RF exposure info

FCC ID: ZQAT50

RF Exposure Info

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FCCID_3760622

RF Exposure Evaluation Report Report No. : FA7D2233 RF Exposure Evaluation Report APPLICANT : Nest Labs Inc EQUIPMENT : Nest Temperature Sensor MODEL NAME : A0106 FCC ID : ZQAT50 STANDARD : 47 CFR Part 2.1091 We, SPORTON INTERNATIONAL INC., would like to declare that the device has been evaluated in accordance with 47 CFR Part 2.1091, and pass the limit. Without written approval of SPORTON INTERNATIONAL INC., the test report shall not be reproduced except in full. Reviewed by: Eric Huang / Manager Approved by: Jones Tsai / Manager SPORTON INTERNATIONAL INC. No.52, Hwa Ya 1st Rd., Hwa Ya Technology Park, Kwei-Shan District, Taoyuan City, Taiwan (R.O.C.) SPORTON INTERNATIONAL INC. Page Number : 1 of 6 TEL : 886-3-327-3456 Report Issued Date : Jan. 12, 2018 FAX : 886-3-328-4978 Report Version : Rev. 01 FCC ID : ZQAT50

RF Exposure Evaluation Report Report No. : FA7D2233 Table of Contents 1. ADMINISTRATION DATA ........................................................................................................................... 4 1.1. Testing Laboratory ............................................................................................................................. 4 2. DESCRIPTION OF EQUIPMENT UNDER TEST (EUT) ............................................................................. 4 3. MAXIMUM RF AVERAGE OUTPUT POWER AMONG PRODUCTION UNITS ........................................ 4 4. RF EXPOSURE LIMIT INTRODUCTION .................................................................................................... 5 5. RADIO FREQUENCY RADIATION EXPOSURE EVALUATION ............................................................... 6 5.1. Standalone Power Density Calculation ............................................................................................. 6 SPORTON INTERNATIONAL INC. Page Number : 2 of 6 TEL : 886-3-327-3456 Report Issued Date : Jan. 12, 2018 FAX : 886-3-328-4978 Report Version : Rev. 01 FCC ID : ZQAT50

RF Exposure Evaluation Report Report No. : FA7D2233 Revision History REPORT NO. VERSION DESCRIPTION ISSUED DATE FA7D2233 Rev. 01 Initial issue of report Jan. 12, 2018 SPORTON INTERNATIONAL INC. Page Number : 3 of 6 TEL : 886-3-327-3456 Report Issued Date : Jan. 12, 2018 FAX : 886-3-328-4978 Report Version : Rev. 01 FCC ID : ZQAT50

RF Exposure Evaluation Report Report No. : FA7D2233 1. Administration Data 1.1. Testing Laboratory Testing Laboratory Test Site SPORTON INTERNATIONAL INC. No.52, Hwa Ya 1st Rd., Hwa Ya Technology Park, Kwei-Shan District, Taoyuan City, Taiwan (R.O.C.) Test Site Location TEL: +886-3-327-3456 FAX: +886-3-328-4978 Applicant Company Name Nest Labs Inc Address 3400 Hillview Ave. Pola Alto, CA, 94304, USA 2. Description of Equipment Under Test (EUT) Product Feature & Specification EUT Type Nest Temperature Sensor Model Name A0106 FCC ID ZQAT50 Wireless Technology and Bluetooth: 2402 MHz ~ 2480 MHz Frequency Range Mode Bluetooth LE Remark: The above EUT's information was declared by manufacturer. Please refer to the specifications or user's manual for more detailed description. 3. Maximum RF average output power among production units Average Power (dBm) Band / Mode LE GFSK Bluetooth 20 SPORTON INTERNATIONAL INC. Page Number : 4 of 6 TEL : 886-3-327-3456 Report Issued Date : Jan. 12, 2018 FAX : 886-3-328-4978 Report Version : Rev. 01 FCC ID : ZQAT50

RF Exposure Evaluation Report Report No. : FA7D2233 4. RF Exposure Limit Introduction According to ANSI/IEEE C95.1-1992, the criteria listed in Table 1 shall be used to evaluate the environmental impact of human exposure to radio frequency (RF) radiation as specified in §1.1310. The MPE was calculated at 20 cm to show compliance with the power density limit. The following formula was used to calculate the Power Density: 𝐏𝐆 𝐒= 𝟒𝛑𝐑𝟐 Where: S = Power Density P = Output Power at Antenna Terminals G = Gain of Transmit Antenna (linear gain) R = Distance from Transmitting Antenna SPORTON INTERNATIONAL INC. Page Number : 5 of 6 TEL : 886-3-327-3456 Report Issued Date : Jan. 12, 2018 FAX : 886-3-328-4978 Report Version : Rev. 01 FCC ID : ZQAT50

RF Exposure Evaluation Report Report No. : FA7D2233 5. Radio Frequency Radiation Exposure Evaluation 5.1. Standalone Power Density Calculation Power Antenna Maximum Maximum Maximum Average Frequency Density at Limit Band Gain Power EIRP EIRP EIRP (MHz) 20cm (mW/cm^2) (dBi) (dBm) (dBm) (W) (mW) (mW/cm^2) Bluetooth 2402.0 2.46 20.00 22.460 0.176 176.198 0.035 1.000 Note: For conservativeness, the lowest frequency of each band is used to determine the MPE limit of that band Conclusion: According to 47 CFR §2.1091, the RF exposure analysis concludes that the RF Exposure is FCC compliant. SPORTON INTERNATIONAL INC. Page Number : 6 of 6 TEL : 886-3-327-3456 Report Issued Date : Jan. 12, 2018 FAX : 886-3-328-4978 Report Version : Rev. 01 FCC ID : ZQAT50


Document Created: 2019-11-21 23:18:30
Document Modified: 2019-11-21 23:18:30
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