2AMV5-SK521-W-A2-outlet simultaneously controlled indoor wifi smart plug

On/off button socket USER MANUAL One button FCC STATEMENT : 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. Warning: 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 ha s 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 interfe rence 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 This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. SK521-W is a kind of socket the power of which can be controlled by the Internet with its connection to the Internet through WiFi. Where there is Internet, users can achieve the on/off control of the power and the status display of the socket through the smart phone APP. Meanwhile, customers are also able to control the R F wireless socket and the light. SK521-W uses smartconfig to configure the Internet ,which is simple and convenient and can support timer function settings .The user is able to set up the socekt according to his light ,and the electric cooker locally or remotely.At the same time ,the user can also set up kind of contextual models and enjoy the convenient life brought about by the Wifi smart system. SK521-W is an Internet hardware device specially designed for smart phone control of family appliances.With mobile phone software,the related appliance swithers and the light and color temperature of lights can be controlled through the phone interface. Below we introduce how to install the smart app and use the SK521-W FCC STATEMENT : 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. Warning: 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. FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.

FCCID:2AMV5-SK521-W-A

LabelLocationOnEUT Label ProductName:2-outletsimultaneouslycontrolledindoor wifismartplug ModelNo.:SK521-W FCCID:2AMV5-SK521-W-A ThisdevicecomplieswithPart15oftheFCCRules.Operation issubjecttothefollowingtwoconditions: (1)Thisdevicemaynotcauseharmfulinterference,and (2)Thisdevicemustacceptanyinterferencereceived,including interferencethatmaycauseundesiredoperation.

FCCID:2AMV5-SK521-W-A ANT

version01 ChangxingPotekElectronics&TechnologyCo.,Ltd. DeclarationconcerningAntennaSpecification Itisherebydeclaredthattheproduct ModelNo.:SK521-W,SK552-W FCCID:2AMV5-SK521-W-A fulfillstherequirementinFCCtestrelatingtotheantennatype. ThedevicespecifiedaboveconfirmstotheFCCrecommendationsforinternalantennatype(s) describedbelow: ModelNo.ofantenna:N/A Typeofantenna:PCBAntenna Gainoftheantenna:0dBi Frequencyrange:802.11b/g/n(HT20):2412-2462MHz 802.11n(HT40):2422-2452MHz Themountingoftheantennaisfixedtotheradiomoduleandnootherantennashouldbeused. Companyname: ChangxingPotekElectronics&TechnologyCo.,Ltd. Address:No.1218,TaihuAvenue,TaihuSubdistrict,ChangxingCounty,HuzhouCity,Zhejiang, P.R.C. City:HuzhouCity ZIP/Postalcode:N/A Country:China Place:ChinaDate: 2021-06-29 Signature:

RFEXPOSUREEVALUATION AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeusedto evaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF)Radiation asspecifiedin§1.1307(b) FCCID:2AMV5-SK521-W-A EUTSpecification EUT2-outletsimultaneouslycontrolledindoorwifismartplug Frequencyband(Operating) WLAN:2.412GHz~2.462GHz WLAN:5.18GHz~5.32GHz/5.50GHz~5.70GHz WLAN:5.745GHz~5825GHz Others: DevicecategoryPortable(<20cmseparation) Mobile(>20cmseparation) Others___ ExposureclassificationOccupational/Controlledexposure(S=5mW/cm2) GeneralPopulation/Uncontrolledexposure(S=1mW/cm2) AntennadiversitySingleantenna Multipleantennas Txdiversity Rxdiversity Tx/Rxdiversity Max.outputpower21.15dBm(0.1303W) Antennagain(Max)0dBi EvaluationappliedMPEEvaluation SAREvaluation LimitsforMaximumPermissibleExposure(MPE) Frequency Range(MHz) ElectricField Strength(V/m) MagneticField Strength(A/m) Power Density(mW/cm 2 ) Average Time (A)LimitsforOccupational/ControlExposures 300-1500----F/3006 1500-100000----56 (B)LimitsforGeneralPopulation/UncontrolExposures 300-1500----F/15006 1500-100000----130 Friistransmissionformula:Pd=(Pout*G)\(4*pi*R2) Where Pd=PowerdensityinmW/cm 2 Pout=outputpowertoantennainMw G=gainofantennainlinearscale Pi=3.1416 R=distancebetweenobservationpointandcenteroftheradiatorincm PdthelimitofMPE,1mW/cm2.Ifweknowthemaximumgainoftheantennaand totalpowerinputtotheantenna,throughthecalculation,wewillknowthedistance wheretheMPElimitisreached. MeasurementResult Operating Mode Channel Frequency Measured Power Tuneup tolerance Max.Tune upPower Antenna Gain Powerdensity at20cm Power density Limits (mW/cm2) (MHz)(dBm)(dBm)(dBm)(dBi)(mW/cm2) 802.11b 241221.1521.15±122.150 0.0326 1 243720.8120.81±121.810 0.0302 1 246220.4520.45±121.450 0.0278 1 802.11g 241215.6115.61±116.610 0.0091 1 243715.0815.08±116.080 0.0081 1 246214.6914.69±115.690 0.0074 1 802.11n(20) 241215.5215.52±116.520 0.0089 1 243714.9414.94±115.940 0.0078 1 246214.5114.51±115.510 0.0071 1 802.11n(HT40) 242214.2614.26±115.260 0.0067 1 243713.8213.82±114.820 0.0060 1 245213.4513.45±114.450 0.0055 1

Page 1 of 47 Appendix Test Data Report No.:18220WC10100501Test Date:2021.6.1 Test Engineer:Auditor: Temperature:22.3 °C Relative Humidity:55 % Pressure:1012 hPa 1. Duty Cycle 1.1 Ant1 1.1.1 Test Result Ant1 Mode TX Type Frequency (MHz) RU RU Pos T_on (ms) Period (ms) Duty Cycle (%) Duty Cycle Correction Factor (dB) Max. DC Variation (%) 802.11bSISO 2412//8.368.4798.700.060.12 2437//8.388.4798.940.050.12 2462//8.368.4798.700.060.12 802.11gSISO 2412//1.391.4198.440.070.12 2437//1.391.4198.370.070.12 2462//1.391.4198.510.070.10 802.11n (HT20) SISO 2412//1.301.3298.560.060.00 2437//1.301.3298.560.060.00 2462//1.301.3298.480.070.00 802.11n (HT40) SISO 2422//100.00100.00100.000.000.00 2437//100.00100.00100.000.000.00 2452//100.00100.00100.000.000.00 Page 2 of 47 1.1.2 Test Graph 802.11b_LCH_2412MHz_Ant1 (SISO)_NTNV 802.11b_MCH_2437MHz_Ant1 (SISO)_NTNV 802.11b_HCH_2462MHz_Ant1 (SISO)_NTNV Page 3 of 47 802.11g_LCH_2412MHz_Ant1 (SISO)_NTNV 802.11g_MCH_2437MHz_Ant1 (SISO)_NTNV Page 4 of 47 802.11g_HCH_2462MHz_Ant1 (SISO)_NTNV 802.11n(HT20)_LCH_2412MHz_Ant1 (SISO)_NTNV Page 5 of 47 802.11n(HT20)_MCH_2437MHz_Ant1 (SISO)_NTNV 802.11n(HT20)_HCH_2462MHz_Ant1 (SISO)_NTNV Page 6 of 47 802.11n(HT40)_LCH_2422MHz_Ant1 (SISO)_NTNV 802.11n(HT40)_MCH_2437MHz_Ant1 (SISO)_NTNV Page 7 of 47 802.11n(HT40)_HCH_2452MHz_Ant1 (SISO)_NTNV 2. Bandwidth Page 8 of 47 2.1 OBW 2.1.1 Test Result ModeTX TypeFrequency (MHz)RU RU Pos 99% Occupied Bandwidth (MHz) Limit (MHz)Verdict Ant1 802.11bSISO 2412//15.286/Note1 2437//15.270/Note1 2462//15.293/Note1 802.11gSISO 2412//17.555/Note1 2437//17.559/Note1 2462//17.549/Note1 802.11n (HT20) SISO 2412//18.433/Note1 2437//18.423/Note1 2462//18.420/Note1 802.11n (HT40) SISO 2422//35.778/Note1 2437//35.783/Note1 2452//35.764/Note1 Note1: Only for Report Use 2.1.2 Test Graph 802.11b_LCH_2412MHz_Ant1 (SISO)_NTNV 802.11b_MCH_2437MHz_Ant1 (SISO)_NTNV Page 9 of 47 802.11b_HCH_2462MHz_Ant1 (SISO)_NTNV 802.11g_LCH_2412MHz_Ant1 (SISO)_NTNV Page 10 of 47 802.11g_MCH_2437MHz_Ant1 (SISO)_NTNV 802.11g_HCH_2462MHz_Ant1 (SISO)_NTNV Page 11 of 47 802.11n(HT20)_LCH_2412MHz_Ant1 (SISO)_NTNV 802.11n(HT20)_MCH_2437MHz_Ant1 (SISO)_NTNV Page 12 of 47 802.11n(HT20)_HCH_2462MHz_Ant1 (SISO)_NTNV 802.11n(HT40)_LCH_2422MHz_Ant1 (SISO)_NTNV Page 13 of 47 802.11n(HT40)_MCH_2437MHz_Ant1 (SISO)_NTNV 802.11n(HT40)_HCH_2452MHz_Ant1 (SISO)_NTNV Page 14 of 47 Page 15 of 47 2.2 XDB 2.2.1 Test Result ModeTX TypeFrequency (MHz)RU RU Pos 6dB Bandwidth (MHz) Limit (MHz)Verdict Ant1 802.11bSISO 2412//12.075>=0.5Pass 2437//12.094>=0.5Pass 2462//12.084>=0.5Pass 802.11gSISO 2412//15.180>=0.5Pass 2437//15.178>=0.5Pass 2462//15.183>=0.5Pass 802.11n (HT20) SISO 2412//13.824>=0.5Pass 2437//13.830>=0.5Pass 2462//13.824>=0.5Pass 802.11n (HT40) SISO 2422//35.113>=0.5Pass 2437//35.114>=0.5Pass 2452//35.109>=0.5Pass 2.2.2 Test Graph 802.11b_LCH_2412MHz_Ant1 (SISO)_NTNV 802.11b_MCH_2437MHz_Ant1 (SISO)_NTNV Page 16 of 47 802.11b_HCH_2462MHz_Ant1 (SISO)_NTNV 802.11g_LCH_2412MHz_Ant1 (SISO)_NTNV Page 17 of 47 802.11g_MCH_2437MHz_Ant1 (SISO)_NTNV 802.11g_HCH_2462MHz_Ant1 (SISO)_NTNV Page 18 of 47 802.11n(HT20)_LCH_2412MHz_Ant1 (SISO)_NTNV 802.11n(HT20)_MCH_2437MHz_Ant1 (SISO)_NTNV Page 19 of 47 802.11n(HT20)_HCH_2462MHz_Ant1 (SISO)_NTNV 802.11n(HT40)_LCH_2422MHz_Ant1 (SISO)_NTNV Page 20 of 47 802.11n(HT40)_MCH_2437MHz_Ant1 (SISO)_NTNV 802.11n(HT40)_HCH_2452MHz_Ant1 (SISO)_NTNV Page 21 of 47 Page 22 of 47 3. Maximum Conducted Output Power 3.1 Power 3.1.1 Test Result ModeTX TypeFrequency (MHz)RU RU Pos Measured Peak Output Power (dBm) Limit (dBm)Verdict Ant1 802.11bSISO 2412//21.15<=30Pass 2437//20.81<=30Pass 2462//20.45<=30Pass 802.11gSISO 2412//15.61<=30Pass 2437//15.08<=30Pass 2462//14.69<=30Pass 802.11n (HT20) SISO 2412//15.52<=30Pass 2437//14.94<=30Pass 2462//14.51<=30Pass 802.11n (HT40) SISO 2422//14.26<=30Pass 2437//13.82<=30Pass 2452//13.45<=30Pass Note1: Antenna Gain: 0 dBi; Page 23 of 47 4. Maximum Power Spectral Density 4.1 PSD 4.1.1 Test Result ModeTX TypeFrequency (MHz)RU RU Pos Maximum PSD (dBm/3kHz) Limit (dBm/3kHz) Verdict Ant1 802.11bSISO 2412//-6.59<=8Pass 2437//-6.16<=8Pass 2462//-7.15<=8Pass 802.11gSISO 2412//-16.96<=8Pass 2437//-16.76<=8Pass 2462//-17.67<=8Pass 802.11n (HT20) SISO 2412//-16.17<=8Pass 2437//-17.10<=8Pass 2462//-18.20<=8Pass 802.11n (HT40) SISO 2422//-20.74<=8Pass 2437//-21.08<=8Pass 2452//-21.49<=8Pass Note1: Antenna Gain: 0 dBi; 4.1.2 Test Graph 802.11b_LCH_2412MHz_Ant1 (SISO)_NTNV 802.11b_MCH_2437MHz_Ant1 (SISO)_NTNV Page 24 of 47 802.11b_HCH_2462MHz_Ant1 (SISO)_NTNV 802.11g_LCH_2412MHz_Ant1 (SISO)_NTNV Page 25 of 47 802.11g_MCH_2437MHz_Ant1 (SISO)_NTNV 802.11g_HCH_2462MHz_Ant1 (SISO)_NTNV Page 26 of 47 802.11n(HT20)_LCH_2412MHz_Ant1 (SISO)_NTNV 802.11n(HT20)_MCH_2437MHz_Ant1 (SISO)_NTNV Page 27 of 47 802.11n(HT20)_HCH_2462MHz_Ant1 (SISO)_NTNV 802.11n(HT40)_LCH_2422MHz_Ant1 (SISO)_NTNV Page 28 of 47 802.11n(HT40)_MCH_2437MHz_Ant1 (SISO)_NTNV 802.11n(HT40)_HCH_2452MHz_Ant1 (SISO)_NTNV Page 29 of 47 Page 30 of 47 5. Unwanted Emissions In Non-restricted Frequency Bands 5.1 Ref 5.1.1 Test Result ModeTX Type Frequency (MHz) RURU PosAntLevel of Reference (dBm)Limit (dBm)Verdict 802.11bSISO 2412//17.80// 2437//17.49// 2462//17.07// 802.11gSISO 2412//1-2.63// 2437//1-3.04// 2462//1-3.45// 802.11n (HT20) SISO 2412//10.83// 2437//10.19// 2462//1-0.23// 802.11n (HT40) SISO 2422//1-6.34// 2437//1-6.82// 2452//1-7.22// Note1: Refer to FCC Part 15.247 (d) and ANSI C63.10-2020, the channel contains the maximum PSD level was used to establish the reference level. 5.1.2 Test Graph 802.11b_LCH_2412MHz_Ant1 (SISO)_NTNV 802.11b_MCH_2437MHz_Ant1 (SISO)_NTNV Page 31 of 47 802.11b_HCH_2462MHz_Ant1 (SISO)_NTNV 802.11g_LCH_2412MHz_Ant1 (SISO)_NTNV Page 32 of 47 802.11g_MCH_2437MHz_Ant1 (SISO)_NTNV 802.11g_HCH_2462MHz_Ant1 (SISO)_NTNV Page 33 of 47 802.11n(HT20)_LCH_2412MHz_Ant1 (SISO)_NTNV 802.11n(HT20)_MCH_2437MHz_Ant1 (SISO)_NTNV Page 34 of 47 802.11n(HT20)_HCH_2462MHz_Ant1 (SISO)_NTNV 802.11n(HT40)_LCH_2422MHz_Ant1 (SISO)_NTNV …

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ReportNo.:18220WC10100501FCCID:2AMV5-SK521-W-APage1of39 Code:AB-RF-05-a FCCTESTREPORT ClientName:ChangxingPotekElectronics&TechnologyCo.,Ltd. Address: No.1218,TaihuAvenue,TaihuSubdistrict,Changxing County,Huzhou,Zhejiang313199 ProductName:2-outletsimultaneouslycontrolledindoorwifismartplug Date:Jun.29,2021 ShenzhenAnbotekComplianceLaboratoryLimited ReportNo.:18220WC10100501FCCID:2AMV5-SK521-W-APage2of39 Code:AB-RF-05-a Contents 1.GeneralInformation ............................................................................................................................................... 5 1.1.ClientInformation ....................................................................................................................................... 5 1.2.DescriptionofDevice(EUT) ..................................................................................................................... 5 1.3.AuxiliaryEquipmentUsedDuringTest ................................................................................................... 6 1.4.DescriptionofTestModes ........................................................................................................................ 6 1.5.Listofchannels ........................................................................................................................................... 7 1.6.DescriptionOfTestSetup ......................................................................................................................... 8 1.7.TestEquipmentList .................................................................................................................................... 9 1.8.MeasurementUncertainty ....................................................................................................................... 10 1.9.DescriptionofTestFacility ...................................................................................................................... 10 2.SummaryofTestResults ................................................................................................................................... 11 3.ConductedEmissionTest ................................................................................................................................... 12 3.1.TestStandardandLimit .......................................................................................................................... 12 3.2.TestSetup .................................................................................................................................................. 12 3.3.TestProcedure .......................................................................................................................................... 12 4.RadiationSpuriousEmissionandBandEdge ................................................................................................ 15 4.1.TestStandardandLimit .......................................................................................................................... 15 4.2.TestSetup .................................................................................................................................................. 15 4.3.TestProcedure .......................................................................................................................................... 16 4.4.TestData .................................................................................................................................................... 17 5.MaximumOutputPowerTest ............................................................................................................................ 27 5.1.TestStandardandLimit .......................................................................................................................... 27 5.2.TestSetup .................................................................................................................................................. 27 5.3.TestProcedure .......................................................................................................................................... 27 5.4.TestData .................................................................................................................................................... 27 6.6DBOccupyBandwidthTest ............................................................................................................................. 28 6.1.TestStandardandLimit .......................................................................................................................... 28 6.2.TestSetup .................................................................................................................................................. 28 6.3.TestProcedure .......................................................................................................................................... 28 6.4.TestData .................................................................................................................................................... 28 7.PowerSpectralDensityTest .............................................................................................................................. 29 7.1.TestStandardandLimit .......................................................................................................................... 29 7.2.TestSetup .................................................................................................................................................. 29 7.3.TestProcedure .......................................................................................................................................... 29 7.4.TestData .................................................................................................................................................... 29 8.100kHzBandwidthofFrequencyBandEdgeRequirement .............................…

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FCCID:2AMV5-SK521-W-A PhotoofPowerLineConductedEmissionTest PhotoofRadiationEmissionTest