2AMV5-SK521-WU2-Outlet WiFi smart plug with 2 USB charging ports

On/off button socket USER MANUAL One button SK521-WU Input:125V~60Hz Output：125V~15A The 2-outlet wifi smart socket (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. SK521 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 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 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 FCC STATEMENT : This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

FCCID:2AMV5-SK521-WU

LabelLocationOnEUT Label ProductName:2-OutletWiFismartplugwith2USBchargingports ModelNo.:SK521-WU FCCID:2AMV5-SK521-WU ThisdevicecomplieswithPart15oftheFCCRules.Operation issubjecttothefollowingtwoconditions: (1)Thisdevicemaynotcauseharmfulinterference,and (2)Thisdevicemustacceptanyinterferencereceived,including interferencethatmaycauseundesiredoperation.

FCCID:2AMV5-SK521-WU ANT

version01 ChangxingPotekElectronics&TechnologyCo.,Ltd. DeclarationconcerningAntennaSpecification Itisherebydeclaredthattheproduct ModelNo.:SK521-WU FCCID.:2AMV5-SK521-WU fulfillstherequirementinFCCtestrelatingtotheantennatype. ThedevicespecifiedaboveconfirmstotheFCCrecommendationsforinternalantennatype(s) describedbelow: 2.4GWiFi: ModelNo.ofantenna:N/A Typeofantenna:PCBAntenna Gainoftheantenna:0.5dBi Frequencyrange:2412-2462MHz 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:2020-09-23 Signature:

RFEXPOSUREEVALUATION AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeusedto evaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF)Radiation asspecifiedin§1.1307(b) FCCID:2AMV5-SK521-WU EUTSpecification EUT2-OutletWiFismartplugwith2USBchargingports Frequencyband(Operating)WLAN:2.412GHz~2.462GHz WLAN:5.18GHz~5.24GHz WLAN:5.745GHz~5.825GHz Others:2.402GHz~2.480GHzBLE DevicecategoryPortable(<20cmseparation) Mobile(>20cmseparation) Others___ ExposureclassificationOccupational/Controlledexposure(S=5mW/cm2) GeneralPopulation/Uncontrolledexposure(S=1mW/cm2) AntennadiversitySingleantenna Multipleantennas Txdiversity Rxdiversity Tx/Rxdiversity Max.outputpower2.4GWiFi:19.05dBm(0.0804W) Antennagain(Max)0.5dBi 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 2.4GHzWiFi: Operating Mode Channel Frequency Measured Power Tuneup tolerance Max.Tune upPower Antenna Gain Powerdensity at20cm Powerdensity Limits(mW/cm 2 ) (MHz)(dBm)(dBm)(dBm)(dBi)(mW/cm 2 ) 802.11b 2412 18.15 18.15±119.150.5 0.0184 1 243718.6518.65±119.650.50.02061 246219.0519.05±120.050.50.02261 802.11g 2412 16.68 16.68±117.680.5 0.0131 1 243717.7717.77±118.770.50.01681 246218.6318.63±119.630.50.02051 802.11n (HT20) 2412 16.03 16.03±117.030.5 0.0113 1 243717.5317.53±118.530.50.01591 246218.2818.28±119.280.50.01891 Note:2.4GWIFIcannotsupportsimultaneoustransmission.

Report No.: 18220WC00126101FCC ID: 2AMV5-SK521-WUPage 1 of 61 Code:AB-RF-05-a FCC TEST REPORT Client Name: Changxing Potek Electronics & Technology Co., Ltd. Address: No. 1218, Taihu Avenue, Taihu Subdistrict, Changxing County, Huzhou City, Zhejiang, P.R.C. Product Name: 2-Outlet WiFi smart plug with 2 USB charging ports Date: Sept. 19, 2020 Shenzhen Anbotek Compliance Laboratory Limited Report No.: 18220WC00126101FCC ID: 2AMV5-SK521-WUPage 2 of 61 Code:AB-RF-05-a Contents 1. General Information ............................................................................................................................................... 5 1.1. Client Information ....................................................................................................................................... 5 1.2. Description of Device (EUT) ..................................................................................................................... 5 1.3. Auxiliary Equipment Used During Test ................................................................................................... 5 1.4. Description of Test Modes ........................................................................................................................ 6 1.5. List of channels ........................................................................................................................................... 7 1.6. Description Of Test Setup ......................................................................................................................... 8 1.7. Test Equipment List .................................................................................................................................... 9 1.8. Measurement Uncertainty ....................................................................................................................... 10 1.9. Description of Test Facility ...................................................................................................................... 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. Radiation Spurious Emission and Band Edge ................................................................................................ 15 4.1. Test Standard and Limit .......................................................................................................................... 15 4.2. Test Setup .................................................................................................................................................. 15 4.3. Test Procedure .......................................................................................................................................... 16 4.4. Test Data .................................................................................................................................................... 17 5. Maximum Output Power Test ............................................................................................................................ 26 5.1. Test Standard and Limit .......................................................................................................................... 26 5.2. Test Setup .................................................................................................................................................. 26 5.3. Test Procedure .......................................................................................................................................... 26 5.4. Test Data .................................................................................................................................................... 26 6. 6DB Occupy Bandwidth Test ............................................................................................................................. 30 6.1. Test Standard and Limit .......................................................................................................................... 30 6.2. Test Setup .................................................................................................................................................. 30 6.3. Test Procedure .......................................................................................................................................... 30 6.4. Test Data .................................................................................................................................................... 30 7. Power Spectral Density Test .............................................................................................................................. 37 7.1. Test Standard and Limit .......................................................................................................................... 37 7.2. Test Setup .................................................................................................................................................. 37 7.3. Test Procedure ...................................................................…

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FCCID:2AMV5-SK521-WU PhotoofConductedEmissionMeasurement PhotoofRadiationEmissionTest