2AXL4-SCA900wireless door bell

Shenzhen Chinuo Technology Co., Ltd. August 28, 2020 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AXL4-SCA900 Product Name: wireless door bell Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commission’s rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...)  Schematics  Block diagram  Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. <Signature> Name：Lian Jingquan Title：Manager Company：Shenzhen Chinuo Technology Co., Ltd.

Shenzhen Chinuo Technology Co., Ltd. Sep 17, 2020: Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Flux Compliance Service Laboratory 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan China (Name of Agent company name and address) to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with Shenzhen Chinuo Technology Co., Ltd. 229, 2nd Floor, Building A, Pioneer Park, No.413, Silian Road, Henggang Street, Longgang District, Shenzhen (Applicant Name and address) <Signature> Name：Lian Jingquan Title：Manager Company：Shenzhen Chinuo Technology Co., Ltd.

Page 1 of 3 Report No.:FCS202008047W01 External photos Photo 1 Photo 2 Page 2 of 3 Report No.:FCS202008047W01 Photo 3 Photo 4 Page 3 of 3 Report No.:FCS202008047W01 Photo 5 Photo 6

Label and Label Location FCC ID: 2AXL4-SCA900 L*W: 10mm*8mm white font on a Black label

Page 1 of 3 Report No.:FCS202008047W01 Internal photos Photo 1 Photo 2 Page 2 of 3 Report No.:FCS202008047W01 Photo 3 Photo 4 Page 3 of 3 Report No.:FCS202008047W01 Photo 5 Photo 6

RF Exposure evaluation According to 447498 D01 General RF Exposure Guidance v05 The 1-g and 10-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 and ≤ 7.5 for 10- g extremity 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 The result is rounded to one decimal place for comparison eirp = pt x gt = (EXd) 2 /30 where: pt = transmitter output power in watts, gt = numeric gain of the transmitting antenna (unitless), E = electric field strength in V/m, --- 10 ((dBuV/m)/20) /10 6 d = measurement distance in meters (m)---3m Sopt = (EXd) 2 /30 x gt Ant gain=0.50dBi ; so Ant numeric gain=1.122 Field strength =75.54dBuV/m @3m So Pt={ [10 (75.54 /20) /10 6 x3] 2 /30x1.122}x1000 mW = 0.01mW So ( 0.01mW/5mm)x √0.43392 GHz =0.0013 < 3 Then SAR evaluation is not required

Flux Compliance Service Laboratory Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.FCS-lab.com FCC Test Report Report No: FCS202008047W01 Issued for Applicant: Shenzhen Chinuo Technology Co., Ltd. Address: 229, 2nd Floor, Building A, Pioneer Park, No.413, Silian Road, Henggang Street, Longgang District, Shenzhen Product Name: wireless door bell Brand Name: NA Model Name: SC-A900 Series Model: NA FCC ID: 2AXL4-SCA900 Issued By: Flux Compliance Service Laboratory Add: Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.FCS-lab.com Page 2 of 29 Report No.:FCS202008047W01 Flux Compliance Service Laboratory Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.FCS-lab.com TEST RESULT CERTIFICATION Applicant’s Name ...................: Shenzhen Chinuo Technology Co., Ltd. Address ..................................: 229, 2nd Floor, Building A, Pioneer Park, No.413, Silian Road, Henggang Street, Longgang District, Shenzhen Manufacture's Name ..............: Shenzhen Chinuo Technology Co., Ltd. Address ..................................: 229, 2nd Floor, Building A, Pioneer Park, No.413, Silian Road, Henggang Street, Longgang District, Shenzhen Product Description Product Name ........................: wireless door bell Brand Name .........................: NA Model Name ...........................: SC-A900 Series Model ..........................: NA Test Standards .......................: FCC Rules and Regulations Part 15 Subpart C, Section 231 Test Procedure .......................: ANSI C63.10:2013 This device described above has been tested FCS, the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of FCS, this document may be altered or revised by FCS, personal only, and shall be noted in the revision of the document.. Date of Test ............................. : Date (s) of performance of tests : 01 Spe. 2020 ~ 10 Spe. 2020 Date of Issue ............................ : 10 Spe. 2020 Test Result ................................ : Pass Tested by : (Scott Shen) Reviewed by : (Duke Qian) Approved by : (Kait Chen) Page 3 of 29 Report No.:FCS202008047W01 Flux Compliance Service Laboratory Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.FCS-lab.com Table of Contents Page 1. SUMMARY OF TEST RESULTS .......................................................................................... 6 1.1 TEST FACTORY ............................................................................................................ 7 1.2 MEASUREMENT UNCERTAINTY ................................................................................. 7 2. GENERAL INFORMATION ................................................................................................... 8 2.1 GENERAL DESCRIPTION OF THE EUT ....................................................................... 8 2.2 DESCRIPTION OF THE TEST MODES......................................................................... 9 2.3 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS ................ 10 2.4 EQUIPMENTS LIST..................................................................................................... 11 3 CONDUCTED EMISSION MEASUREMENT ....................................................................... 12 3.1 LIMIT ........................................................................................................................... 12 3.2 TEST PROCEDURE .................................................................................................... 12 3.3 TEST SETUP ............................................................................................................... 13 3.4 TEST RESULTS .......................................................................................................... 13 4. RADIATED EMISSION MEASUREMENT ........................................................................... 14 4.1 LIMIT ........................................................................................................................... 14 4.2 TEST PROCEDURE .................................................................................................... 15 4.3 TEST SETUP ............................................................................................................... 16 4.4 TEST RESULTS .......................................................................................................... 17 5. TRANSMITTER TIME ......................................................................................................... 22 5.1 LIMIT ........................................................................................................................... 22 5.2 TEST PROCEDURE .................................................................................................... 22 5.3 TEST SETUP ............................................................................................................... 22 5.4 TEST RESULTS .......................................................................................................... 22 6. 20 DB BANDWIDTH TEST ................................................................................................. 23 6.1 LIMIT ........................................................................................................................... 23 6.2 TEST PROCEDURE ...............................................................................…

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Blow 1GHz for radiated emission test setup Above 1GHz for radiated emission test setup