2A763-DR41HYGRO-THERMO SENSOR

FCC Statement Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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 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. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.

FUZHOU ZHONGXIAN ELECTRONIC CO.,LTD Agent Authorization Company: FUZHOU ZHONGXIAN ELECTRONIC CO.,LTD Address: NO.398,BAILONG,BAILONG VILLAGE,ZHUQI TOWNSHIP, MINHOU COUNTY, FUZHOU CITY, FUJIAN PROVINCE Product Name: HYGRO-THERMO SENSOR Model Number(s): DR41, DR11, DR21,DR31,DR51,DW61,DW71,DW81 ,DW91 Product Description: HYGRO-THERMO SENSOR We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2022/08/04 Name: Xiaolin cai Title: QA Company: FUZHOU ZHONGXIAN ELECTRONIC CO.,LTD

FUZHOU ZHONGXIAN ELECTRONIC CO.,LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2022/08/04 Subject; Request for Confidentiality FCC ID: 2A763-DR41 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuantto KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Xiaolin cai Title: QA

FUZHOU ZHONGXIAN ELECTRONIC CO.,LTD Model Difference 2022/08/04 EUT NAME: HYGRO-THERMO SENSOR FCC ID: 2A763-DR41 MODEL : DR41, DR11, DR21,DR31,DR51,DW61,DW71,DW81 ,DW91. All the model are the same circuit and RF module, except model names. Sincerely Client’s signature Client’s name / title : Xiaolin cai / QA Contact information / address: NO.398,BAILONG,BAILONG VILLAGE,ZHUQI TOWNSHIP, MINHOU COUNTY, FUZHOU CITY, FUJIAN PROVINCE

External Photos

Size:20*20mm FCC ID:2A763-DR41 Label location

Internal Photos Antenna

No.：BCTC/RF-EMC-005 Page: 1 of 31 Edition：A.5 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2207897882E Applicant: FUZHOU ZHONGXIAN ELECTRONIC CO.,LTD Product Name: HYGRO-THERMO SENSOR Model/Type Ref.: DR41 Tested Date: 2022-07-27 to 2022-08-12 Issued Date: 2022-08-12 Report No.: BCTC2207897882E No.：BCTC/RF-EMC-005 Page: 2 of 31 Edition：A.5 FCC ID: 2A763-DR41 The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. Product Name: HYGRO-THERMO SENSOR Trademark: N/A Model/Type Ref.: DR41 DR11, DR21, DR31, DR51, DW61, DW71, DW81, DW91 Prepared For: FUZHOU ZHONGXIAN ELECTRONIC CO.,LTD Address: NO.398,BAILONG,BAILONG VILLAGE,ZHUQI TOWNSHIP, MINHOU COUNTY, FUZHOU CITY, FUJIAN PROVINCE Manufacturer: FUZHOU ZHONGXIAN ELECTRONIC CO.,LTD Address: NO.398,BAILONG,BAILONG VILLAGE,ZHUQI TOWNSHIP, MINHOU COUNTY, FUZHOU CITY, FUJIAN PROVINCE Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2022-07-27 Sample tested Date: 2022-07-27 to 2022-08-12 Issue Date: 2022-08-12 Report No.: BCTC2207897882E Test Standards: FCC Part15.231e ANSI C63.10-2013 Test Results: PASS Tested by: Approved by: Brave Zeng/ Project Handler Zero Zhou/Reviewer Report No.: BCTC2207897882E No.：BCTC/RF-EMC-005 Page: 3 of 31 Edition：A.5 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 4 2. Test Summary ....................................................................................................... 5 3. Measurement Uncertainty ..................................................................................... 6 4. Product Information And Test Setup ..................................................................... 7 4.1 Product Information ............................................................................................... 7 4.2 Test Setup Configuration ...................................................................................... 7 4.3 Support Equipment ............................................................................................... 7 4.4 Channel List .......................................................................................................... 8 4.5 Test Mode ............................................................................................................. 8 5. Test Facility And Test Instrument Used ................................................................. 9 5.1 Test Facility ........................................................................................................... 9 5.2 Test Instrument Used ............................................................................................ 9 6. Conducted Emissions .......................................................................................... 11 6.1 Block Diagram Of Test Setup .............................................................................. 11 6.2 Limit .................................................................................................................... 11 6.3 Test Procedure ................................................................................................... 11 6.4 EUT Operating Conditions .................................................................................. 12 6.5 Test Result .......................................................................................................... 12 7. Radiated Emissions ............................................................................................. 13 7.1 Block Diagram Of Test Setup .............................................................................. 13 7.2 Limit .................................................................................................................... 14 7.3 Test Procedure ................................................................................................... 16 7.4 EUT Operating Conditions .................................................................................. 17 7.5 Test Result .......................................................................................................... 17 8. Bandwidth Test .................................................................................................... 21 8.1 Block Diagram Of Test Setup .............................................................................. 21 8.2 Limit .................................................................................................................... 21 8.3 Test Procedure ................................................................................................... 21 8.4 EUT Operating Conditions .................................................................................. 21 8.5 Test Result .......................................................................................................... 22 9. Calculation Of Average Factor ............................................................................ 23 10. Dwell Time........................................................................................................... 25 10.1 Block Diagram Of Test Setup ............................................................................ 25 10.2 Limit .................................................................................................................. 25 10.3 Test Procedure ................................................................................................. 25 10.4 Test Result ............................................…

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Report No.: BCTC2207897882E No.：BCTC/RF-EMC-005 Page: 27 of 28 Edition：A.5 13. EUT Test Setup Photographs Radiated Measurement Photos 1G