................................................................................39 7.5.ConductedSpurious&BandEdgeEmission.........................................................................................40 Report…

Text truncated - open the document above for the full version.

Test Setup Photos

ReportNo.:CISRR25112622101 Page 43 of 49 8.TESTSETUPPHOTOS ConductedEmissionatACpowerline Radiatedbandedgeemission RadiatedSpuriousEmission(Above1GHz) ReportNo.:CISRR25112622101 Page 44 of 49 RadiatedSpuriousEmission(below1GHz)

Contact Information

Applicant

Wenchao Yang
[email protected]Fax: +8618598056512

Technical Contact

LOBOS IOWA INCHarley Li
[email protected]

4263 Bittercreek Dr Colorado Springs CO 80922 · United States

Test Firm

Shenzhen Bangce Testing Technology Co. , Ltd.Hans Hu
[email protected]

Technical Specifications

#Rule PartsFrequency RangePower Output
115C2.40 GHz - 2.48 GHz990.00 µW
Confidentiality
Long Term
Grant Notes
Power listed is maximum peak conducted output power. This filing meets the SAR threshold exclusion set forth in KDB 447498 and therefore can be used in mobile/portable configurations. The antenna used for this transmitter must not transmit simultaneously with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures. Users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance.

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