2AZI3-RC531Motion Sensor Alarm

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, China Date: 2022-6-16 FCC ID: 2AZI3-RC531 Dear Sir/Madam, We, SHENZHEN KERUI SMART TECHNOLOGY CO., LTD Hereby declares the following statement for Federal Communications Commission, PCB board, circuit, structure and internal of these model(s) are the same, Only model number is different for these model: Product name: Motion Sensor Alarm Model no.: RC531, P7+RC531 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, 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:<2022-6-16> 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-RC531 RC531 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, China Phone: 18688736545 Fax: 0755-29960979 E-Mail: [email protected]

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, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2022-6-16 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-RC531 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, China Phone: 18688736545 Fax: 0755-29960979 E-Mail: [email protected]

FCC ID: 2AZI3-RC531 TB-RF-074-1.0 Appendix III EUT External Photographs Photo 1 Appearance of EUT Photo 2 Appearance of EUT FCC ID: 2AZI3-RC531 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 SHENZHEN KERUI SMART TECHNOLOGY CO., LTD Name: Motion Sensor Alarm Brand: AMHEY STECHRO Model No.: RC531 FCC ID: 2AZI3-RC531 Input: 3V Made In China FCC ID: 2AZI3-RC531 TB-RF-074-1.0 Appendix II ID Label Location ID LOCATION

FCC ID: 2AZI3-RC531 TB-RF-074-1.0 Appendix IV EUT Internal Photographs Photo 5 Internal of EUT Photo 6 Internal of PCB Antenna FCC ID: 2AZI3-RC531 TB-RF-074-1.0 Photo 7 Internal of PCB

Shenzhen Toby Technology Co., Ltd. Report No.: TBR-C-202205-0396-7 Page: 1 of 28 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-RC531 Report No. : TBR-C-202205-0396-7 Applicant : SHENZHEN KERUI SMART TECHNOLOGY CO., LTD Equipment Under Test (EUT) EUT Name : Motion Sensor Alarm Model No. : RC531 Series Model No. : P7+RC531 Brand Name : AMHEY STECHRO Sample ID : 202205-0396-4-1#& 202205-0396-4-2# Receipt Date : 2022-05-23 Test Date : 2022-05-23 to 2022-06-13 Issue Date : 2022-06-13 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-202205-0396-7 Page: 2 of 28 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 ....................................................................................................................... 8 3. TEST SOFTWARE ..................................................................................................................... 8 4. TEST EQUIPMENT .................................................................................................................... 9 5. CONDUCTED EMISSION TEST ........................................................................................... 10 5.1 Test Standard and Limit .................................................................................................... 10 5.2 Test Setup ........................................................................................................................... 10 5.3 Test Procedure ................................................................................................................... 11 5.4 Deviation From Test Standard ......................................................................................... 11 5.5 Test Data ............................................................................................................................. 11 6. RADIATED EMISSION TEST ................................................................................................ 12 6.1 Test Standard and Limit .................................................................................................... 12 6.2 Test Setup ........................................................................................................................... 13 6.3 Test Procedure ................................................................................................................... 15 6.4 Deviation From Test Standard ......................................................................................... 15 6.5 EUT Operating Condition ................................................................................................. 15 6.6 Test Data ............................................................................................................................. 15 7. BANDWIDTH ............................................................................................................................ 16 7.1 Test Standard and Limit .................................................................................................... 16 7.2 Test Setup ........................................................................................................................... 16 7.3 Test Procedure ................................................................................................................... 16 7.4 Deviation From Test Standard ......................................................................................... 16 7.5 EUT Operating Condition ................................................................................................. 16 7.6 Test Data ............................................................................................................................. 16 8. RELEASE TIME MEASUREMENT ....................................................................................... 17 8.1 Test Standard and Limit .................................................................................................... 17 8.2 Test Setup .............................…

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FCC ID: 2AZI3-RC531 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-----