XEY-ZX-LVLow Voltage Thermostat

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Federal Communications Commission Authorization and Evaluation Division Permanent Confidentiality Request regarding application for certification of FCC ID: XEY-ZX-LV. Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request permanent confidential treatment of information accompanying this application as outlined below: Exhibit Type Block diagram, Schematics, Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public, the public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Jianan Cao

ZX_Low Voltage Thermostat External Photos:

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ZX-LV-Thermostat Internal Photos:

© TÜV SÜD Canada Inc. This test report shall not be reproduced except in full, without written approval of TÜV SÜD Canada Inc. April 23, 2020 FCC-XEYZX-LV_RF_Exposure Exhibit: RF Exposure – FCC FCC ID: XEY-ZX-LV IC: 8410A-ZXLV © TÜV SÜD Canada Inc. This test report shall not be reproduced except in full, without written approval of TÜV SÜD Canada Inc. April 23, 2020 FCC-XEY-ZX-LV_RF_Exposure 1 Product ZX Low Voltage Thermostat Verdant Environmental Technologies Inc Client Standard(s) FCC Part 15 Subpart 15.247:2016 FCC KDB 447498:2015 SAR Calculations: 902.8 – 927.7 MHz FHSS transmitter The EUT contains a 902 – 928 MHz and a 2400 – 2483.5 MHz FHSS transmitters. The firmware guarantees simultaneous operation will not occur and therefore antenna co-location testing is not applicable. This device is designed to be operated handheld and for the purpose of demonstrating compliance with MPE requirements and SAR exemption; we present for a worst case 5mm distance and 100 % duty cycle. FCC Requirements: SAR test exclusion guidance As per FCC KDB 447498 D01 Section 4.3.1 a), the 1-g extremity SAR Test Exclusion Threshold for 100 MHz to 6 GHz at test separation distances ≤ 50 mm is determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] [√f(GHz)] ≤ 3.0 Performing the calculation, of the worst case mentioned above, using the maximum power measured of 9.9mW (see page 49 on TR-7169005571-FCC-ISED_Low Voltage Thermostat.pdf) yields to: 9.9 5 ∙ √ 0.927525=1.91; 1.91 is below the 3.0 worst case limit, so this device complies with FCC requirements ISED Requirements: SAR test exclusion guidance As per Table 1 in RSS-102, Section 2.5.1, the limit at 1900MHz is 7mW at 5mm or less. This device has effective isotropic radiated power with a peak value of 103.5 dBμV/m i - 95.2 (factor to convert to EIRP at 3 meters) of 8.3dBm, or 6.8mW. • 6.8mW is less than 7mW limit as per section 2.5.1 on RS-102, thus the device meets the exception rules. © TÜV SÜD Canada Inc. This test report shall not be reproduced except in full, without written approval of TÜV SÜD Canada Inc. April 23, 2020 FCC-XEY-ZX-LV_RF_Exposure 1 Product ZX Low Voltage Thermostat Verdant Environmental Technologies Inc Client Standard(s) FCC Part 15 Subpart 15.247:2016 FCC KDB 447498:2015 SAR Calculations: 2412 – 2462 MHz DTS transmitter FCC Requirements: SAR test exclusion guidance As per FCC KDB 447498 D01 Section 4.3.1 a), the 1-g extremity SAR Test Exclusion Threshold for 100 MHz to 6 GHz at test separation distances ≤ 50 mm is determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] [√f(GHz)] ≤ 3.0. Performing the calculation, of the worst-case (at the antenna output) of 8.03mW (see page 48 on TR-7169005571-FCC-ISED_Low Voltage Thermostat.pdf) yields to: 8.03 5 ∙ √ 2.402=1.55, 1.55 is below the 3.0 worst case limit, so this device complies with FCC requirements ISED Requirements: SAR test exclusion guidance As per Table 1 in RSS-102, Section 2.5.1 the power limit at 2450MHz at 5mm or less is 4mW. This device has effective isotropic radiated power with a peak value of 99dBμV/m ii - 95.2 (factor to convert to EIRP at 3 meters) of 3.8dBm, or 2.4mW. • 2.4mW is less than 4mW limit as per section 2.5.1 on RS-102, thus the device meets the SAR exclusion criterion. i See Table A.1 in page 106 of TR-7169005571-FCC-ISED_Low Voltage Thermostat.pdf ii See Table A.5 in page 108 of TR-7169005571-FCC-ISED_Low Voltage Thermostat.pdf

TÜV SÜD Product Service is a trading name of TUV SUD Ltd 2972 Joseph-A-Bombardier Laval, QC H7P 6E3 Canada TUV SUD Ltd is a TÜV SÜD Group Company Phone: +450-687-4976 www.tuv-sud.ca TÜV SÜD Product Service RESPONSIBLE FOR NAME DATE SIGNATURE Test Specialist Jose Martinez 12-09-2019 Authorised Signatory Scott Drysdale 12-09-2019 Signatures in this approval box have checked this document in line with the requirements of TÜV SÜD Product Service document control rules. EXECUTIVE SUMMARY A sample of this product was tested and found to be in compliance with FCC Part 15.247 Subpart C/ ICES 003 Issue 6 and RSS- 247 Issue 2. A2LA Cert. No. 2955.20 DISCLAIMER AND COPYRIGHT This non-binding report has been prepared by TÜV SÜD Canada with all reasonable skill and care. The document is confidential to the potential Client and TÜV SÜD Canada. No part of this document may be reproduced without the prior written approval of TÜV SÜD Canada. © TÜV SÜD. ACCREDITATION Our A2LA Accreditation does not cover opinions and interpretations and any expressed are outside the scope of our A2LA Accreditation. FCC/ISED RF Test Report As per RSS-247 Issue 2 FCC Part 15.247 Subpart C & ICES 003 Issue 6 on the ZX Low Voltage Thermostat IC:8410A-ZXLV; FCC ID: XEY-ZX-LV Prepared to: Verdant. Environmental Technologies, Inc. 1850 – 55 th Avenue, Lachine, Quebec, H8T 3J5 CANADA Verdant Environmental Technologies, Inc.. Document Number: TR-7169005571- FCC-ISED ZXWU Wireless Thermostat ZX Wireless Thermostat COMMERCIAL-IN-CONFIDENCE No part of this document may be reproduced without the prior written approval of TÜV SÜD Canada. © TÜV SÜD. Page 2 of 108 Contents 1 Report Summary .................................................................................................................... 7 2 Introduction ............................................................................................................................ 8 3 EUT: ZX LOW VOLTAGE THERMOSTAT ............................................................................. 13 3.1 Specifications: ........................................................................................................................ 13 3.2 Modes of Operation ................................................................................................................ 16 3.3 Setup Diagram ....................................................................................................................... 16 4 Deviations from the Standard .............................................................................................. 17 5 Measurement Uncertainty .................................................................................................... 17 6 99% Bandwidth .................................................................................................................... 18 6.1 Purpose & Methods ................................................................................................................ 18 6.2 Test Specifications ................................................................................................................. 18 6.3 Test Results ........................................................................................................................... 19 6.4 Graphs ................................................................................................................................... 20 6.5 Test Instruments .................................................................................................................... 26 7 6dB Bandwidth of Digitally Modulated Systems ................................................................. 27 7.1 Purpose & Methods ................................................................................................................ 27 7.2 Test Specifications ................................................................................................................. 27 7.3 Test Results ........................................................................................................................... 28 7.4 Graphs ................................................................................................................................... 29 7.5 Test Instruments .................................................................................................................... 32 8 Hopping Channel ................................................................................................................. 33 8.1 Purpose & Methods ................................................................................................................ 33 8.2 Test Specifications ................................................................................................................. 33 8.3 Limits ..................................................................................................................................... 34 8.4 Test Results ........................................................................................................................... 34 8.5 Graphs ................................................................................................................................... 35 8.6 Test Instruments .................................................................................................................... 38 9 Channel Separation.............................................................................................................. 39 9.1 Purpose & Methods ................................................................................................................ 39 9.2 Test Specifications ................................................................................................................. 39 9.3 Limits ..................................................................................................................................... 40 9.4 Test Results ...............................…

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