FCC ID: 2ASYYGS368 Thermostat

(SiterwellElectronicsCo.,Limited) Federal Communications Commission Authorization and Evaluation Division 7435OaklandMills Road Columbia,MD21046 USA Date: 9192023 Ref: AttestationStatementsPart2.911(d)(5)(i)Filing FCCID: 2ASYYGS368 SiterwellElectronicsCo.,Limitedcertifiesthattheequipmentforwhichauthorizationissoughtisnot coveredequipmentprohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903of theFCCrules. Sincerely, CynthiaXia/Certificateengineer SiterwellElectronicsCo., Limited Rev 1/26/2023

(SiterwellElectronicsCo.,Limited) Federal Communications Commission Authorization and Evaluation Division 7435OaklandMills Road Columbia,MD21046 USA Date: 9192023 Ref: AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID: 2ASYYGS368 SiterwellElectronicsCo.,Limitedcertifiesthat,asofthedateofthefilingoftheapplication,theapplicant isnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofitssubsidiariesoraffiliates) asanentityproducingcoveredequipment. Sincerely, CynthiaXia/Certificateengineer SiterwellElectronicsCo., Limited Rev 1/26/2023

Siterwell Electronics Co., Limited 2023/09/20 Adding New Product (C2PC) for existing Certification Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2023-9-20 We, Company Deep Ltd hereby confirm that the family models are listed in the following table meet the Class 2 permissive changes and/or family certification conditions. The main differences shown as following. Remarks Product information Changes Conclusions 1. L1 changed from 47uH to 33uH 2. C7, C34 changed from The radio frequency 33uF to 100uF circuit part has not been 3. Add L4 120 R changed, only the power 4. Add C41, 100nF supply part has been 5. Add C42 10nF changed. Just test AC 6. Add C44 100nF Conducted Emissions and Detailed change 30-1GHz radiated information can be found in emissions. the document "Detailed Change Information"

New Adding FCC ID2ASYYGS368 Original FCC ID2ASYYGS368 Date2023-8-14 Sincerely, CynthiaXia/Certificate engineer Siterwell Electronics Co., Limited

(Siterwell Electronics Co., Limited) Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2ASYYGS368 Pursuant to Sections 0.457 and 0.459 of the Commissions Rules, we hereby request confidential treatment of information accompanying this application as outlined below:

Exhibit Type Schematics, Detailed change information File Name Schematics.pdf, Detailed change information.pdf 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. Pursuant to DA04-1705 June 15, 2004 of the Commissions public notice, we also request temporary confidential treatment of information accompanying this application as outlined below:

Short-term confidentiality requested: 180 days Exhibit Type External Photos ,Internal Photos File Name External Photos.pdf, Internal Photos.pdf Sincerely, Cynthia Xia/Certificate engineer Siterwell Electronics Co., Limited Rev 11/20/07

Siterwell Electronics Co., Limited Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: September 19, 2023 SUBJECT: FCC Application for FCC ID: 2ASYYGS368 To Whom It May Concern:

We, the undersigned, hereby authorize Tony Wei at EMTEK(NINGBO) CO., LTD. on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by EMTEK(NINGBO) CO., LTD. on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Sincerely, CynthiaXia/Certificate engineer Siterwell Electronics Co., Limited