2AYCK174XXXXWifi Digital Door Lock

12/1/2020 Federal Communications Commission 445 12 th Street SW Washington, DC 20554 LEWIS HYMAN INC. Innovation for life� Subject: Limited Agency Agreement L ewis Hyman Inc. FCC ID: 2AYCK174XXXX To Whom It May Concern: We, Lewis Hyman Inc, hereby authorized Intertek Testing Services to act as our Agent for the purpose of preparing application for FCC ID number 2AYCK174XXXX under all applicable parts of the FCC rules and regulations. The effective date of this limited agency agreement is 12/1/2020. The Limited Agency Agreement expires on 6/30/2021, unless sooner terminated or extended by written notice to Intertek Testing Services and the Federal Communications Commission. This is t o advise that we are in full compliance with the Anti-Drug Abuse Act. The applicant is not subject to a denial offederal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 U.S.C. 862, and no party to the application is subject to a denial offederal benefits pursuant to that section. If you have any questions or comments, please do not hesitate to contact me. Sincerely, Robert S. LeBlanc President Lewis Hyman Inc.

12/1/2020 Attention: Application Examiner RE: Request for Confidentiality Applicant: Lewis Hyman Inc. FCC ID: 2AYCK174XXXX To Whom It May Concern: Permanent Confidentiality LEWIS HYMAN INC. Innovation for life� Request is hereby submitted by Lewis Hyman Inc. to withhold permanently from public review certain portions of the application for equipment certification for the referenced FCC identifiers. This request for confidentiality is made pursuant to 47 CFR 0.457(d) and 0.459 of the FCC Rules. In particular, the following sections of the application are to be kept permanently confidential: • Schematics • Detailed Block Diagrams • Detailed Operational/Functional Description Rationale for request for confidentiality: Lewis Hyman Inc. has invested considerable time and materials in research and development to produce the referenced product. Disclosure of the permanently confidential portions of this application to competitors would not only give them significant competitive advantages in developing similar products, but would also disclose successful implementation of unpublished, leading edge technology developed by us If you have questions or need further information, please contact the undersigned. 1(1) Robert S. L eBlanc President Lewis Hyman Inc.

Intertek Testing Services Shenzhen Ltd. Guangzhou Branch Room 02, & 101/E201/E301/E401/E501/E601/E701/E801 of Room 01 1-8/F., No. 7-2. Caipin Road, Science City, GETDD, Guangzhou, Guangdong, China Job No.: 201023004GZU FCC ID: 2AYCK174XXXX Version: 08 July 2020 Page 1 of 2 FCC RF Exposure-Mobile (MPE) RF Exposure Compliance Requirement Model no.: 1743010, 1743011 1. Standard requirement 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 limit for maximum permissible exposure. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as a mobile device whereby a distance of 0.2m normally can be maintained between the user and the device. (a) Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S)(mW/cm 2 ) Averaging Times ׀E׀ 2 ׀, H׀ 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842/f 4.89/f (900/f)* 6 30-300 61.4 0.163 1.0 6 300-1500 -- -- F/300 6 1500-100000 -- -- 5 6 (b) Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S)(mW/cm 2 ) Averaging Times ׀E׀ 2 ׀, H׀ 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 -- -- F/1500 30 1500-100000 -- -- 1.0 30 Note: f=frequency in MHz; *Plane-wave equivalent power density Intertek Testing Services Shenzhen Ltd. Guangzhou Branch Room 02, & 101/E201/E301/E401/E501/E601/E701/E801 of Room 01 1-8/F., No. 7-2. Caipin Road, Science City, GETDD, Guangzhou, Guangdong, China Job No.: 201023004GZU FCC ID: 2AYCK174XXXX Version: 08 July 2020 Page 2 of 2 FCC RF Exposure-Mobile (MPE) 2. MPE Calculation Method E (V/m)=(30*P*G) 0.5 /d Power Density: Pd(W/m 2 )=E 2 /377 E=Electric Field (V/m) P=Peak RF output Power (W) G=EUT Antenna numeric gain (numeric) d= Separation distance between radiator and human body (m) The formula can be changed to Pd= (30*P*G)/(377*d 2 ) From the peak EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the used antenna, the RF power density can be obtained. 3. Calculated Result and Limit (1)802.11b 1Mbps data rate: Frequency (MHz) Antenna Gain (Numeric) Peak Output Power (dBm) Peak Output Power (mW) Power Density (S) (mW/cm 2 ) Limit of Power Density (S) (mW/cm 2 ) Test Result 2412 1.122 16.86 48.53 0.0108 1 Complies 2437 1.122 17.78 59.98 0.0134 1 Complies 2462 1.122 17.84 60.81 0.0136 1 Complies (2) 802.11g 6Mbps data rate: Frequency (MHz) Antenna Gain (Numeric) Peak Output Power (dBm) Peak Output Power (mW) Power Density (S) (mW/cm 2 ) Limit of Power Density (S) (mW/cm 2 ) Test Result 2412 1.122 15.87 38.64 0.0086 1 Complies 2437 1.122 15.95 39.36 0.0088 1 Complies 2462 1.122 15.83 38.28 0.0085 1 Complies (2) 802.11n HT20 6.5Mbps data rate: Frequency (MHz) Antenna Gain (Numeric) Peak Output Power (dBm) Peak Output Power (mW) Power Density (S) (mW/cm 2 ) Limit of Power Density (S) (mW/cm 2 ) Test Result 2412 1.122 14.20 26.30 0.0059 1 Complies 2437 1.122 14.73 29.72 0.0066 1 Complies 2462 1.122 14.76 29.92 0.0067 1 Complies Test Location: Intertek Testing Services Shenzhen Ltd. Guangzhou Branch All tests were performed at: Room102/104, No 203, KeZhu Road, Science City, GETDD Guangzhou, China

Lewis Hyman Inc. TEST REPORT SCOPE OF WORK EMC TESTING–1743010, 1743011 REPORT NUMBER 201023004GZU-001 ISSUE DATE [REVISED DATE] 07-December-2020 [---------------------] PAGES 86 DOCUMENT CONTROL NUMBER FCC WIFI-d © 2017 INTERTEK TEST REPORT Room 02, & 101/E201/E301/ E401/E501/E601/E701/E801 of Room 01 1-8/F., No. 7-2. Caipin Road, Science City, GETDD, Guangzhou, Guangdong, China Telephone: +86 20 8213 9688 Facsimile: +86 20 3205 7538 www.intertek.com.cn This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement between Intertek and its Client. Intertek's responsibility and liability are limited to the terms and conditions of the agreement. Intertek assumes no liability to any party, other than to the Client in accordance with the agreement, for any loss, expense or damage occasioned by the use of this report. Only the Client is authorized to permit copying or distribution of this report and then only in its entirety. Any use of the Intertek name or one of its marks for the sale or advertisement of the tested material, product or service must first be approved in writing by Intertek. The observations and test results in this report are relevant only to the sample tested. This report by itself does not imply that the material, product, or service is or has ever been under an Intertek certification program. Intertek Testing Services Shenzhen Ltd. Guangzhou Branch Room 02, & 101/E201/E301/E401/E501/E601/E701/E801 of Room 01 1-8/F., No. 7-2. Caipin Road, Science City, GETDD, Guangzhou, Guangdong, China Version: 10 June 2019 Page 2 of 86 FCC WIFI-d Applicant Name & Address : Lewis Hyman Inc. 860 East Sandhill Avenue, Carson CA 90746 USA Manufacturing Site : Qingdao Tri-link Lock Group Co.,Ltd No.61 Hair Rd, Qingdao,China. Intertek Report No: FCC ID: 201023004GZU-001 2AYCK174XXXX Test standards 47 CFR PART 15 Subpart C: 2019 section 15.247 Sample Description Product : Wifi Digital Door Lock Model No. : 1743010, 1743011 Electrical Rating : DC 6V from battery Serial No. : Not Labeled Date Received : 23 October2020 Date Test Conducted : 30 November 2020-03 December 2020 Prepared and Checked By Oscar Gao Project Engineer Approved By: Helen Ma Team Leader TEST REPORT Intertek Report No.: 201023004GZU-001 Version: 10 June 2019 Page 3 of 86 FCC WIFI-d CONTENT TEST REPORT ........................................................................................................................... 1 CONTENT ............................................................................................................................. 3 1.0 TEST RESULT SUMMARY ............................................................................................ 4 2.0 GENERAL DESCRIPTION ............................................................................................. 5 2.1 P RODUCT DESCRIPTION ........................................................................................................ 5 2.2 R ELATED SUBMITTAL(S) GRANTS ........................................................................................... 5 2.3 T EST METHODOLOGY .......................................................................................................... 6 2.4 T EST FACILITY ..................................................................................................................... 6 3.0 SYSTEM TEST CONFIGURATION ................................................................................. 6 3.1 J USTIFICATION .................................................................................................................... 6 3.2 EUT EXERCISING SOFTWARE ................................................................................................. 7 3.3 S PECIAL ACCESSORIES .......................................................................................................... 7 3.4 M EASUREMENT UNCERTAINTY .............................................................................................. 7 3.5 E QUIPMENT MODIFICATION ................................................................................................. 8 3.6 S UPPORT EQUIPMENT LIST AND DESCRIPTION .......................................................................... 8 4.0 MEASUREMENT RESULTS .......................................................................................... 9 4.1 A NTENNA REQUIREMENT ..................................................................................................... 9 4.2 6 DB BANDWIDTH (DTS BANDWIDTH).................................................................................. 10 4.3 M AXIMUM PEAK CONDUCTED OUTPUT POWER ..................................................................... 17 4.4 P EAK POWER SPECTRAL DENSITY ......................................................................................... 24 4.5 O UT OF BAND CONDUCTED EMISSIONS ................................................................................ 31 4.6 O UT OF BAND RADIATED EMISSIONS .................................................................................... 42 4.7 R ADIATED EMISSIONS IN RESTRICTED BANDS ......................................................................... 42 4.8 B AND EDGES REQUIREMENT ............................................................................................... 81 4.9 C ONDUCTED EMISSION TEST ............................................................................................... 85 5.0 TEST EQUIPMENT LIST ............................................................................................. 86 TEST REPORT Intertek Report No.: 201023004GZU-001 Version: 10 June 2019 Page 4 of 86 FCC WIFI-d 1.0 TEST RESULT SUMMARY Test ItemTest RequirementTest MethodResult Antenna Requirement FCC PART 15 C section 15.247 (c) and Section 15.203 FCC PART 15 C section 15.247 (c) and Section 15.203 PASS 6 dB Bandwidth (DTS bandwidth) FCC PART 15 C section 15.247 (a)(2) ANSI C63.10: Clause 11.8 PASS Maxi…

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Radiated Emission (Below 1GHz) Radiated Emission (Above 1GHz)