2ATEV-SR4MRadar Motion Sensor

HangzhouBroadLinkTechnologyCo.,Ltd. BuildingC,57Jiang'erRoad,Binjiang,Hangzhou310052,China Date:2022-11-24 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 FCCID:2ATEV-SR4M ConfidentialityRequest Towhomitmayconcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,weare requestingtheCommissiontowithholdthefollowingattachment(s)asconfidentialdocumentsfrompublic disclosureindefinitely. ☒ BlockDiagram ☐ Tune-UpInformation ☒ OperationalDescription ☐ SecurityInformation ☒ Schematics ☐ SoftwareDefinedRadio(SDR)Information ☐ PartsList Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarilyreleasedtothe public.Thepublicdisclosureofthesematerialsmaybeharmfultotheapplicantandprovideunjustified benefitstoitscompetitors. Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulationsinTitle47 CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthatbusinesssensitive informationremainsconfidentialuntiltheactualmarketingofnewlyauthorizeddevices,werequestShort TermConfidentialityofthefollowingattachment(s); ☐ ExternalPhotos ☐ TestSetupPhotos ☐ InternalPhotos ☐ UserManual ☐For45days,pursuanttoPublicNoticeDA04-1705. or ☐For180dayspursuanttoKDB726920D01. TheapplicantunderstandsthatpursuanttoSection0.457oftheRules,disclosureofthisapplicationand allaccompanyingdocumentationwillnotbemadebeforethedateoftheGrantforthisapplication. Sincerely, HangzhouBroadLinkTechnologyCo.,Ltd. ------------------------------ MengjiaoYan/PM

HangzhouBroadLinkTechnologyCo.,Ltd. BuildingC,57Jiang'erRoad,Binjiang,Hangzhou310052,China --------------------------------------------------------------------------------------------------------------------------------------- ProductName:MotionSensor FCCID:2ATEV-SR4M ModelNo.:SR4M,SR4,SR4MS,SR4R,MS4,MS4BT ModelDeclarationLetter DearRegulatoryAuthority, Model(s):SR4,SR4MS,SR4R,MS4,MS4BTaresametothemodelSR4M,thesemodelsare samePCBLayout,Schematics,BOM.Onlyfordifferentmodelnameandappearancesfor differentmarketrequire. Sincerelyyours, SignatureMengjiaoYan/PM Date:2022-11-24

HangzhouBroadLinkTechnologyCo.,Ltd. BuildingC,57Jiang'erRoad,Binjiang,Hangzhou310052,China -------------------------------------------------------------------------------- (FCCID：2ATEV-SR4M) POWEROFATTORNEY DATE:2022-11-24 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 ToWhomItMayConcern: We,theundersigned,herebyauthorizeWaltekTestingGroup(Shenzhen)Co.,Ltd. JandySoonourbehalf,toapplytotheFederalCommunicationsCommissiononour equipment.AnyandallactscarriedoutbyWaltekTestingGroup(Shenzhen)Co., Ltd.JandySoonourbehalfshallhavethesameeffectasactsofourown. ThisistoadvisethatweareinfullcompliancewiththeAnti-DrugAbuseAct. We,HangzhouBroadLinkTechnologyCo.,Ltd.arenotsubjecttoadenialof federalbenefitspursuanttoSection5301oftheAnti-DrugActof1988,21 USC853a,andnopartytotheapplicationissubjecttoadenialoffederal benefitspursuanttothatsection. Sincerely, HangzhouBroadLinkTechnologyCo.,Ltd. ------------------------------- (MengjiaoYan) (PM)

Reference No.: WTX22X07140325W Page 2 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 2 - EUT EXTERNAL PHOTOGRAPHS EUT View 1 EUT View 2 Reference No.: WTX22X07140325W Page 3 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 3 EUT View 4 Reference No.: WTX22X07140325W Page 4 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 5 EUT View 6

Reference No.: WTX22X07140325W Page 1 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn ANNEX EXHIBIT 1 - PRODUCT LABELING Proposed FCC ID Label Format Specifications: The label shall be securely affixed to a permanently attached part of the device, in a location where it is visible or easily accessible to the user, and shall not be readily detachable. The label shall be sufficiently durable to remain fully legible and intact on the device in all normal conditions of use throughout the device’s expected lifetime. Proposed Label Location on EUT FCC ID Label Location

Reference No.: WTX22X07140325W Page 5 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 3 - EUT INTERNAL PHOTOGRAPHS EUT Housing and Board View 1 EUT Housing and Board View 2 Reference No.: WTX22X07140325W Page 6 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 1 Solder Board-Component View 2 Reference No.: WTX22X07140325W Page 7 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 3 Solder Board-Component View 4 Reference No.: WTX22X07140325W Page 8 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Antenna View

1. RF Exposure Requirements 1.1 General Information Client Information Applicant: Hangzhou BroadLink Technology Co., Ltd. Address of applicant: Building C, 57 Jiang’er Road, Binjiang, Hangzhou, 310052, P.R.China Manufacturer: Hangzhou BroadLink Technology Co., Ltd. Address of manufacturer: Building C, 57 Jiang’er Road, Binjiang, Hangzhou, 310052, P.R.China General Description of EUT: Product Name: Radar Motion Sensor Trade Name / Model No.: SR4M Adding Model(s): SR4, SR4MS, SR4R, MS4, MS4BT Rated Voltage: Battery:DC1.5V”AAA”*2 Power Adapter: / Software Version: 4.1.0.2056.17 Hardware Version: SR4_M_1V1 FCC ID: 2ATEV-SR4M Equipment Type: Mobile device Technical Characteristics of EUT: Bluetooth Bluetooth Version: V4.2 (BLE mode) Frequency Range: 2402-2480MHz RF Output Power: 3.69dBm (Conducted) Data Rate: 1Mbps Modulation: GFSK Quantity of Channels: 40 Channel Separation: 2MHz Type of Antenna: PCB Antenna Antenna Gain: -5.14dBi Radar Frequency Range: 5725-5875MHz Max. Field Strength: 91.54dBuV/m Antenna Type: PCB Antenna Antenna Gain: 0dBi 1.2 RF Exposure Exemption According to §1.1307(b)(3) and 447498 D04 Interim General RF Exposure Guidance v01, system operating under the provisions of this section shall be operating in a manner that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure. Option A: FCC Rule Part 1.1307 (b)(3)(i)(A):The available maximum time-averaged power is no more than 1mW, regardless of separation distance. Option B: FCC Rule Part 1.1307 (b)(3)(i)(B): The available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold P th (mW) described in the following formula. P th is given by: Option C: FCC Rule Part 1.1307 (b)(3)(i)(C): The minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. R must be at least λ/2π, where λ is the free-space operating wavelength in meters. Single RF Sources Subject to Routine Environmental Evaluation RF Source frequency (MHz) Threshold ERP (watts) 0.3-1.34 1,920 R 2 1.34-30 3,450 R 2 /f 2 30-300 3.83 R 2 300-1,500 0.0128 R 2 f 1,500-100,000 19.2R 2 For Multiple RF sources: FCC Rule Part 1.1307(b)(3)(ii): (A) The available maximum time-averaged power of each source is no more than 1 mW and there is a separation distance of two centimeters between any portion of a radiating structure operating and the nearest portion of any other radiating structure in the same device, except if the sum of multiple sources is less than 1 mW during the time-averaging period, in which case they may be treated as a single source (separation is not required). (B) In the case of fixed RF sources operating in the same time-averaging period, or of multiple mobile or portable RF sources within a device operating in the same time averaging period, if the sum of the fractional contributions to the applicable thresholds is less than or equal to 1 as indicated in the following equation. 1.3 Calculated Result Radio Access Technology Min. Frequency Max. Output Power Max. Tune-Up Output Power Antenna Gain Duty Cycle Tune-Up EIRP (MHz) (dBm) (dBm) (dBi) (%) (dBm) Bluetooth 2402 3.69 4.0 -5.14 100 -1.1 Radar 5725 -3.71 -3.0 0 -- -3.0 Frequency Option Min. Distance Tune-Up ERP Exposure Limit Ratio Result (MHz) (cm) (dBm) (mW) (mW) Pass/Fail 2402 C 20.00 -3.29 0.47 768.00 0.01 Pass 5725 C 20.00 -5.15 0.31 768.00 0.01 Pass Note: 1. Output Power = E - 104.8 + 20logD - Antenna gain; EIRP = Output Power + Antenna gain; ERP=EIRP-2.15dB. 2. Option A, B and C refers as clause 1.2. 3. For option B, Pth(mW) convert to Exposure Limit(mW); For option C, ERP(W) convert to Exposure Limit(mW). 4. Ratio= Tune-Up ERP(mW)/ Exposure Limit (mW) Mode for Simultaneous Multi-band Transmission: Radio Access Technology Ratio 1 Ratio 2 Simultaneous Ratio Limit Result Pass/Fail Bluetooth+ Radar 0.01 0.01 0.02 1 Pass Result: Pass

ReportNo.:RFI-LAB-RF-202209-II38 QP030-E11 Page1of9 TestingReport CustomerName:HangzhouBroadLinkTechnologyCo.,Ltd. ProductName:BluetoothAntenna SampleModel:SR4M ReferenceStandard:GB/T9410-2008;ANSI/IEEEStd149-1979 IssueDate:2022.10.20 Engineer:Date: Auditor:Date: Approver:Date: ReportNo.:RFI-LAB-RF-202209-II38 QP030-E11 Page2of9 Version VersionNo.DateDescriptionFormulateApproval A02022.10.20Forthefirsttime,formulateJacksonEason 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 2.4DUTsetupphotooffreespaceOTAtesting........................................................................6 3.TestResults......................................................................................................................................7 3.1Teststandard.........................................................................................................................7 3.2Testuncertainty.....................................................................................................................7 3.3Testdata................................................................................................................................8 3.3.1Typicalfreespaceefficiencyandgain......................................................................8 3.3.2Typicalfreespaceradiationpattern...........................................................................8 （Thefollowingisblank）................................................................................................................9 ReportNo.:RFI-LAB-RF-202209-II38 QP030-E11 Page3of9 1.GeneralInformation 1.1Generalinformationoftestinginstitutions Name ShenzhenRFI-LABCommunicationTechnologyCo.,Ltd. Address 10/FA,LingyunBld,LiufangRd,BaoanDistrict,SZ Tel 13631623357 E-mail [email protected] Equipment Alltheequipmentusedinthereportisfixedin 10/FA,LingyunBld,LiufangRd,BaoanDistrict,SZ 1.2Testingprinciple ReportNo.:RFI-LAB-RF-202209-II38 QP030-E11 Page4of9 1.3Testequipment EquipmentModelNo.SerialNo.Manufacturer Calibration date Next calibration date 16probe microwave chamber 3*3*2.5 RFI-LAB-RF -A00 SUNYIELD2021.3.152023.3.14 Network Analyzer E5071C RFI-LAB-RF -A02 Agilent 2022.5.132023.5.12 1.4Testenvironment Temperature 24.1°C Humidity 59%RH Pressure 100.09kPa 1.5Statement (1)Thetestresultsinthereportareonlyapplicabletothetestedsamplesandthetestedsamples workundertheenvironmentdescribedinthereport. (2)OnlyShenzhenRFI-LABCommunicationTechnologyCo.,Ltd.havetherighttomodifythe report,andthemodificationinformationshallbeannotatedintherevisionform. (3)Anyobjectiontothisreportshallberaisedwithin30daysafterformalconfirmationofthe report. (4)Thisreportisinvalidifthereisanyevidencethatthesampleinformationprovidedisfalsified. (5)Thereportisinvalidwithoutthesignatureoftheauditorandapprover. ReportNo.:RFI-LAB-RF-202209-II38 QP030-E11 Page5of9 2.SampleInformation 2.1Clientinformation Name HangzhouBroadLinkTechnologyCo.,Ltd. Address UnitC,Building1,No.57Jiang’erRoad,ChangheStreet,Binjiang District,Hangzhou,Zhejiang,P.R.China Contacts / Tel / E-mail / 2.2DescriptionofEUT(S) ProductName Bluetoothantenna SampleModel SR4M AntennaSize / AntennaType / SerialNo. / TestItem Antennagain;Efficiency;Radiationpattern FrequencyRange 2400-2500MHz ReceivedDate 2022.9.29 TestDate 2022.9.29 Remark ThelengthoftheRFcableis85mm ReportNo.:RFI-LAB-RF-202209-II38 QP030-E11 Page6of9 2.3EUTappearance 2.4DUTsetupphotooffreespaceOTAtesting Planform Frontview ReportNo.:RFI-LAB-RF-202209-II38 QP030-E11 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±1dB Radiationefficiency±10% ReportNo.:RFI-LAB-RF-202209-II38 QP030-E11 Page8of9 3.3Testdata 3.3.1Typicalfreespaceefficiencyandgain 3.3.2Typicalfreespaceradiationpattern (1)X-ZPlane: (2)Y-ZPlane: Frequency/MHz 24002410242024302440245024602470248024902500 PeakGain/dBi -5.12-5.14-5.46-5.39-5.65-5.72-5.8-5.71-5.78-5.75-5.9 Efficiency/% 7.287.327.157.207.016.956.887.137.067.026.97 ReportNo.:RFI-LAB-RF-202209-II38 QP030-E11 Page9of9 (3)X-YPlane: (4)TypicalFreeSpace3DRadiationPatternat2.45GHz: -------------------------------------------------End------------------------------------------------ （Thefollowingisblank）

Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 1 of 36 TEST REPORT Reference No. .................... : WTX22X07140325W001 FCC ID ................................ : 2ATEV-SR4M Applicant ........................... : Hangzhou BroadLink Technology Co., Ltd. Address ............................. : Building C, 57 Jiang’er Road, Binjiang, Hangzhou, 310052, P.R.China Manufacturer ..................... : The same as Applicant Address ............................. : The same as Applicant Product Name ................... : Radar Motion Sensor Model No.. .......................... : SR4M Standards .......................... : FCC Part 15.247 Date of Receipt sample .... : 2022-07-11 Date of Test........................ : 2022-07-11 to 2022-11-12 Date of Issue ..................... : 2022-11-12 Test Report Form No. ....... : WTX_Part 15_247W Test Result ......................... : Pass Remarks: The results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of approver. Prepared By: Waltek Testing Group (Shenzhen) Co., Ltd. Address: 1/F., Room 101, Building 1, Hongwei Industrial Park, Liuxian 2nd Road, Block 70 Bao'an District, Shenzhen, Guangdong, China Tel.: +86-755-33663308 Fax.: +86-755-33663309 Email: [email protected] Tested by: Approved by: Mike Shi Silin Chen Reference No.: WTX22X07140325W001 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 2 of 36 TABLE OF CONTENTS 1. GENERAL INFORMATION ................................................................................................................................... 4 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ......................................................................... 4 1.2 TEST STANDARDS ................................................................................................................................................. 5 1.3 TEST METHODOLOGY ........................................................................................................................................... 5 1.4 TEST FACILITY ...................................................................................................................................................... 5 1.5 EUT SETUP AND TEST MODE .............................................................................................................................. 6 1.6 MEASUREMENT UNCERTAINTY ............................................................................................................................. 7 1.7 TEST EQUIPMENT LIST AND DETAILS ................................................................................................................... 8 2. SUMMARY OF TEST RESULTS ......................................................................................................................... 11 3. ANTENNA REQUIREMENT ................................................................................................................................ 12 3.1 STANDARD APPLICABLE ..................................................................................................................................... 12 3.2 EVALUATION INFORMATION ................................................................................................................................ 12 4. POWER SPECTRAL DENSITY ........................................................................................................................... 13 4.1 STANDARD APPLICABLE ..................................................................................................................................... 13 4.2 TEST SETUP BLOCK DIAGRAM ........................................................................................................................... 13 4.3 TEST PROCEDURE .............................................................................................................................................. 13 4.4 SUMMARY OF TEST RESULTS/PLOTS ................................................................................................................. 13 5. DTS BANDWIDTH ................................................................................................................................................. 14 5.1 STANDARD APPLICABLE ..................................................................................................................................... 14 5.2 TEST SETUP BLOCK DIAGRAM ........................................................................................................................... 14 5.3 TEST PROCEDURE .............................................................................................................................................. 14 5.4 SUMMARY OF TEST RESULTS/PLOTS ................................................................................................................. 14 6. RF OUTPUT POWER ............................................................................................................................................ 15 6.1 STANDARD APPLICABLE ..................................................................................................................................... 15 6.2 TEST SETUP BLOCK DIAGRAM ........................................................................................................................... 15 6.3 TEST PROCEDURE .............................................................................................................................................. 15 6.4 SUMMARY OF TEST RESULTS/PLOTS ................................................................................................................. 15 7. FIELD STRENGTH OF SPURIOUS EMISSIONS .............................................................…

Text truncated - open the document above for the full version.

Reference No.: WTX22X07140325W Page 9 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 4 - TEST SETUP PHOTOGRAPHS Radiation Emission Test Setup (Below 30MHz) Radiation Emission Test Setup (30MHz to 1GHz) Reference No.: WTX22X07140325W Page 10 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Radiation Emission Test Setup (1GHz to 18GHz) Radiation Emission Test Setup (Above 18GHz) Reference No.: WTX22X07140325W Page 11 of 11 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn ***** END OF REPORT *****