190827010RFC_2_FCC Part 1.1307 MPE REPORT2

FCC ID: 2AJ5K-LAKE-X

RF Exposure Info

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FCCID_4505958

Uni+#+nTrust Page 1 of 9 Report No.: 190827010RFC—2 FCC RF EXPOSURE EVALUATION REPORT Product Name: Smart Thermostat Trade Mark: N/A Model No.: LAKE X Report Number: 190827010RFC—2 Test Standards: FCC 47 CFR Part 1 Subpart I FCC ID: 2AJSK—LAKE—X Test Result: PASS Date of Issue: October 25, 2019 Prepared for: Beijing Hailin Energy Saving Technology Co., Ltd. Huilongguan International Information Industry Base, Changping District, Beijing, China Prepared by: Shenzhen UnionTrust Quality and Technology Co., Ltd. 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China TEL: +86—755—2823 0888 FAX: +86—755—2823 0886 Reviewed by: A2—— Kevin Liang Assistant Manager Approved by: —\_ . _ s Date: October 25, 2019 ~— Billy Li Technical Director Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86—755—28230888 Fax: +86—755—28230886 E—mail: info@uttlab.com Hitp:tmww uttlab.com

Page 2 of 9 Report No.: 190827010RFC-2 Version Version No. Date Description V1.0 October 25, 2019 Original Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 3 of 9 Report No.: 190827010RFC-2 CONTENTS 1. GENERAL INFORMATION ....................................................................................................................................... 4 1.1 CLIENT INFORMATION ........................................................................................................................................ 4 1.2 EUT INFORMATION ............................................................................................................................................ 4 1.3 PRODUCT SPECIFICATION SUBJECTIVE TO THIS STANDARD ................................................................................. 4 1.4 OTHER INFORMATION ......................................................................................................................................... 5 1.5 GENERAL DESCRIPTION OF APPLIED STANDARDS ............................................................................................... 5 1.6 TEST LOCATION ................................................................................................................................................. 5 1.7 TEST FACILITY ................................................................................................................................................... 5 1.8 DEVIATION FROM STANDARDS ............................................................................................................................ 6 1.9 ABNORMALITIES FROM STANDARD CONDITIONS .................................................................................................. 6 1.10 OTHER INFORMATION REQUESTED BY THE CUSTOMER ........................................................................................ 6 2. EQUIPMENT LIST .................................................................................................................................................... 6 3. MPE EVALUATION ................................................................................................................................................... 7 3.1 REFERENCE DOCUMENTS FOR EVALUATION ........................................................................................................ 7 3.2 MPE COMPLIANCE REQUIREMENT ..................................................................................................................... 7 3.2.1 LIMITS ................................................................................................................................................... 7 3.2.2 TEST PROCEDURE ................................................................................................................................. 7 3.3 MPE CALCULATION METHOD ............................................................................................................................. 7 3.4 8 3.5 MPE CALCULATION RESULTS ............................................................................................................................ 8 3.4.1 FOR WLAN ........................................................................................................................................... 8 APPENDIX 1 PHOTOS OF TEST SETUP ....................................................................................................................... 9 APPENDIX 2 PHOTOS OF EUT CONSTRUCTIONAL DETAILS ................................................................................... 9 Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 4 of 9 Report No.: 190827010RFC-2 1. GENERAL INFORMATION 1.1 CLIENT INFORMATION Applicant: Beijing Hailin Energy Saving Technology Co., Ltd. Huilongguan International Information Industry Base, Changping District, Address of Applicant: Beijing, China Manufacturer: Beijing Hailin Energy Saving Technology Co., Ltd. Huilongguan International Information Industry Base, Changping District, Address of Manufacturer: Beijing, China 1.2 EUT INFORMATION Product Name: Smart Thermostat Model No.: LAKE X Trade Mark: N/A DUT Stage: Production Unit EUT Supports Function: 2.4 GHz ISM Band: IEEE 802.11b/g/n Sample Received Date: August 27, 2019 Sample Tested Date: August 27, 2019 to September 27, 2019 1.3 PRODUCT SPECIFICATION SUBJECTIVE TO THIS STANDARD For 2.4 GHz ISM Band of Wi-Fi Frequency Band: 2400 MHz to 2483.5 MHz Frequency Range: 2412 MHz to 2462 MHz Support Standards: IEEE 802.11b, IEEE 802.11g, IEEE 802.11n-HT20 IEEE 802.11b: DSSS(CCK, DQPSK, DBPSK) Type of Modulation: IEEE 802.11g: OFDM(64-QAM, 16-QAM, QPSK, BPSK) IEEE 802.11n-HT20: OFDM(64-QAM, 16-QAM, QPSK, BPSK) IEEE 802.11b: Up to 11 Mbps Data Rate: IEEE 802.11g: Up to 54 Mbps IEEE 802.11n-HT20: Up to MCS7 IEEE 802.11b: 11 Number of Channels: IEEE 802.11g: 11 IEEE 802.11n-HT20: 11 Channel Separation: 5 MHz Antenna Type: PCB Antenna Antenna Gain: 2 dBi IEEE 802.11b: 18.78 dBm Maximum Peak Power: IEEE 802.11g: 22.41 dBm IEEE 802.11n-HT20: 22.41 dBm Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 5 of 9 Report No.: 190827010RFC-2 1.4 OTHER INFORMATION Test channels for 2.4 GHz ISM Band of Wi-Fi Test RF Channel Lists Mode Tx/Rx Frequency Lowest(L) Middle(M) Highest(H) Channel 1 Channel 6 Channel 11 IEEE 802.11b 2412 MHz to 2462 MHz 2412 MHz 2437 MHz 2462 MHz Channel 1 Channel 6 Channel 11 IEEE 802.11g 2412 MHz to 2462 MHz 2412 MHz 2437 MHz 2462 MHz Channel 1 Channel 6 Channel 11 IEEE 802.11n-HT20 2412 MHz to 2462 MHz 2412 MHz 2437 MHz 2462 MHz 1.5 GENERAL DESCRIPTION OF APPLIED STANDARDS The EUT is a RF product, according to the specifications of the manufacturers. It must comply with the requirements of the following standards: FCC 47 CFR Part 1 Subpart I All test items have been performed and recorded as per the above standards 1.6 TEST LOCATION All tests were performed at: Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China 518109 Telephone: +86 (0) 755 2823 0888 Fax: +86 (0) 755 2823 0886 1.7 TEST FACILITY The test facility is recognized, certified, or accredited by the following organizations: CNAS-Lab Code: L9069 The measuring equipment utilized to perform the tests documented in this report has been calibrated once a year or in accordance with the manufacturer's recommendations, and is traceable under the ISO/IEC/EN 17025 to international or national standards. Equipment has been calibrated by accredited calibration laboratories. A2LA-Lab Certificate No.: 4312.01 Shenzhen UnionTrust Quality and Technology Co., Ltd. has been accredited by A2LA for technical competence in the field of electrical testing, and proved to be in compliance with ISO/IEC 17025: 2005 General Requirements for the Competence of Testing and Calibration Laboratories and any additional program requirements in the identified field of testing. ISED Wireless Device Testing Laboratories CAB identifier: CN0032 FCC Accredited Lab. Designation Number: CN1194 Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 6 of 9 Report No.: 190827010RFC-2 Test Firm Registration Number: 259480 1.8 DEVIATION FROM STANDARDS None. 1.9 ABNORMALITIES FROM STANDARD CONDITIONS None. 1.10 OTHER INFORMATION REQUESTED BY THE CUSTOMER None. 2. EQUIPMENT LIST Please refer to the RF test report. Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 7 of 9 Report No.: 190827010RFC-2 3. MPE EVALUATION 3.1 REFERENCE DOCUMENTS FOR EVALUATION No. Identity Document Title PROCEDURES IMPLEMENTING THE NATIONAL 1 FCC 47 CFR Part 1 Subpart I ENVIRONMENTAL POLICY ACT OF 1969 2 KDB 447498 D01 General RF RF EXPOSURE PROCEDURES AND EQUIPMENT Exposure Guidance v06 AUTHORIZATION POLICIES FOR MOBILE AND PORTABLE DEVICES 3.2 MPE COMPLIANCE REQUIREMENT 3.2.1 Limits According to §1.1307(b)(1), system operating under the provisions of this section shall be operating in a manner that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure. Limits for Occupational / Controlled Exposure Electric Field Magnetic Field Averaging Times Frequency range Power Density (S) Strength (E) Strength (H) | E |2, | H |2 or S (MHz) (mW/cm2) (V/m) (A/m) (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 Limits for General Population / Uncontrolled Exposure Electric Field Magnetic Field Averaging Times Frequency range Power Density (S) Strength (E) Strength (H) | E |2, | H |2 or S (MHz) (mW/cm2) (V/m) (A/m) (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 30 Note: f = frequency in MHz: * = Plane-wave equivalents power density. 3.2.2 Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. 3.3 MPE CALCULATION METHOD S = PG/4πR^2= EIRP/4πR^2 S = power density (in appropriate units, e.g., mw/cm2) P = power input to the antenna (in appropriate units, e.g., mw) G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the power gain factor is normally numeric gain. R = distance to the center of radiation of the antenna (in appropriate units, e.g., cm) Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 8 of 9 Report No.: 190827010RFC-2 3.4 3.5 MPE CALCULATION RESULTS Note: For the test results, the EUT had been tested with all conditions. But only the worst case was shown in test report. 3.4.1 For WLAN For Wi-Fi function, operating at 2412MHz to 2462 MHz for IEEE802.11b/g/n 3.4.1.1 Antenna Type: Chain 0: PCB Antenna 3.4.1.2 Antenna Gain: Chain 0: 2412MHz to 2462 MHz: 2 dBi 3.4.1.3 Results for WLAN Declared maximum Max. positive Calculated Declared conducted tolerance Antenna MPE MPE Freq. maximum maximum Operating Mode average according Gain Limit Value EIRP EIRP output manufacturer power (MHz) (dBm) (dBi) (dBm) (mW) (mw/cm2) 2412 18 1 2 22 158.4893 1 0.0315 IEEE 802.11b 2437 18 1 2 22 158.4893 1 0.0315 SISO 2462 18 1 2 22 158.4893 1 0.0315 2412 22 1 2 25 316.2278 1 0.0629 IEEE 802.11g 2437 22 1 2 25 316.2278 1 0.0629 IEEE 802.11n-HT20 2462 22 1 2 25 316.2278 1 0.0629 Remark: 1. MPE evaluate distance is 20cm from user manual provide by manufacturer. Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 9 of 9 Report No.: 190827010RFC-2 APPENDIX 1 PHOTOS OF TEST SETUP N/A APPENDIX 2 PHOTOS OF EUT CONSTRUCTIONAL DETAILS Refer to Appendix 2 for EUT external and internal photos. *** End of Report *** The test report is effective only with both signature and specialized stamp. The result(s) shown in this report refer only to the sample(s) tested. Without written approval of UnionTrust, this report can’t be reproduced except in full. Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com


Document Created: 2019-11-11 12:25:46
Document Modified: 2019-11-11 12:25:46
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