
Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.
FCC Warning 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. Any 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.
SHENZHEN KERUI SMART TECHNOLOGY CO., LTD Add: Room 1501, T2, Jinlitong Building, No. 1100, Xingye Road, Xin'an Street, Bao'an District, Shenzhen, Guangdong, China Date: 2022-10-12 FCC ID: 2AZI3-F58 Dear Sir/Madam, We, SHENZHEN KERUI SMART TECHNOLOGY CO., LTD Hereby declares the following statement for Federal Communications Commission, All these models are identical in the same PCB, layout and electrical circuit, the only difference is color.: Product name: wireless doorbell Model no.: F58, MY7+F58, MY7X2+F58 Sincerely, Name/Title: Li Gui/Marketing Manager Company: SHENZHEN KERUI SMART TECHNOLOGY CO., LTD Address: Room 1501, T2, Jinlitong Building, No. 1100, Xingye Road, Xin'an Street, Bao'an District, Shenzhen, Guangdong, China Phone: 18688736545 Fax: 0755-29960979 E-Mail: [email protected]
CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2022-10-12> Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name 2AZI3-F58 F58, MY7+F58, MY7X2+F58 For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title: Li Gui/Marketing Manager Company: SHENZHEN KERUI SMART TECHNOLOGY CO., LTD Address: Room 1501, T2, Jinlitong Building, No. 1100, Xingye Road, Xin'an Street, Bao'an District, Shenzhen, Guangdong, China Phone: 18688736545 Fax: 0755-29960979 E-Mail: [email protected]
SHENZHEN KERUI SMART TECHNOLOGY CO., LTD Room 1501, T2, Jinlitong Building, No. 1100, Xingye Road, Xin'an Street, Bao'an District, Shenzhen, Guangdong, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2022-10-12 To whom it may concern: We, the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2AZI3-F58 including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. By signing this application form, we agree to Eurofins’ current valid General Terms and Conditions (AGB),Testing and Certification Regulations (PZO) which can be viewed on following website www.eurofins.de/ee or retrieved on request. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title: Li Gui/Marketing Manager Company: SHENZHEN KERUI SMART TECHNOLOGY CO., LTD Address: Room 1501, T2, Jinlitong Building, No. 1100, Xingye Road, Xin'an Street, Bao'an District, Shenzhen, Guangdong, China Phone: 18688736545 Fax: 0755-29960979 E-Mail: [email protected]
FCC ID: 2AZI3-F58 TB-RF-074-1.0 Appendix III EUT External Photographs Photo 1 Appearance of EUT Photo 2 Appearance of EUT FCC ID: 2AZI3-F58 TB-RF-074-1.0 Photo 3 Appearance of EUT Photo 4 Appearance of EUT
FCC ID: 2AZI3-RC531 TB-RF-074-1.0 Appendix IFCC ID Label FCC ID: 2AZI3-F58 Model No.: F58 FCC ID: 2AZI3-F58 TB-RF-074-1.0 Appendix II ID Label Location ID LOCATION
FCC ID: 2AZI3-F58 TB-RF-074-1.0 Appendix IV EUT Internal Photographs Photo 5 Internal of EUT Photo 6 Internal of PCB Antenna FCC ID: 2AZI3-F58 TB-RF-074-1.0 Photo 7 Internal of PCB
ReportNo.:RFI-LAB-RF-202211-KK12-3 QP030-E41 Page1of10 TestingReport CustomerName:SHENZHENKERUISMARTTECHNOLOGYCO., LTD ProductName:antenna SampleModel:T0813O180P ReferenceStandard:GB/T9410-2008;ANSI/IEEEStd149-1979 IssueDate:2022.11.23 Engineer:Date: Auditor:Date: Approver:Date: ReportNo.:RFI-LAB-RF-202211-KK12-3 QP030-E41 Page2of10 Version VersionNo.DateDescriptionFormulateApproval A02022.11.23Forthefirsttime,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)..............................................................................................................10 ReportNo.:RFI-LAB-RF-202211-KK12-3 QP030-E41 Page3of10 1.GeneralInformation 1.1Generalinformationoftestinginstitutions Name ShenzhenRFI-LABCommunicationTechnologyCo.,Ltd. Address 10/FA,LingyunBld,LiufangRoad,BaoanDistrict,Shenzhen Tel 13682621346 E-mail [email protected] Equipment AlltheequipmentusedinthereportisfixedinZoneB,WestSideof1/F,Building1, TingweiIndustrialPark,No.6LiufangRoad,Bao'anDistrict,Shenzhen 1.2Testingprinciple ReportNo.:RFI-LAB-RF-202211-KK12-3 QP030-E41 Page4of10 1.3Testequipment EquipmentModelNo.SerialNo.Manufacturer Calibration date Next calibration date OTATest System RayZone-5000 RFI-LAB-RF -D00 GTS2021.3.152023.3.14 Network Analyzer E5071C RFI-LAB-RF -D01 KEYSIGHT2022.5.132023.5.12 1.4Testenvironment Temperature 23.8°C Humidity 59%RH Pressure 100.13kPa 1.5Statement (1)Thetestresultsinthereportareonlyapplicabletothetestedsamplesandthetestedsamples workundertheenvironmentdescribedinthereport. (2)OnlyShenzhenRFI-LABCommunicationTechnologyCo.,Ltd.havetherighttomodifythe report,andthemodificationinformationshallbeannotatedintherevisionform. (3)Anyobjectiontothisreportshallberaisedwithin30daysafterformalconfirmationofthe report. (4)Thisreportisinvalidifthereisanyevidencethatthesampleinformationprovidedisfalsified. (5)Thereportisinvalidwithoutthesignatureoftheauditorandapprover. ReportNo.:RFI-LAB-RF-202211-KK12-3 QP030-E41 Page5of10 2.SampleInformation 2.1Clientinformation Name SHENZHENKERUISMARTTECHNOLOGYCO.,LTD Address Room1501,T2,JinlitongBuilding,No.1100,XingyeRoad,Xin'an Street,Bao'anDistrict,Shenzhen,Guangdong,China Contacts / Tel / E-mail / 2.2DescriptionofEUT(S) ProductName antenna SampleModel T0813O180P Size / SerialNo. / TestItem Antennagain;Efficiency;Radiationpattern FrequencyRange 428-438MHz ReceivedDate 2022.11.4 TestDate 2022.11.7 Remark ThelengthoftheRFcableis90mm ReportNo.:RFI-LAB-RF-202211-KK12-3 QP030-E41 Page6of10 2.3EUTappearance 2.4DUTsetupphotooffreespaceOTAtesting Planform Frontview ReportNo.:RFI-LAB-RF-202211-KK12-3 QP030-E41 Page7of10 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 ReportNo.:RFI-LAB-RF-202211-KK12-3 QP030-E41 Page8of10 3.3 Testdata 3.3.1Typicalfreespaceefficiencyandgain 3.3.2Typicalfreespaceradiationpattern (1)X-ZPlane: Frequency/MHz 428429430431432433434435436437438 PeakGain/dBi -11.82-11.93-12.10-12.28-12.46-12.71-12.86-13.14-13.35-13.55-13.82 Efficiency/% 2.432.372.302.212.112.031.931.831.751.671.60 ReportNo.:RFI-LAB-RF-202211-KK12-3 QP030-E41 Page9of10 (2)Y-ZPlane: (3)X-YPlane: ReportNo.:RFI-LAB-RF-202211-KK12-3 QP030-E41 Page10of10 (4)TypicalFreeSpace3DRadiationPatternat433MHz: -------------------------------------------------End-----------------------------------------…
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Shenzhen Toby Technology Co., Ltd. Report No.: TBR-C-202209-0263-1 Page: 1 of 29 TB-RF-074-1.0 1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China Tel: +86 75526509301 Fax: +86 75526509195 FCC Radio Test Report FCC ID: 2AZI3-F58 Report No. : TBR-C-202209-0263-1 Applicant : SHENZHEN KERUI SMART TECHNOLOGY CO., LTD Equipment Under Test (EUT) EUT Name : wireless doorbell Model No. : F58 Series Model No. : MY7+F58, MY7X2+F58 Brand Name : STECHRO, SECRUI Sample ID : 202209-0263-1-1#& 202209-0263-1-2# Receipt Date : 2022-09-29 Test Date : 2022-09-29 to 2022-10-10 Issue Date : 2023-01-04 Standards : FCC Part 15, Subpart C (15.231(a)) Test Method : ANSI C63.10:2013 Conclusions : PASS In the configuration tested, the EUT complied with the standards specified above, The EUT technically complies with the FCC requirements Test/Witness Engineer : Seven Wu Engineer Supervisor : Ivan Su Engineer Manager : Ray Lai This report details the results of the testing carried out on one sample. The results contained in this test report do not relate to other samples of the same product. The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in the report. Report No.: TBR-C-202209-0263-1 Page: 2 of 29 TB-RF-074-1.0 Contents CONTENTS ............................................................................................................................................. 2 1. GENERAL INFORMATION ABOUT EUT ............................................................................. 5 1.1 Client Information ................................................................................................................. 5 1.2 General Description of EUT (Equipment Under Test) ................................................... 5 1.3 Block Diagram Showing the Configuration of System Tested ...................................... 6 1.4 Description of Support Units .............................................................................................. 6 1.5 Description of Test Mode .................................................................................................... 6 1.6 Description of Test Software Setting .............................................................................. 7 1.7 Measurement Uncertainty ................................................................................................ 7 1.8 Test Facility ........................................................................................................................ 8 2. TEST SUMMARY ....................................................................................................................... 9 3. TEST SOFTWARE ..................................................................................................................... 9 4. TEST EQUIPMENT .................................................................................................................. 10 5. CONDUCTED EMISSION TEST ........................................................................................... 11 5.1 Test Standard and Limit .................................................................................................... 11 5.2 Test Setup ........................................................................................................................... 11 5.3 Test Procedure ................................................................................................................... 12 5.4 Deviation From Test Standard ......................................................................................... 12 5.5 Test Data ............................................................................................................................. 12 6. RADIATED EMISSION TEST ................................................................................................ 13 6.1 Test Standard and Limit .................................................................................................... 13 6.2 Test Setup ........................................................................................................................... 14 6.3 Test Procedure ................................................................................................................... 16 6.4 Deviation From Test Standard ......................................................................................... 16 6.5 EUT Operating Condition ................................................................................................. 16 6.6 Test Data ............................................................................................................................. 16 7. BANDWIDTH ............................................................................................................................ 17 7.1 Test Standard and Limit .................................................................................................... 17 7.2 Test Setup ........................................................................................................................... 17 7.3 Test Procedure ................................................................................................................... 17 7.4 Deviation From Test Standard ......................................................................................... 17 7.5 EUT Operating Condition ................................................................................................. 17 7.6 Test Data ............................................................................................................................. 17 8. RELEASE TIME MEASUREMENT ....................................................................................... 18 8.1 Test Standard and Limit .................................................................................................... 18 8.2 Test Setup ........................…
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FCC ID: 2AZI3-F58 TB-RF-074-1.0 Appendix V EUT Test Photographs 15C Test Setup Photo of Setup for Radiated Emission (Above 1 GHz) Photo of Setup for Radiated Emission (Below 1 GHz) -----END OF REPORT-----
| # | Rule Parts | Frequency Range | Power Output |
|---|---|---|---|
| 1 | 15.231 | 433.92 MHz - 433.92 MHz | - |

Indoor Bluetooth Thermometer and Hygrometer
Equipment Class
DTS - Digital Transmission System
Water Leak Detector
Equipment Class
DSC - Part 15 Security/Remote Control Transmitter
Water Leak Detector
Equipment Class
DSC - Part 15 Security/Remote Control Transmitter
Alarm System
Equipment Class
DSC - Part 15 Security/Remote Control Transmitter
Wireless Doorbell Transmitter
Equipment Class
DSC - Part 15 Security/Remote Control Transmitter