2AVEN-CW286BLEElectronic scale

105mm 130mm BLE The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Shenzhen Unique Scales Co., Ltd Floor 3 & 6, Building A, No. 22, Huanping Road, Gaoqiao Community, Pingdi Street, Longgang District, Shenzhen, Guangdong, China Statement Product: Electronic scale Model: CW286BLE Additional Model: CW222BLE, CW223BLE, CW225BLE, CW226BLE, CW227BLE, CW228BLE, CW229BLE, CW230BLE, CW270BLE, CW272BLE, CW273BLE, CW275BLE, CW276BLE, CW277BLE, CW278BLE, CW279BLE,CW280BLE, CW281BLE, CW282BLE, CW283BLE, CW285BLE, CW287BLE, CW288BLE, CW289BLE, CW290BLE, CW291BLE, CW292BLE, CW293BLE, CW295BLE, CW296BLE, CW297BLE, CW298BLE, CW299BLE, CW300BLE, CW311BLE, CW312BLE, CW313BLE, CW315BLE, CW316BLE, CW317BLE, CW318BLE, CW319BLE Trademark: N/A We hereby state that All models above are identical in interior structure, electrical circuits and components, and just model names are different for the marketing requirement. Your assistance on this matter is highly appreciated. Yours sincerely, Signature: Date: 2019/12/26 Name: Huiying He Company Name : Shenzhen Unique Scales Co., Ltd Address: Floor 3 & 6, Building A, No. 22, Huanping Road, Gaoqiao Community, Pingdi Street, Longgang District, Shenzhen, Guangdong, China Tel / Fax: +86-0755-84865396/+86-0755-84865396 E-Mail: [email protected]

Shenzhen Unique Scales Co., Ltd Floor 3 & 6, Building A, No. 22, Huanping Road, Gaoqiao Community, Pingdi Street, Longgang District, Shenzhen, Guangdong, China Agent Authorization Letter (2020-10-27) E urofins MET Labs 914 West Patapsco Avenue Baltimore, MD 21230 R E: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: W e, the undersigned, hereby authorize (Shenzhen Tongce Testing Lab) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. W e also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). T his agreement expires one year from the current date. S incerely, N ame: Huiying He Date: 2020.10.27 Title: System engineer

Shenzhen Unique Scales Co., Ltd Floor 3 & 6, Building A, No. 22, Huanping Road, Gaoqiao Community, Pingdi Street, Longgang District, Shenzhen, Guangdong, China Long Term Confidentiality Request Letter (2020-10-27) E urofins MET Labs 914 West Patapsco Avenue Baltimore, MD 21230 RE : CONFIDENTIALITY REQUEST FOR ( Electronic scale / CW286BLE, CW222BLE, CW223BLE, CW225BLE, CW226BLE, CW227BLE, CW228BLE, CW229BLE, CW230BLE, CW270BLE, CW272BLE, CW273BLE, CW275BLE, CW276BLE, CW277BLE, CW278BLE, CW279BLE, CW280BLE, CW281BLE, CW282BLE, CW283BLE, CW285BLE, CW287BLE, CW288BLE, CW289BLE, CW290BLE, CW291BLE, CW292BLE, CW293BLE, CW295BLE, CW296BLE, CW297BLE, CW298BLE, CW299BLE, CW300BLE, CW311BLE, CW312BLE, CW313BLE, CW315BLE, CW316BLE, CW317BLE, CW318BLE, CW319BLE/ FCC ID: 2AVEN-CW286BLE) To Whom It May Concern: T his letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the Schematic Diagram Block Diagram Operational Description required to be submitted with this application be permanently withheld from public review. A bove mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Please contact me if there is any information you may need. Sincerely, N ame: Huiying He Date: 2020.10.27 Title: System engineer

Page 1 of 3 Appendix B: Photographs of EUT Product: Electronic scale Model: CW286BLE External Photos Page 2 of 3 Page 3 of 3

Label Artwork and Location Model: CW286BLE Label: Size: L*W=50*30mm Location

Page 1 of 3 Appendix B: Photographs of EUT Product: Electronic scale Model: CW286BLE Internal Photos Page 2 of 3 Page 3 of 3 Antenna

RF exposure evaluation §2.1093 Radiofrequency radiation exposure evaluation: Portable Devices. According to§15.247(i) and§1.1307b(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the commission’s guidance. The 1-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR, where  f(GHz) is the RF channel transmit frequency in GHz  Power and distance are rounded to the nearest mW and mm before calculation  When the minimum test separation distance is < 5 mm, a distance of 5 mm according is applied to determine SAR test exclusion.  The result is rounded to one decimal place for comparison For BLE: Channel Frequency (GHz) Max. Power (dBm) Tune up Power (dBm) Max. Tune up Power (dBm) Max. Tune up Power (mW) Test distance (mm) Result exclusion thresholds for 1-g SAR CH 00 2.402 3.76 3.0±1 4.0 2.51 5 0.78 3.0 Result: Base on the calculation value, No SAR measurement is required.

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID: 2AVEN-CW286BLE Product: Electronic scale Model No.: CW286BLE Additional Model No.: Please refer to page 5 Trade Mark: N/A Report No.: TCT201015E907 Issued Date: Oct. 20, 2020 Issued for : Shenzhen Unique Scales Co., Ltd Floor 3 & 6, Building A, No. 22, Huanping Road, Gaoqiao Community, Pingdi Street, Longgang District, Shenzhen, Guangdong, China Issued By: Shenzhen Tongce Testing Lab. 1B/F., Building 1, Yibaolai Industrial Park, Qiaotou, Fuyong, Baoan District, Shenzhen, Guangdong, China TEL: +86-755-27673339 FAX: +86-755-27673332 This report reference to TCT191217E009; Change model and additional model Note: This report shall not be reproduced except in full, without the written approval of Shenzhen Tongce Testing Lab. This document may be altered or revised by Shenzhen Tongce Testing Lab. personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT201015E907 Page 2 of 39 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TABLE OF CONTENTS 1. Test Certification....................................................................................... 3 2. Test Result Summary ............................................................................... 4 3. EUT Description ........................................................................................ 5 4. General Information .................................................................................. 6 4.1. Test environment and mode ................................................................................. 6 4.2. Description of Support Units ................................................................................ 6 5. Facilities and Accreditations ................................................................... 7 5.1. Facilities ................................................................................................................. 7 5.2. Location ................................................................................................................. 7 5.3. Measurement Uncertainty ..................................................................................... 7 6. Test Results and Measurement Data ...................................................... 8 6.1. Antenna requirement ............................................................................................ 8 6.2. Conducted Emission ............................................................................................. 9 6.3. Conducted Output Power ................................................................................... 10 6.4. Emission Bandwidth ........................................................................................... 13 6.5. Power Spectral Density ....................................................................................... 16 6.6. Test Specification ................................................................................................ 16 6.7. Conducted Band Edge and Spurious Emission Measurement ....................... 19 6.8. Radiated Spurious Emission Measurement ...................................................... 22 Appendix A: Photographs of Test Setup Appendix B: Photographs of EUT Report No.: TCT201015E907 Page 3 of 39 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. Test Certification Product: Electronic scale Model No.: CW286BLE Additional Model No.: Please refer to page 5 Trade Mark: N/A Applicant: Shenzhen Unique Scales Co., Ltd Address: Floor 3 & 6, Building A, No. 22, Huanping Road, Gaoqiao Community, Pingdi Street, Longgang District, Shenzhen, Guangdong, China Manufacturer: Shenzhen Unique Scales Co., Ltd Address: Floor 3 & 6, Building A, No. 22, Huanping Road, Gaoqiao Community, Pingdi Street, Longgang District, Shenzhen, Guangdong, China Date of Test: Dec. 18, 2019 – Dec. 24, 2019 Applicable Standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 FCC KDB 558074 D01 15.247 Meas Guidance v05r02 ANSI C63.10:2013 The above equipment has been tested by Shenzhen Tongce Testing Lab. and found compliance with the requirements set forth in the technical standards mentioned above. The results of testing in this report apply only to the product/system, which was tested. Other similar equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties. Tested By: Date: Dec. 24, 2019 Rleo Reviewed By: Date: Oct. 20, 2020 Beryl Zhao Approved By: Date: Oct. 20, 2020 Tomsin Report No.: TCT201015E907 Page 4 of 39 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 2. Test Result Summary Requirement CFR 47 Section Result Antenna requirement §15.203/§15.247 (c) PASS AC Power Line Conducted Emission §15.207 N/A Conducted Peak Output Power §15.247 (b)(3) PASS 6dB Emission Bandwidth §15.247 (a)(2) PASS Power Spectral Density §15.247 (e) PASS Band Edge §15.247(d) PASS Spurious Emission §15.205/§15.209 PASS Note: 1. PASS: Test item meets the requirement. 2. Fail: Test item does not meet the requirement. 3. N/A: Test case does not apply to the test object. 4. The test result judgment is decided by the limit of test standard. Report No.: TCT201015E907 Page 5 of 39 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 3. EUT Description Product: Electronic scale Model No.: CW286BLE Additional Model No.: CW222BLE, CW223BLE, CW225BLE, CW226BLE, CW227BLE, CW228BLE, CW229BLE, CW230BLE, CW270BLE, CW272BLE, CW273BLE, CW275BLE, CW276BLE, CW277BLE, CW278BLE, CW279BLE, CW280BLE, CW281BLE, CW282BLE, CW283BLE, CW285BLE, CW287BLE, CW288BLE, CW289BLE, CW290BLE, CW291BLE, CW292BLE, CW293BLE, CW295BLE, CW296BLE, CW297BLE, CW298BLE, CW299BLE, CW300BLE, CW311BLE, CW312BLE, CW313BLE, CW315BLE, CW316B…

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Page 1 of 1 Appendix A: Photographs of Test Setup Product: Electronic scale Model: CW286BLE Radiated Emission