2BUFB-PIR433PIR Sensor

EcosenseLtd 4,TheCapricornCentre,CranesFarmRd,BasildonSS143JJ,UnitedKingdom 1|Page AttestationStatements To:FederalCommunicationsCommissionDate:Jan.29,26 7435OaklandMillsRoad, Columbia,MD21046,USA Subject:AttestationofCompliancewithFCCCoveredListSoftwareRequirements FCCID:2BUFB-PIR433 ProductName:PIRSensor Thisletterservesasanattestationthattheequipmentidentifiedaboveisnot(selectone)"covered"software asdefinedundertheFederalCommunicationsCommission(FCC)CoveredListrequirements,asoutlined inFCC22-84andKDB986446. Specifically,theundersignedcertifiesthattheequipmentforwhichauthorizationissought: 1.Doesnotcontaincybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab, Inc.oranyofitssuccessors,assignees,parents,subsidiaries,affiliates,oranyentitythathasrebranded orrelabeledsoftwareproducedbytheaforementionedentities. 2.Doesnothavethecapabilitytostore,run,ordeliveranysoftwareidentifiedontheFCCCoveredList, includingbutnotlimitedtocybersecurityandanti-virussoftware. Tosupportthisattestation,theappendixevaluationdocumentationhasbeenpreparedandisincludedinthe certificationfiling. Thisattestationisbasedonathoroughevaluationofthedevice'sdesign,functionality,andsoftware environment.Theundersignedaffirmsthattheinformationprovidedisaccurateandcompletetothebestof theirknowledge. Sincerelyyours, PrintedName:StevenHardman Title:Director Address:4,TheCapricornCentre,CranesFarmRd,BasildonSS143JJ,UnitedKingdom Tel.:0044(0)1621841073 Email:[email protected] EcosenseLtd 4,TheCapricornCentre,CranesFarmRd,BasildonSS143JJ,UnitedKingdom 2|Page EvaluationregardingtotheCoveredListSoftware: Compliance Methodology EvaluationProcessResults Deviceis Inherent compliance ☒ TheChipset(s)usedislimitedtorun theCybersecurityoranti-virus software. Compliance ☒ TheMemoryusedislimitedtorunthe Cybersecurityoranti-virussoftware. Compliance ☒ Thereisstoragecapacitylimitationfor storeorinstalltheCybersecurityor anti-virussoftware. Compliance ☒ Operatingsystemusedislimitedto run,installordelivertheCybersecurity oranti-virussoftware. Compliance Deviceisnot Inherent compliance ☐ EvaluationBasedonSoftware BillofMaterials(SBoM) Seeattached“SBoM“ Note:TheSBoMcontentislimited tothescopeofcoveredlist software(e.g.antivirusand cybersecuritysoftware). ☐ EvaluationBasedonScanfor Softwareonthedevice ☐ EvaluationBasedonFilesystemscan ☐ EvaluationBasedonRunning softwarecheck

EcosenseLtd 4,TheCapricornCentre,CranesFarmRd,BasildonSS143JJ,UnitedKingdom AttestationStatements NotCoveredEntityApplicant&NotCoveredEquipment To:FederalCommunicationsCommissionDate:1/29/2026 7435OaklandMillsRoad, Columbia,MD21046,USA Ref:InformationRequiredbySection2.911(d)(5)(i)&(ii) FCCID:2BUFB-PIR433 EcosenseLtdcertifiesthat,asofthedateofthefilingoftheapplication,theapplicantisnotidentifiedon theCoveredList,establishedpursuantto§1.50002ofreferencechapter,asanentityproducing “covered”communicationequipment.Theequipmentforwhichauthorizationissoughtisnot“covered” telecommunicationsequipmentandvideosurveillanceequipmentproducedbyentitiesidentifiedonthe Commission’sCoveredListthatprohibitedfromreceivinganequipmentauthorizationpursuantto section§2.903oftheFCCrules. Sincerelyyours, PrintedName:StevenHardman Title:Director Address:4,TheCapricornCentre,CranesFarmRd,BasildonSS143JJ,UnitedKingdom Tel.:0044(0)1621841073 Email:[email protected]

2.911(d)(7)USAAgentv1.5 2.911(d)(7)USADesignatedAgentforServiceofProces Ecosense Ltd Section 2.911(d)(7) USA Agent for Service of Process Company name: Ecosense Ltd Address: 4, The Capricorn Centre, Cranes Farm Rd, Basildon SS14 3JJ, United Kingdom FCC ID: 2BUFB-PIR433 s We,[EcosenseLtd]designate[LinkwldLLC] NOTE1 forthepurposeofaccepting serviceofprocessonbehalfoftheapplicant. Applicantconsent:Weacknowledgeourconsenttoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipment,andatthephysicalU.S. addressandemailaddressofthedesignatedagentandacknowledgeour acceptanceofourobligationtomaintainanagentforserviceofprocessintheUnited Statesfornolessthanoneyearaftereitherwethegranteehavepermanently terminatedallmarketingandimportationoftheapplicableequipmentwithintheU.S., orattheconclusionofanyCommission-relatedadministrativeorjudicialproceeding involvingtheequipment,whicheverislater. Agentobligation:Weacknowledgeourobligationtoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipmentatourphysicalU.S. addressandemailaddressfornolessthanoneyearaftereitherthegranteehas permanentlyterminatedallmarketingandimportationoftheapplicableequipment withintheU.S.,orattheconclusionofanyCommission-relatedadministrativeor judicialproceedinginvolvingtheequipment,whicheverislater. USAAgentApplicant Companyname:LinkwldLLCCompanyname:EcosenseLtd USAAddress:7595TechnologyWaySte 100,Denver,CO80237,US Address:4,TheCapricornCentre,Cranes FarmRd,BasildonSS143JJ,United Kingdom FRNNumber:0033625682GranteeFRNNumber:0037870532 ContactName:TimothyZhu FCCGranteeCode:2BUFB TelephoneNo:(747)717-2691ContactName:StevenHardman Email:[email protected] TelephoneNo:0044(0)1621841073 Email:[email protected] Signature: Title:Manager Date:2026-01-26 Title: Director Date: 2026-01-26 Signature: EcosenseLtd 2.911(d)(7)USAAgentv1.5 NOTE1:AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforservice ofprocess. Reference;FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

EcosenseLtd 4,TheCapricornCentre,CranesFarmRd,BasildonSS143JJ,UnitedKingdom 1/29/2026 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:ConfidentialityRequestfor:FCCID:2BUFB-PIR433 PursuanttoSections0.457and0.459oftheCommission’sRules,weherebyrequestpermanent confidentialtreatmentoftheexhibitsaccompanyingthiscertificationapplicationasoutlinedbelow:  BlockDiagram Schematics  OperationalDescription Theaboveexhibitscontaintradesecretsand/orproprietaryinformationthatarenotpubliclyavailableand materialsthattheApplicanthasspentconsiderableeffortsindeveloping.Publicdisclosureofthesemay beharmfultotheApplicantandgiveanunfairadvantagetocompetitorsonthemarket. PursuanttoDA04-1705,theapplicantalsorequeststemporaryconfidentialtreatmentoftheexhibits outlinedbelowforaperiodof(upto180)daysfromthedateofequipmentauthorizationandpriorto marketingintheUnitedStatestopreventtheprematurereleaseofanysensitiveinformation.Applicantis awareoftheirresponsibilitytonotifyDERYCOMintheeventinformationregardingtheproductorthe productismadeavailabletothepublicbeforetherequestedperiodhasexpired. UserManual  InternalPhotos ExternalPhotos  TestSetupPhotos Sincerely, Title:Director Address:4,TheCapricornCentre,CranesFarmRd,BasildonSS143JJ,UnitedKingdom Tel.:0044(0)1621841073 Email:[email protected]

EcosenseLtd 4,TheCapricornCentre,CranesFarmRd,BasildonSS143JJ,UnitedKingdom 2026/1/28 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:AgentAuthorizationforFCCID:2BUFB-PIR433 I,theundersigned,herebyauthorize(ShenzhenAnbotekComplianceLaboratoryLimited.)toactonour behalfinallmattersrelatingtothisapplicationforequipmentcertification. Anyactcarriedoutby(ShenzhenAnbotekComplianceLaboratoryLimited.)shallhavethesameeffectas ourownandIacknowledgethatallresponsibilityforcomplyingwiththetermsandconditionsof certification,asspecifiedbyDERYCOMCERTIFICATIONSERVICES,INC.,stillresideswith(Ecosense Ltd). WecertifythatwearenotsubjecttoadenialoffederalbenefitsthatincludesFCCbenefitspursuantto Section5301oftheAnti-DrugAbuseActof1988,21U.S.C.§862,andthatnopartytotheapplication,as definedin47CFR§1.2002(b),issubjecttoadenialoffederalbenefitsthatincludesFCCbenefits pursuanttothatsection. Sincerely, PrintedName:StevenHardman Title:Director Tel.:0044(0)1621841073 Fax:N/A Email:[email protected]

LabelLocation Confirmtheuseofrealappearancephotosasreferences Labelsize: （ L:33mm*W:21mm ） ProductName:PIRSensor ModelNo.:PIRSensor FCCID:2BUFB-PIR433

FCCID:2BUFB-PIR433 RFEXPOSUREEVALUATION EUTSpecification EUTPIRSensor ModelNamePIRSensor Frequencyband(Operating)WLAN:2.412GHz~2.462GHz WLAN:5.18GHz~5.32GHz/5.50GHz~5.70GHz WLAN:5.745GHz~5825GHz Others(433.92MHz) DevicecategoryPortable(<20cmseparation) Mobile(>20cmseparation) Others___ AntennadiversitySingleantenna Multipleantennas Txdiversity Rxdiversity Tx/Rxdiversity Max.outputpower58.3dBuV/m(-36.958dBm)(0.0002015mW) EvaluationappliedMPEEvaluation SAREvaluation StandardRequirement PortableDevice 2.1093Radiofrequencyradiationexposureevaluation:portabledevices. Accordingto§15.247(i)and§1.1307b(1),systemsoperatingundertheprovisionsofthissection shallbeoperatedinamannerthatensuresthatthepublicisnotexposedtoradiofrequency energylevelsinexcessoftheCommission’sguidelines.SeeKDB447498D01GeneralRF ExposureGuidanceV6,section4.3.1. The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparation distances≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR, 16 where ·f(GHz)istheRFchanneltransmitfrequencyinGHz ·PoweranddistanceareroundedtothenearestmWandmmbeforecalculation17 ·Theresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50 mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmisappliedtodetermineSARtestexclusion. FCCID:2BUFB-PIR433 MeasurementResult Channel Frequency (GHz) MaxOutput power (dBm) Maxtune-up tolerance Outputpower (dBm) MaxOutput power (dBm) MaxOutput power (mW) Calculation Value (Note1) Threshold Value 0.43392-36.958-36.958±1-35.9580.0002540.00003343.0 power=TransmitterSpurious-95.2=58.3-95.2=-36.958dBm Note1:CalculationValue=[(max.powerofchannel,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]. Foxexample:0.000254/5* √ 0.43392= 0.0000334 ≤ 3.0 AccordingtoKDB447498D01V6,thresholdatwhichnoSARrequiredis≤3.0for1-gSAR, separationdistanceis5mm,andnosimultaneousSARmeasurementisrequired. TheSARmeasurementisnotnecessary.

Page 1 of 25 Code:AB-RF-05-b FCC Test Report Report No.:9812C5002221250101 Applicant:Ecosense Ltd Address: 4, The Capricorn Centre, Cranes Farm Rd, Basildon SS14 3JJ, United Kingdom Product Name:PIR Sensor Report Date:2026-02-07 Shenzhen Anbotek Compliance Laboratory Limited #资质章# #检测章# Report No.: 9812C5002221250101Page 2 of 25 FCC ID: 2BUFB-PIR433 Code:AB-RF-05-b Contents 1. General Information .............................................................................................................................5 1.1. Client Information ......................................................................................................................5 1.2. Description of Device (EUT) ......................................................................................................5 1.3. Auxiliary Equipment Used During Test......................................................................................6 1.4. Description of Test Configuration ..............................................................................................6 1.5. Description of Test Setup ..........................................................................................................7 1.6. Test Equipment List...................................................................................................................8 1.7. Measurement Uncertainty .........................................................................................................9 1.8. Description of Test Facility ........................................................................................................9 1.9. Disclaimer................................................................................................................................10 2. Summary of Test Results ..................................................................................................................11 3. Conducted Emission Test..................................................................................................................12 3.1. Test Standard and Limit ..........................................................................................................12 3.2. Test Setup ...............................................................................................................................12 3.3. Test Procedure ........................................................................................................................12 3.4. Test Data .................................................................................................................................12 4. Field Strength of Fundamental and Spurious Emission ....................................................................13 4.1. Test Standard and Limit ..........................................................................................................13 4.2. Test Setup ...............................................................................................................................14 4.3. Test Procedure ........................................................................................................................15 4.4. Test Data .................................................................................................................................15 5. 20dB Occupy Bandwidth Test ...........................................................................................................20 5.1. Test Standard and Limit ..........................................................................................................20 5.2. Test Setup ...............................................................................................................................20 5.3. Test Procedure ........................................................................................................................20 5.4. Test Data .................................................................................................................................21 6. Transmission Cease Time Test .........................................................................................................22 6.1. Test Standard and Limit ..........................................................................................................22 6.2. Test Setup ...............................................................................................................................22 6.3. Test Procedure ........................................................................................................................22 7. Antenna Requirement........................................................................................................................24 7.1. Test Standard and Requirement .............................................................................................24 7.2. Antenna Connected Construction ...........................................................................................24 APPENDIX I -- TEST SETUP PHOTOGRAPH .....................................................................................25 APPENDIX II -- EXTERNAL PHOTOGRAPH .......................................................................................25 APPENDIX III -- INTERNAL PHOTOGRAPH........................................................................................25 Report No.: 9812C5002221250101Page 3 of 25 FCC ID: 2BUFB-PIR433 Code:AB-RF-05-b TEST REPORT Applicant:Ecosense Ltd Manufacturer:Ecosense Ltd Product Name:PIR Sensor Model No.:PIR Sensor Trade Mark:N/A Rating(s): Input: AC 100V-240V, 0.2A Test Standard(s):47 CFR Part 15.231 Test Method(s):ANSI C63.10: 2020 The device described above is tested by Shenzhen Anbotek Compliance Laboratory Limited to determine the maximum emission levels emanating from the device and the severe levels of the device can endure and its performance criterion. The measurement results are contained in this test report and Sh…

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ANTENNASPECIFICATION Summary ModelName433ANT AzimuthBeam Pattern Omni-directional Impedance50Ohm AntennaLength Manufacture 120mm sEcosenseLtd ANTShapeSingle-stageAntenna Address 4,TheCapricornCentre,CranesFarmRd,BasildonSS143JJ, UnitedKingdom AntennaPhoto&Length(mm)