2AP9Z-SGW02Water Timer

FCCWarningStatement: Changesormodificationstothisunitnotexpresslyapprovedbythepartyresponsible forcompliancecouldvoidtheuser’sauthoritytooperatetheequipment.:This equipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigital device,pursuanttoPart15oftheFCCRules.Theselimitsaredesignedtoprovide reasonableprotectionagainstharmfulinterferenceinaresidentialinstallation.This equipmentgenerates,usesandcanradiateradiofrequencyenergyand,ifnot installedandusedinaccordancewiththeinstructions,maycauseharmful interferencetoradiocommunications.However,thereisnoguaranteethat interferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoescause harmfulinterferencetoradioortelevisionreception,whichcanbedeterminedby turningtheequipmentoffandon,theuserisencouragedtotrytocorrectthe interferencebyoneormoreofthefollowingmeasures: -Reorientorrelocatethereceivingantenna. -Increasetheseparationbetweentheequipmentandreceiver. - Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthe receiverisconnected. - Consultthedealeroranexperiencedradio/TVtechnicianforhelp. ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothe followingtwoconditions:(1)thisdevicemaynotcauseharmfulinterference,and(2) thisdevicemustacceptanyinterferencereceived,includinginterferencethatmay causeundesiredoperation. FCCRadiationExposureStatement Theantennasusedforthistransmittermustbeinstalledtoprovideaseparation distanceofatleast20cmfromallpersonsandmustnotbeco ‐ locatedforoperating inconjunctionwithanyotherantennaortransmitter.

DongguanE-ChiefElectronicTechnologiesCo.,Ltd. ModelDifference Productdescription:WaterTimer Modelname:SGW02 SGW01,SGW01W,SGW02W,SGW03,SGW03W,SGW04,SGW04W, SGW05,SGW05W,SGW06,SGW06W,SGW07,SGW07W,SGW08, SGW08W,SGW09,SGW09W,SGW10,SGW10W TradeName:N/A FCCID:2AP9Z-SGW02 AllthemodelarethesamecircuitandRFmodule,onlyformodelname. Regards Sincerely Client’ssignature: Client’sname/title:YEFENGYU(Generalmanager) Contactinformation/address:F5,NO.687,FuminRoad,DalangTown,DongguanCity,Guangdong Province,PRCChina

C5266091_X8_Ed.1 1/1 LetterofAuthorization <DongguanE-ChiefElectronicTechnologiesCo.,Ltd.> Company:DongguanE-ChiefElectronicTechnologiesCo.,Ltd. Address:F5,NO.687,FuminRoad,DalangTown,DongguanCity,Guangdong Province,PRCChina ProductName:WaterTimer ModelNumber:SGW02 SGW01,SGW01W,SGW02W,SGW03,SGW03W,SGW04, SGW04W,SGW05,SGW05W,SGW06,SGW06W,SGW07, SGW07W,SGW08,SGW08W,SGW09,SGW09W,SGW10, SGW10W FCCIdentifier:2AP9Z-SGW02 WeauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdelCarme,s/n, 08193Bellaterra,Spain,toactonourbehalfonallmattersconcerningthe abovenamedequipment. AnyindividualwithinLGAITechnologicalCenterS.A.isauthorizedtoactonour behalfandtakeactionontheapplication. WedeclarethatauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdel Carme,s/n,08193Bellaterra,Spain,isallowedtoforwardallinformation relatedtotheapprovalprojecttotheFederalCommunicationCommissionand todiscussanyissuesconcerningtheapprovalapplication.Anyandallacts carriedoutbyLGAITechnologicalCenterS.A.onourbehalfshallhavethe sameeffectasactsofourown. Name:YEFENGYUDate:2022-06-14 Title:Generalmanager Signatureofapplicant:

C5266091_X10_Ed.1 1/1 <DongguanE-ChiefElectronicTechnologiesCo.,Ltd.> OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Date:2022-06-14 Subject:RequestforConfidentiality FCCID:2AP9Z-SGW02 ToWhomItMayConcern, PursuanttotheprovisionsofSections0.457and0.459ofCommission'srules (47CFR0.457,0.459),wearerequestingtheCommissiontowithholdthefollowing attachment(s)asconfidentialdocumentfrompublicdisclosure. ExhibitsLong-Term Confidentiality Short-Term Confidentiality IDLabel/LocationNoNo AttestationStatementNoNo ExternalPhotosNo BlockDiagram Schematics TestReportNoNo TestSetupPhotosNo User’sManual InternalPhotos PartsList/TuneUp RFExposureInfo OperationalDescription CoverLetter(s)NoNo SDRSoftware/SecurityInfoNo Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. Sincerely, Signature: Name:YEFENGYU Title:Generalmanager

EUTPHOTO(ExternalPhotos) ※※※※※ENDOFREPORT※※※※※

Labelandlabellocation High:2cm Wide:3cm WaterTimer FCCID:2AP9Z-SGW02

EUTPHOTO(InternalPhotos) ※※※※※ENDOFREPORT※※※※※ ANT

FCCID:2AP9Z-SGW02 RFExposureEvaluation Limits Thecriterialistedinthefollowingtableshallbeusedtoevaluatetheenvironmentimpactofhumanexposure toradiofrequency(RF)radiationasspecifiedin1.1307(b) LimitsforMaximumPermissibleExposure(MPE) Frequencyrange (MHz) Electricfield strength (V/m) Magneticfieldstrength (A/m) Powerdensity (mW/cm 2 ) Averagingtime (minutes) (A)LimitsforOccupational/ControlledExposures 0.3–3.06141.63*(100)6 3.0–301842/f4.89/f*(900/f 2 )6 30–30061.40.1631.06 300–1500f/3006 1500–100,00056 (B)LimitsforGeneralPopulation/UncontrolledExposure 0.3–1.346141.63*(100)30 1.34–30824/f2.19/f*(180/f 2 )30 30–30027.50.0730.230 300–1500f/150030 1500–100,0001.030 f=frequencyinMHz Friistransmissionformula:Pd=(Pout*G)/(4*pi*r 2 ) Where Pd=powerdensityinmW/cm 2 ,Pout=outputpowertoantennainmW; G=gainofantennainlinearscale,Pi=3.1416; R=distancebetweenobservationpointandcenteroftheradiatorincm PdidthelimitofMPE,1mW/cm 2 .Ifweknowthemaximumgainoftheantennaandthetotalpowerinputto theantenna,throughthecalculation,wewillknowthedistancerwheretheMPElimitisreached. TestProcedure SoftwareprovidedbyclientenabledtheEUTtotransmitandreceivedataatlowest,middleandhighest channelindividually. TestResultofRFExposureEvaluation BLEmode Mode Outputpower toantenna (dBm) Outputpowerto antenna(mW) PowerDensityat R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result GFSK-1.4640.710.0001411.0PASS Remark:antennagain=0dBi

Project No.: ZKT-2205273557E Page 1 of 37 FCC TEST REPORT FCC ID:2AP9Z-SGW02 Report Number. .................................... : ZKT-2205273557E Date of Test ....................................................... : May. 27, 2022 to Jun. 17, 2022 Date of issue ......................................... : Jun. 17, 2022 Total number of pages..........................37 Test Result..........................................: PASS Testing Laboratory............................: Shenzhen ZKT Technology Co., Ltd. Address...............................................: 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Applicant's name.............................: Dongguan E-Chief Electronic Technologies Co., Ltd. Address ............................................... : F5, NO.687, Fumin Road, Dalang Town, Dongguan City, Guangdong Province, PRC China Manufacturer's name......................:Dongguan E-Chief Electronic Technologies Co., Ltd.. Address ............................................... : F5, NO.687, Fumin Road, Dalang Town, Dongguan City, Guangdong Province, PRC China Test specification: Standard................................................: FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2013 Test procedure ..................................... : / Non-standard test method................:N/A Test Report Form No........................: TRF-EL-111_V0 Test Report Form(s) Originator.....: ZKT Testing Master TRF........................................: Dated: 2020-01-06 This device described above has been tested by ZKT, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of ZKT, this document may be altered or revised by ZKT, personal only, and shall be noted in the revision of the document. Product name.....................................:Water Timer Trademark...........................................: N/A Model/Type reference......................:SGW02 SGW01, SGW01W, SGW02W, SGW03, SGW03W, SGW04, SGW04W, SGW05, SGW05W, SGW06, SGW06W, SGW07, SGW07W, SGW08, SGW08W, SGW09, SGW09W, SGW10, SGW10W Ratings .................................................. : Input:Battery 6V Project No.: ZKT-2205273557E Page 2 of 37 Testing procedure and testing location: Testing Laboratory.......................................:Shenzhen ZKT Technology Co., Ltd. Address............................................................:1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Jim Liu Tested by (name + signature).......................: Tom Zou Reviewer (name + signature).......................: Lake Xie Approved (name + signature).......................: Project No.: ZKT-2205273557E Page 3 of 37 Table of Contents Page 1.VERSION5 2.SUMMARY OF TEST RESULTS6 2.1 TEST FACILITY7 2.2 MEASUREMENT UNCERTAINTY7 3. GENERAL INFORMATION8 3.1 GENERAL DESCRIPTION OF EUT8 3.2 DESCRIPTION OF TEST MODES9 3.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED9 3.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE)10 3.5 EQUIPMENTS LIST FOR ALL TEST ITEMS11 4. EMC EMISSION TEST12 4.1 CONDUCTED EMISSION MEASUREMENT12 4.1.1 1POWER LINE CONDUCTED EMISSION LIMITS12 4.1.2 TEST PROCEDURE12 4.1.3 DEVIATION FROM TEST STANDARD13 4.1.4 TEST SETUP13 4.1.5 EUT OPERATING CONDITIONS13 4.1.6 TEST RESULTS14 4.2 RADIATED EMISSION MEASUREMENT14 4.2.1 RADIATED EMISSION LIMITS14 4.2.2 TEST PROCEDURE15 4.2.3 DEVIATION FROM TEST STANDARD15 4.2.4 TEST SETUP16 4.2.5 EUT OPERATING CONDITIONS17 5.RADIATED BAND EMISSION MEASUREMENT22 5.1 TEST REQUIREMENT:22 5.2 TEST PROCEDURE22 5.3 DEVIATION FROM TEST STANDARD22 5.4 TEST SETUP23 5.5 EUT OPERATING CONDITIONS23 5.6 TEST RESULT24 6.POWER SPECTRAL DENSITY TEST25 6.1 APPLIED PROCEDURES / LIMIT25 6.2 TEST PROCEDURE25 6.3 DEVIATION FROM STANDARD25 6.4 TEST SETUP25 Project No.: ZKT-2205273557E Page 4 of 37 Table of ContentsPage 6.5 EUT OPERATION CONDITIONS25 6.6 TEST RESULTS26 7. CHANNEL BANDWIDTH28 7.1 APPLIED PROCEDURES / LIMIT28 7.2 TEST PROCEDURE28 7.3 DEVIATION FROM STANDARD28 7.4 TEST SETUP28 7.5 EUT OPERATION CONDITIONS28 7.6 TEST RESULTS29 8.PEAK OUTPUT POWER TEST31 8.1 APPLIED PROCEDURES / LIMIT31 8.2 TEST PROCEDURE31 8.3 DEVIATION FROM STANDARD31 8.4 TEST SETUP31 8.5 EUT OPERATION CONDITIONS31 8.6 TEST RESULTS32 9. CONDUCTED BAND EDGE AND SPURIOUS EMISSION33 9.1 APPLICABLE STANDARD33 9.2 TEST PROCEDURE33 9.3 DEVIATION FROM STANDARD33 9.4 TEST SETUP33 9.5 EUT OPERATION CONDITIONS33 10.ANTENNA REQUIREMENT36 11. TEST SETUP PHOTO37 12. EUT CONSTRUCTIONAL DETAILS37 Project No.: ZKT-2205273557E Page 5 of 37 1.VERSION Report No.VersionDescriptionApproved ZKT-2205273557ERev.01Initial issue of reportJun. 17, 2022 Project No.: ZKT-2205273557E Page 6 of 37 2. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.247) , Subpart C Standard Section Test ItemJudgmentRemark FCC part 15.203/15.247 (c) Antenna requirementPASS FCC part 15.207AC Power Line Conducted EmissionPASS FCC part 15.247 (b)(3)Conducted Peak Output PowerPASS FCC part 15.247 (a)(2)Channel Bandwidth& 99% OCBPASS FCC part 15.247 (e)Power Spectral DensityPASS FCC part 15.247(d)Band EdgePASS FCC part 15.205/15.209Spurious EmissionPASS NOTE: (1)“N/A” denotes test is not applicable in this Test Report Project No.: ZKT-2205273557E Page 7 of 37 2.1 TEST FACILITY Shenzhen ZKT Technology Co., Ltd. Add. : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China FCC Test Firm Registration Number: 692225 Designation Number: CN1299 IC Registered No.: 27033 2.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U ， where expended uncertainty U is based on a standard uncertainty multiplied …

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EUTTESTPHOTO