FCC ID: 2AW23-L22G00 Microwave sensor

TCB Authority to Act as Agent Number:

Revision:

Effective date: Oct 8, 2021 MS-0045317 0 Authority to Act as Agent Date: 28 Aug., 2023 TUV Rheinland of North America, Inc. 1279 Quarry Lane., Suite. A Pleasanton, CA 94566 To Whom It May Concern:

I appoint TUV Rheinland (Shenzhen) Co., Ltd. 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 FCC or Industry Canadas 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, as specified by TUV Rheinland Group, still resides with Xiamen R&T Plumbing Technology Co., Ltd. /

No.18, HouXiang Road, HaiCang District, Xiamen, 361028, China For TCB applications, We certify that we are not subject to denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Further, no party, as defined in 47 CFR 1.2002 (b), to the application is subject to denial of federal benefits, that includes FCC benefits. Thank you, Agency Agreement Date:

12 Months Agreement is valid for 12 months from the above date. By:

(Signature) Hongwei Wang

(Print name)

+8605926539772

(Telephone) Manager

(Title) On behalf of:

Xiamen R&T Plumbing Technology Co., Ltd.

(Company Name) Page 1 of 1

ANT GAIN INFO. Xiamen R&T Plumbing Technology Co., Ltd. No.18, HouXiang Road, HaiCang District, Xiamen, 361028, China HLR22-RVS-B1-35-D(I) ANT gain: 12dBi

Xiamen R&T Plumbing Technology Co., Ltd. Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: 28-08-2023 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2AW23-L22G00 Xiamen R&T Plumbing Technology Co., Ltd. (the applicant) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List, established pursuant to 1.50002 of reference chapter, as an entity producing covered communication equipment. The equipment for which authorization is sought is not covered telecommunications equipment and video surveillance equipment produced by entities identified on the Commissions Covered List that prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely yours, Applicant Signature Printed Name: Hongwei Wang Title: Manager Address: No.18, HouXiang Road, HaiCang District, Xiamen, 361028, China Tel.: +8605926539772 Email: et038@esmart-toilet.com

TCB FCC Request for Confidentiality Letter Number: MS-0044715 Revision:

1 Effective date: Sep 12, 2022 Author:

Owner:

William Graff William Graff Date: 28-08-2023 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Confidentiality Request for FCC ID: 2AW23-L22G00 Pursuant to FCC 47 CRF 0.457(d), the applicant requests that a part of the subject FCC application be held confidential. Type of Confidentiality Requested Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Permanent n/a Permanent Permanent Permanent Permanent Permanent Permanent Permanent Exhibit Block Diagrams External Photo Internal Photos ***

Operation Description/Theory of Operation Schematics Test Setup***

Tune-Up Procedure Users Manual***

Part List/ Antenna Construction Xiamen R&T Plumbing Technology Co., Ltd. has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Permanent Confidentiality:

The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public.

(*** Exceptional case for Permanent Confidentiality for these Exhibits by PAG only) Short-Term Confidentiality:

The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of specify number of days not to exceed 180 days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Applicant is also aware that they are responsible to notify TUV Rheinland in the event information regarding the product or the product is made available to the public. TUV Rheinland will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04-1705. Sincerely, By:

_______________________________________________ Hongwei Wang / Manager

(Signature/Title)

(Print name) Tel: +8605926539772 Email: et038@esmart-toilet.com MS-0044715 Page 1 of 1 Revision 1

Cate: 14-09-2023 Page Oakland Mls Road, c olumbia, MD 24 q 46, 1 hi 5 A Address:18357 Colima Road Ste 585 Rowla: nd Hesghts Cali fomia.St748 United States of gory