2BNZX-KT02WATER QUALITY TESTER

(Actol(Shenzhen)TechnologyCo.,LTD.) (Jan14.2026) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(i)requestfor(FCCID:2BNZX-KT02) [Actol(Shenzhen)TechnologyCo.,LTD.](“theapplicant”)certifiesthattheequipment forwhichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceiving anequipmentauthorizationpursuanttosection2.903oftheFCCrules. Wealsocertifythat,asofthedateofthefilingoftheapplication,theequipmentdoes notutilizecyber-securityoranti-virussoftwarefromKasperskyLab,Inc,oranyofits successorsandassignees,whichisalsoonthe“coveredlist”. Sincerely, (Applicantsignature): (Applicantprintedname):XIAOLU (Actol(Shenzhen)TechnologyCo.,LTD.) (Jan14.2026) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(ii)requestfor(FCCID:2BNZX-KT02) [Actol(Shenzhen)TechnologyCo.,LTD.](“theapplicant”)certifiesthat,asofthedateof thefilingoftheapplication,theapplicantisnotidentifiedontheCoveredListasan entityproducing“covered”equipment. Sincerely, (Applicantsignature): (Applicantprintedname):XIAOLU

AttestationStatements (Jan14,2026) TO:FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046,USA RE:AttestationStatementsPart2.911(d)(7)requestfor(FCCID:2BNZX-KT02) (Actol(Shenzhen)TechnologyCo.,LTD.),theundersigned,herebyauthorizeXINNAISI INC.toactasourdesignatedU.S.agentforserviceofprocess, (Actol(Shenzhen)TechnologyCo.,LTD.)acceptstomaintainanagentfornolessthan oneyearafterthegranteehasterminatedallmarketingandimportationorthe conclusionofanyCommission-relatedproceedinginvolvingtheequipment. XINNAISIINCacceptstheresponsibilitytoactasdesignatedU.S.agentforserviceof process. ApplicantInformation： CompanyName:Actol(Shenzhen)TechnologyCo.,LTD. ContactName:XIAOLU Address:2409H12HuarongBuilding,No.178MintianRoad, FutianCommunity,FutianStreet,FutianDistrict,Shenzhen,China FRN:0036745578 TelephoneNo:+86-18122050790 Email:[email protected] Signature [XIAOLU] U.S.AgentInformation: CompanyName:XINNAISIINC Address:1500NGRANTSTSTER,DENVER,CO80203 FRN:0037518289 ContactName:KiKi TelephoneNo:+01(951)893-3011 Email:[email protected] Signature [KiKi]

Actol(Shenzhen)TechnologyCo.,LTD. (2026-01-14) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:CONFIDENTIALITYREQUESTFOR(WATERQUALITYTESTER/KT02 /FCCID：2BNZX-KT02) ToWhomItMayConcern: Thisletterservesasanofficialrequestforconfidentialityundersections0.457and0.459 ofCFR47.Wehaverequestedthatthe SchematicDiagram BlockDiagram OperationalDescription Requiredtobesubmittedwiththisapplicationbepermanentlywithheldfrompublic review. Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. Pleasecontactmeifthereisanyinformationyoumayneed. Sincerely, Signature XIAOLU/Manager Date/City:Shenzhen Phone:+86-18122050790 Fax:+86-18122050790 E-mail:[email protected]

Actol(Shenzhen)TechnologyCo.,LTD. (2026-01-14) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorize (ShenzhenHongBiaoCertification&TestingCo.,Ltd Room102,201,Building2,YuanwangguRFIDIndustrialPark,TongguanRoad,Tianliao Community,YutangStreet,GuangmingDistrict,Shenzhen,China LeoSu [email protected]) toactonourbehalfinallmattersrelatingtoapplicationforequipmentauthorization,including thesigningofalldocumentsrelatingtothesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothe denialofbenefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseAct of1988,21U.S.C.853(a). Thisagreementexpiresoneyearfromthecurrentdate. Sincerely, XIAOLU/Manager Date/City:2026-01-14/ Phone:+86-18122050790 Fax:+86-18122050790 E-mail:[email protected]

Actol(Shenzhen)TechnologyCo.,LTD. (2026-01-14) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:ShortTermConfidentialityRequestFor：WATERQUALITYTESTER/KT02 /FCCID：2BNZX-KT02 ToWhomItMayConcern: Inaccordancewithsections0.457and0.459ofCFR47,<Actol(Shenzhen)Technology Co.,LTD.>.requestsshort-termConfidentialityoffollowingsectionsofthisapplication foraperiodof45daysaftergrantisissued. Testsetupphotos externalphoto Internalphotos User’smanual Thesedocumentscontaindetailedsystemandequipmentdescriptionsandrelated informationabouttheproduct,which< Actol(Shenzhen)TechnologyCo.,LTD. >considers tobeproprietary,confidential,andacustomdesignandotherwise,wouldnotreleaseto thegeneralpublic.Sincethisdesignisabasisfromwhichfuturetechnologicalproducts willevolve,<Actol(Shenzhen)TechnologyCo.,LTD.>feelsthatthisinformationwould beofbenefittoitscompetitors,andthatthedisclosureoftheinformationinthese documentswouldgiveourcompetitorsanunfairadvantageinthemarket. Pleasecontactmeifthereisanyinformationyoumayneed. Sincerely, XIAOLU/Manager Date/City:2026-01-14/ Phone:+86-18122050790 Fax:+86-18122050790 E-mail:[email protected]

version01 Actol(Shenzhen)TechnologyCo.,LTD. Modeldifferencestatement Itisherebydeclaredthattheproduct FCCID:2BNZX-KT02 ProductName:WATERQUALITYTESTER Model(s):KT02,KT03,KT04,KT05,KT06,KT07 Theabove-mentionedproductssharethesamecircuitry,PCBlayout,electricalcomponents,materials, circuitstructureanddecorativeaccessories'materials.However,theirshapesandsizesarethesame, whiletheircolorsaredifferent. Sincerely, Signature Name:XIAOLU Title:Manager ApplicantCompany:Actol(Shenzhen)TechnologyCo.,LTD.

FCCID:2BNZX-KT02 FCCLabelSample FCCLabelSpecifications TextisBlackincolorandisjustified.Labelsareprintedinindelibleinkonpermanent adhesivebackingorsilk-screenedontotheEUTorshallbeaffixedataconspicuouslocation ontheEUT.WheretheEUTisconstructedintwoormoresectionsconnectedbywiresand marketedtogether,theabovestatementisrequiredtobeaffixedonlytothemaincontrol unit.WhentheEUTissosmallorforsuchusethatitisnotpracticabletoplacethestatement onit,theaboveinformationshallbeplacedinaprominentlocationintheinstructionmanual orpamphletsuppliedtotheuseror,alternatively,shallbeplacedonthecontainerinwhich thedeviceismarketed. FCCLabelLocation Size:10mm*8mm LabelLocation FCCID:2BNZX-KT02

FCCID:2BNZX-KT02 RFExposureEvaluation AccordingtoKDB447498D01GeneralRFExposureGuidancev06andpart2.1093，Unlessspecifically requiredbythepublishedRFexposureKDBprocedures,standalone1-gheadorbodyand10-g extremitySARevaluationforgeneralpopulationexposureconditions,bymeasurementornumerical simulation,isnotrequiredwhenthecorrespondingSARTestExclusionThresholdcondition(s),listed below,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSARtestexclusion thresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Here, ThedevicehasbeenevaluatedtomeetgeneralRFexposurerequirement.Thedevicecanbeusedin portableexposureconditionwithoutrestriction. ForBLE Max Conducted Power(dBm) Tune-up Power(dBm) Max Tune-up Power(dBm) Max Power(W)Frequency(MHz) Min. distance(mm) Calc. thresholds limit -13.890(±1)-12.890.00005081W24405 0.0005 3.0 SoaSARtestisnotrequired

ReportNo.:RFI-LAB-RF-202312-LL14 QP030-E41 Page1of9 TestingReport CustomerName:ShenzhenLinshangTechnologyCo.,Ltd. ProductName:BTModule SampleModel:RF-BM-PHY6222 ReferenceStandard:GB/T9410-2008;ANSI/IEEEStd149-1979 IssueDate:2023.12.21 Engineer:Date: Auditor:Date: Approver:Date: ReportNo.:RFI-LAB-RF-202312-LL14 QP030-E41 Page2of9 Version VersionNo.DateDescriptionFormulateApproval A02023.12.21Forthefirsttime,formulateZkrisEason Contents 1.GeneralInformation.........................................................................................................................3 1.1Generalinformationoftestinginstitutions...........................................................................3 1.2Testingprinciple...................................................................................................................3 1.3Testequipment......................................................................................................................4 1.4Testenvironment...................................................................................................................4 1.5Statement..............................................................................................................................4 2.SampleInformation.........................................................................................................................5 2.1Clientinformation.................................................................................................................5 2.2DescriptionofEUT(S)..........................................................................................................5 2.3EUTappearance....................................................................................................................6 2.4EUTsetupphotooffreespaceOTAtesting.........................................................................6 3.TestResults......................................................................................................................................7 3.1Teststandard.........................................................................................................................7 3.2Testuncertainty.....................................................................................................................7 3.3Testdata................................................................................................................................7 3.3.1Typicalfreespaceefficiencyandgain......................................................................7 3.3.2Typicalfreespaceradiationpattern...........................................................................8 （Thefollowingisblank）................................................................................................................9 ReportNo.:RFI-LAB-RF-202312-LL14 QP030-E41 Page3of9 1.GeneralInformation 1.1Generalinformationoftestinginstitutions Name ShenzhenRFI-LABCommunicationTechnologyCo.,Ltd. Address 103Building1TingweilndustrialPark,No.6,LiufangRoad,Zone 67Xingdong,Xin'anSubdistrict,Bao'anDistrict,Shenzhen,Guangdong,China Tel 13682621346 E-mail [email protected] Equipment Alltheequipmentusedinthereportisfixedin103Building1Tingweilndustrial Park,No.6,LiufangRoad,Zone67Xingdong,Xin'anSubdistrict,Bao'anDistrict, Shenzhen,Guangdong,China 1.2Testingprinciple ReportNo.:RFI-LAB-RF-202312-LL14 QP030-E41 Page4of9 1.3Testequipment EquipmentModelNo.SerialNo.Manufacturer Calibration date Next calibration date OTATest System RayZone-5000 RFI-LAB-RF -D00 GTS2023.3.142025.3.13 Network Analyzer E5071C RFI-LAB-RF -D01 KEYSIGHT2023.5.112024.5.10 Network Analyzer E5071C RFI-LAB-RF -C02 KEYSIGHT2023.5.112024.5.10 1.4Testenvironment Temperature 23.1°C Humidity 57%RH Pressure 100.17kPa 1.5Statement (1)Thetestresultsinthereportareonlyapplicabletothetestedsamplesandthetestedsamples workundertheenvironmentdescribedinthereport. (2)OnlyShenzhenRFI-LABCommunicationTechnologyCo.,Ltd.havetherighttomodifythe report,andthemodificationinformationshallbeannotatedintherevisionform. (3)Anyobjectiontothisreportshallberaisedwithin30daysafterformalconfirmationofthe report. (4)Thisreportisinvalidifthereisanyevidencethatthesampleinformationprovidedisfalsified. (5)Thereportisinvalidwithoutthesignatureoftheauditorandapprover. ReportNo.:RFI-LAB-RF-202312-LL14 QP030-E41 Page5of9 2.SampleInformation 2.1Clientinformation Name ShenzhenLinshangTechnologyCo.,Ltd. Address 4F,NanTianHuiCommercialBuilding,Xinan2ndRoad,Baoan, Shenzhen,518101,China Contacts Hujianming Tel 13510906802 E-mail [email protected] Manufacturer ShenzhenLinshangTechnologyCo.,Ltd. 2.2DescriptionofEUT(S) ProductName BTModule SampleModel RF-BM-PHY6222 AntennaSize / AntennaType PCBAntenna TestItem Antennagain;Efficiency;Radiationpattern FrequencyRange 2400MHz-2500MHz ReceivedDate 2023.12.21 TestDate 2023.12.21 Remark / ReportNo.:RFI-LAB-RF-202312-LL14 QP030-E41 Page6of9 2.3EUTappearance 2.4 EUTsetupphotooffreespaceOTAtesting Planform Frontview ReportNo.:RFI-LAB-RF-202312-LL14 QP030-E41 Page7of9 3.TestResults 3.1Teststandard NameParameterMethodStandardno. Mobile communication antenna Antennagain Genericspecification forantennasusedinthe mobilecommunications GB/T 9410-2008 Radiationpattern Antenna Radiationefficiency IEEEStandardTest ProceduresforAntennas ANSI/IEEEStd 149-1979 Gainanddirectivity 3.2Testuncertainty TheuncertaintywascalculatedonthebasisoftheGUMpublishedbyISO,usingthe inclusionfactorofK=2andthe95%confidenceleveltoexpresstheextended uncertainty. ItemUncertainty Antennagain±0.72dB Radiationefficiency±0.72dB 3.3Testdata 3.3.1Typicalfreespaceefficiencyandgain Frequency/MHz24002410242024302440245024602470248024902500 PeakGain/dBi -5.10-4.86-4.46-4.23-4.08-3.65-3.24-2.97-2.89-2.52-2.43 Efficiency/% 8.198.699.429.7810.3711.1611.9712.5112.4213.2813.96 ReportNo.:RFI-LAB-RF-202312-LL14 QP030-E41 Page8of9 3.3.2Typicalfreespaceradiationpattern (1)X-ZPlane(unit:dBi): (2)Y-ZPlane(unit:dBi): ReportNo.:RFI-LAB-RF-2023…

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-Page 1 of 38 -ReportNo.:HB20251127006E-01 Add:Room102,201,Building2,YuanwangguRFIDIndustrialPark,TongguanRoad,TianliaoCommunity,YutangStreet,GuangmingDistrict,Shenzhen,China Tel:(86-755)29989321Fax:(86-755)29985110Web:www.sz-hongbiao.com TestReport Product: WATERQUALITYTESTER TradeMark: N/A ModelNumber: KT02,KT03,KT04,KT05,KT06,KT07 FCCID: 2BNZX-KT02 Preparedfor Actol(Shenzhen)TechnologyCo.,LTD. 2409H12HuarongBuilding,No.178MintianRoad, FutianCommunity,FutianStreet,FutianDistrict,Shenzhen,China Preparedby ShenzhenHongBiaoCertification&TestingCo.,Ltd. Room102,201,Building2,YuanwangguRFIDIndustrialPark,Tongguan Road,TianliaoCommunity,YutangStreet,GuangmingDistrict,Shenzhen, China Tel.:+86-755-29989321Fax.:+86-755-29985110 Website:http://www.sz-hongbiao.com -Page 2 of 38 -ReportNo.:HB20251127006E-01 Add:Room102,201,Building2,YuanwangguRFIDIndustrialPark,TongguanRoad,TianliaoCommunity,YutangStreet,GuangmingDistrict,Shenzhen,China Tel:(86-755)29989321Fax:(86-755)29985110Web:www.sz-hongbiao.com TableofContents 1GENERALDESCRIPTION........................................................................................................................................6 1.1DESCRIPTIONOFEUT.................................................................................................................................................6 1.2TESTMODE...............................................................................................................................................................6 1.3OPERATIONCHANNELLIST...........................................................................................................................................7 1.4TESTSETUP...............................................................................................................................................................7 1.5POWERSETTINGCONFIGURATIONPARAMETERS................................................................................................................7 1.6ANCILLARYEQUIPMENT...............................................................................................................................................7 2SUMMARYOFTESTRESULT..................................................................................................................................8 3TESTFACILITIESANDACCREDITATIONS................................................................................................................9 3.1TESTLABORATORY......................................................................................................................................................9 3.2ENVIRONMENTALCONDITIONS......................................................................................................................................9 3.3MEASUREMENTUNCERTAINTY......................................................................................................................................9 3.4TESTSOFTWARE.......................................................................................................................................................10 4LISTOFTESTEQUIPMENT...................................................................................................................................11 5TESTITEMANDRESULTS....................................................................................................................................13 5.1ANTENNAREQUIREMENT...........................................................................................................................................13 5.1.1StandardRequirement..............................................................................................................................13 5.1.2TestResult..................................................................................................................................................13 5.2CONDUCTEDEMISSION..............................................................................................................................................14 5.2.1Limits..........................................................................................................................................................14 5.2.2TestProcedures..........................................................................................................................................14 5.2.3TestSetup...................................................................................................................................................15 5.2.4TestResult..................................................................................................................................................15 5.3RADIATEDEMISSION.................................................................................................................................................17 5.3.1Limits..........................................................................................................................................................17 5.3.2TestProcedures..........................................................................................................................................17 5.3.3TestSetup...................................................................................................................................................17 5.3.4TestResult..................................................................................................................................................18 5.3.5BandEdge-Radiated................................................................................................................................22 5.3.6Spuriousemissioninrestrictedband1000MHz-25000MHz....................................................................23 5.4PEAKOUTPUTPOWER..............................................................................................................................................2…

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