MG3-J1TH028Thermostat

120623-17 rev 9 Certification Application Attestation Statements Date: June 2, 2026 American Certification Body, Inc. 313 Park Avenue Suite 300 Falls Church, VA 22046 To Whom It May Concern: Statement for 47 CFR section 2.911(d)(5)(i) _Universal Electronics Inc., certifies that as of the date of the application the equipment for which authorization is sought is not “covered” equipment 1 prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, including affiliates or subsidiaries of the named companies, the applicant must include an explanation on why the equipment is not “covered” equipment. Additional Explanation: <N/A> Statement for 47 CFR section 2.911(d)(5)(ii) _Universal Electronics Inc., (“the applicant”) certifies that, as of the date of the filing of this application, the applicant ☐ - is / X - is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates – see KDB 986446 Question 5) as an entity producing “covered” equipment. Thank you, By: _Jesse Mendez_ (Signature 2 ) (Print name) Title: Staff Engineer, Electrical Company: Universal Electronics Inc., Telephone: 714 918-9701 1 ‐ The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist . 2 - Letters must be placed on appropriate letterhead.

201 E. Sandpointe Ave, 7 th Floor, Santa Ana, CA 92707 USA 05-07-2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, Maryland 21046 FCC ID: MG3-J1TH028 Subject: Attestation Statement pursuant to Part 2.911 (d)(7) Universal Electronics Inc. “applicant”, as of the date of this filing, will also serve as the U.S. agent for service of process for the above reference FCC ID as required in Part 2.911(d)(7). The applicant acknowledges that they will maintain an agent for service of process for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the agent information changes. US Agent Company Name/Applicant: Universal Electronics Inc. Contact Name: Jesse Mendez Address: 201 E. Sandjpointe Ave, 7 th Floor, Santa Ana, CA 92707 Telephone Number: 714 918-8701 E-Mail: [email protected] FRN: 0007413982 Sincerely, JESSE MENDEZ Staff Engineer, Electrical

050222-17 Authority to Act as Agent Date: September 26, 2025 American Certification Body, Inc. 313 Park Avenue Suite 300 Falls Church, VA 22046 To Whom It May Concern: ___Compatible Electronics Inc., is authorized to act on our behalf, until otherwise notified, for applications to American Certification Body, Inc. (ACB). 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. We also declare that the information provided to the FCC is true and correct to the best of our knowledge (47 CFR 2.911(d)) and we have been informed of the grantee responsibilities (47 CFR 2.909) with regard to certified equipment. Thank you, Agency Agreement Expiration Date: 2026.09.26_ By: _ Jesse Mendez (Signature 1 ) (Print name) Title: Staff Engineer, Electrical On behalf of: Universal Electronics Inc., (Company Name) Telephone: 714 918-9701 1 - Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead.

050222-17 Request for Confidentiality Date: June 2, 2026 Subject: Confidentiality Request for: _FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Pursuant to FCC 47 CFR 0.457(d) and 0.459 and/or IC RSP-100, Section 12.4, the applicant requests that a part of the subject application(s) be held confidential. Type of Confidentiality Requested Exhibit ☐ Short Term ☒ Permanent Block Diagrams ☐ Short Term --------------------------- External Photos ☐ Short Term ☐ Permanent * 1 Internal Photos ☐ Short Term ☒ Permanent Operation Description/Theory of Operation ☐ Short Term ☒ Permanent Parts List & Placement/BOM ☐ Short Term ☒ Permanent Tune-Up Procedure ☐ Short Term ☒ Permanent Schematics ☐ Short Term --------------------------- Test Setup Photos ☒ Short Term ☐ Permanent * 1 User’s Manual Universal Electronics Inc.. 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. Short-Term Confidentiality for FCC Applications: The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of 180 2 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 ACB in the event information regarding the product or the product is made available to the public before the requested period has expired. ACB will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04-1705. Short Term Confidentiality for Industry Canada Applications: Starting May 2022, ISED will recognize short term confidentiality on certain exhibits until the intended date of marketing. The applicant requests the exhibits selected above as short term confidential be withheld from public view until 180 days from the date of the ISED certificate Sincerely, By: __ Jesse Mendez (Signature/Title 3 ) (Print name) 1 - The asterisked items (*) require further information to be provided to ACB before permanent confidentiality will be extended to these exhibits. Please refer to FCC KDB 726920 and the specific Document link for D01 found at: https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=41731 and review section II, 3) regarding specific information that must accompany these requests. 2 - Please refer to https://acbcert.com/documents/misc-docs/Memo-Short-Term-Vs-Standard-Confidentiality.pdf for complete details. 3 - Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead.

Front View of the EUT Back View of the EUT Top View of the EUT Bottom View of the EUT Left View of the EUT Right View of the EUT Front View of the Mounting Device (Note Only used for testing and not part of the EUT) Back View of the Mounting Device (Note Only used for testing and not part of the EUT)

GEMSTAR TECHNOLOGY (YANGZHOU) CO.,LTD. (WHOLLY OWNED BY C.G. DEVELOPMENT LTD.) DRAWDATETITLE CHKD.DATE MATERIALSURFACE FINISHING APPD.DATE MODELDWG NOREV A1 P/N SIZE A4 SCALE 1:1 SHEET 1 OF 1 REVDESCRIPTIONDATENAME A1 NEW RELEASE 07/01/2025 Alvin Li CARRIERTSTATCCIEWF-01 J1TH028A00-00001 BRYANT TSTATBBIEWF-01 J1TH028A00-00002 ION TSTATIIIEWF-01 J1TH028A00-00003 31TH028A00-00001 31TH028A00-00002 31TH028A00-00003 PRODUCT QR LABEL CARRIER ENTRY LEVEL THERMOSTAT CG-87064 SCALE 1:4 NOTES: 1.MATERIAL: FASSON 2MIL MATT WITH POLYESTER NTC/S33/BG 50 #WIHTE (TOTAL THICKNESS 0.10mm) 2.ADHESIVE TYPE: PRESSURE SENSITIVE FASSON-S450 OR APPROVED EQUIVALENT. 3.LINE TOLERANCE ±0.20MM 4.MATERIAL COLOR:PANTONE WHITE ; INK COLOR:PURE BLACK 5.MATTE FINISH. 6.THE PRINTING POSITION DEVIATION SHOUBE BE WITHIN ±0.50MM 7.PRINTING INK MUST COMPLY WITH THE FRENCH MINERAL OIL 2025 STD 47106-0001070 MATERIAL INSPECTION BLACK PRINTING BY PD 61.00 53.00 29.00 29.00 41.00 38.50 R1.00(6X) C5 C3 S/N=WI-FI MAC ADDRESS, e.g: 40B31E5B90B2 means the device Wi-Fi MAC address is 40:B3:1E:5B:90:B2 MODEL & P/N REFER TO TABLE 1. XXXXXXX (UEI DATE CODE) FACTORY CODE LAST TWO DIGITS OF YEAR IT WAS PRODUCED. WEEK # OF YEAR PRODUCED. REVISION LEVEL OF THE LATEST ENGINEERING BOM. UEI DATE CODE e.g: Z240101 (THE RULE REFER TO SPEC00003) FACTORYUVN (UEI Vietnam) YEAR 2024 WEEK 01 BOM REVISION 01 TABLE 1: (INCLUDING BUT NOT LIMITED TO LISTED BRAND,MODEL AND P/N.) 7 6 . 5 M A X 155 LABEL LOCATION PRINTING FONT: ARIAL , 1.5MM HEIGHT QR CODE SIZE ≥ 10*10mm QR CODE FORMAT : DEVICE WI-FI MAC ADDRESS , e.g: 40B31E5B90B2 QR CODE SIZE ≥ 10*10mm QR CODE FORMAT : DEVICE MATTER ID e.g: MT:-24J0AFN00KA0648G00 EXXXXXX Room Thermostat 24Vac Class 2 Model:TSTATBBIEWF-01 S/N: XXXXXXXXXXXX P/N: J1TH028XXX-XXXXX XXXXXXX FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ EXXXXXX Room Thermostat 24Vac Class 2 FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ BRANDMODEL FG P/N UVNGTY 1234-567-8901 Dynamic code,11-digit codes,manual pairing code 1234-567-8901 is example, The digital font is CSA DIGITS. The matter logo lockup should be the width of the numeric code. EXXXXXX Room Thermostat 24Vac Class 2 Model: TSTATXXXXX-01 S/N: XXXXXXXXXXXX P/N: J1TH028XXX-XXXXX XXXXXXX FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ 1234-567-8901 HEIGHT=1.8 EXXXXXX Room Thermostat 24Vac Class 2 FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ EXXXXXX Room Thermostat 24Vac Class 2 FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ EXXXXXX Room Thermostat 24Vac Class 2 FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ 0±0.2mm 19.10mm

GEMSTAR TECHNOLOGY (YANGZHOU) CO.,LTD. (WHOLLY OWNED BY C.G. DEVELOPMENT LTD.) DRAWDATETITLE CHKD.DATE MATERIALSURFACE FINISHING APPD.DATE MODELDWG NOREV A1 P/N SIZE A4 SCALE 1:1 SHEET 1 OF 1 REVDESCRIPTIONDATENAME A1 NEW RELEASE 07/01/2025 Alvin Li CARRIERTSTATCCIEWF-01 J1TH028A00-00001 BRYANT TSTATBBIEWF-01 J1TH028A00-00002 ION TSTATIIIEWF-01 J1TH028A00-00003 31TH028A00-00001 31TH028A00-00002 31TH028A00-00003 PRODUCT QR LABEL CARRIER ENTRY LEVEL THERMOSTAT CG-87064 SCALE 1:4 NOTES: 1.MATERIAL: FASSON 2MIL MATT WITH POLYESTER NTC/S33/BG 50 #WIHTE (TOTAL THICKNESS 0.10mm) 2.ADHESIVE TYPE: PRESSURE SENSITIVE FASSON-S450 OR APPROVED EQUIVALENT. 3.LINE TOLERANCE ±0.20MM 4.MATERIAL COLOR:PANTONE WHITE ; INK COLOR:PURE BLACK 5.MATTE FINISH. 6.THE PRINTING POSITION DEVIATION SHOUBE BE WITHIN ±0.50MM 7.PRINTING INK MUST COMPLY WITH THE FRENCH MINERAL OIL 2025 STD 47106-0001070 MATERIAL INSPECTION BLACK PRINTING BY PD 61.00 53.00 29.00 29.00 41.00 38.50 R1.00(6X) C5 C3 S/N=WI-FI MAC ADDRESS, e.g: 40B31E5B90B2 means the device Wi-Fi MAC address is 40:B3:1E:5B:90:B2 MODEL & P/N REFER TO TABLE 1. XXXXXXX (UEI DATE CODE) FACTORY CODE LAST TWO DIGITS OF YEAR IT WAS PRODUCED. WEEK # OF YEAR PRODUCED. REVISION LEVEL OF THE LATEST ENGINEERING BOM. UEI DATE CODE e.g: Z240101 (THE RULE REFER TO SPEC00003) FACTORYUVN (UEI Vietnam) YEAR 2024 WEEK 01 BOM REVISION 01 TABLE 1: (INCLUDING BUT NOT LIMITED TO LISTED BRAND,MODEL AND P/N.) 7 6 . 5 M A X 155 LABEL LOCATION PRINTING FONT: ARIAL , 1.5MM HEIGHT QR CODE SIZE ≥ 10*10mm QR CODE FORMAT : DEVICE WI-FI MAC ADDRESS , e.g: 40B31E5B90B2 QR CODE SIZE ≥ 10*10mm QR CODE FORMAT : DEVICE MATTER ID e.g: MT:-24J0AFN00KA0648G00 EXXXXXX Room Thermostat 24Vac Class 2 Model:TSTATCCIEWF-01 S/N: XXXXXXXXXXXX P/N: J1TH028XXX-XXXXX XXXXXXX FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ EXXXXXX Room Thermostat 24Vac Class 2 FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ BRANDMODEL FG P/N UVNGTY 1234-567-8901 Dynamic code,11-digit codes,manual pairing code 1234-567-8901 is example, The digital font is CSA DIGITS. The matter logo lockup should be the width of the numeric code. EXXXXXX Room Thermostat 24Vac Class 2 Model: TSTATXXXXX-01 S/N: XXXXXXXXXXXX P/N: J1TH028XXX-XXXXX XXXXXXX FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ 1234-567-8901 HEIGHT=1.8 EXXXXXX Room Thermostat 24Vac Class 2 FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ EXXXXXX Room Thermostat 24Vac Class 2 FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ EXXXXXX Room Thermostat 24Vac Class 2 FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ 0±0.2mm 19.10mm

GEMSTAR TECHNOLOGY (YANGZHOU) CO.,LTD. (WHOLLY OWNED BY C.G. DEVELOPMENT LTD.) DRAWDATETITLE CHKD.DATE MATERIALSURFACE FINISHING APPD.DATE MODELDWG NOREV A1 P/N SIZE A4 SCALE 1:1 SHEET 1 OF 1 REVDESCRIPTIONDATENAME A1 NEW RELEASE 07/01/2025 Alvin Li CARRIERTSTATCCIEWF-01 J1TH028A00-00001 BRYANT TSTATBBIEWF-01 J1TH028A00-00002 ION TSTATIIIEWF-01 J1TH028A00-00003 31TH028A00-00001 31TH028A00-00002 31TH028A00-00003 PRODUCT QR LABEL CARRIER ENTRY LEVEL THERMOSTAT CG-87064 SCALE 1:4 NOTES: 1.MATERIAL: FASSON 2MIL MATT WITH POLYESTER NTC/S33/BG 50 #WIHTE (TOTAL THICKNESS 0.10mm) 2.ADHESIVE TYPE: PRESSURE SENSITIVE FASSON-S450 OR APPROVED EQUIVALENT. 3.LINE TOLERANCE ±0.20MM 4.MATERIAL COLOR:PANTONE WHITE ; INK COLOR:PURE BLACK 5.MATTE FINISH. 6.THE PRINTING POSITION DEVIATION SHOUBE BE WITHIN ±0.50MM 7.PRINTING INK MUST COMPLY WITH THE FRENCH MINERAL OIL 2025 STD 47106-0001070 MATERIAL INSPECTION BLACK PRINTING BY PD 61.00 53.00 29.00 29.00 41.00 38.50 R1.00(6X) C5 C3 S/N=WI-FI MAC ADDRESS, e.g: 40B31E5B90B2 means the device Wi-Fi MAC address is 40:B3:1E:5B:90:B2 MODEL & P/N REFER TO TABLE 1. XXXXXXX (UEI DATE CODE) FACTORY CODE LAST TWO DIGITS OF YEAR IT WAS PRODUCED. WEEK # OF YEAR PRODUCED. REVISION LEVEL OF THE LATEST ENGINEERING BOM. UEI DATE CODE e.g: Z240101 (THE RULE REFER TO SPEC00003) FACTORYUVN (UEI Vietnam) YEAR 2024 WEEK 01 BOM REVISION 01 TABLE 1: (INCLUDING BUT NOT LIMITED TO LISTED BRAND,MODEL AND P/N.) 7 6 . 5 M A X 155 LABEL LOCATION PRINTING FONT: ARIAL , 1.5MM HEIGHT QR CODE SIZE ≥ 10*10mm QR CODE FORMAT : DEVICE WI-FI MAC ADDRESS , e.g: 40B31E5B90B2 QR CODE SIZE ≥ 10*10mm QR CODE FORMAT : DEVICE MATTER ID e.g: MT:-24J0AFN00KA0648G00 EXXXXXX Room Thermostat 24Vac Class 2 Model:TSTATIIIEWF-01 S/N: XXXXXXXXXXXX P/N: J1TH028XXX-XXXXX XXXXXXX FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ EXXXXXX Room Thermostat 24Vac Class 2 FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ BRANDMODEL FG P/N UVNGTY 1234-567-8901 Dynamic code,11-digit codes,manual pairing code 1234-567-8901 is example, The digital font is CSA DIGITS. The matter logo lockup should be the width of the numeric code. EXXXXXX Room Thermostat 24Vac Class 2 Model: TSTATXXXXX-01 S/N: XXXXXXXXXXXX P/N: J1TH028XXX-XXXXX XXXXXXX FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ 1234-567-8901 HEIGHT=1.8 EXXXXXX Room Thermostat 24Vac Class 2 FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ EXXXXXX Room Thermostat 24Vac Class 2 FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ EXXXXXX Room Thermostat 24Vac Class 2 FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 Made in China Designed in USA Smart Home Mobile Onboarding Pat. https://www.corporate.carrier.com/patents/ 0±0.2mm 19.10mm

Inside View of the EUT Top View of the PCB Top View of the PCB – Close up #1 Top View of the PCB – Close up #2 Top View of the PCB – Close up #3 Top View of the PCB – Close up #4 Top View of the PCB – Close up #5 Bottom View of the PCB Bottom View of the PCB – Close up #1 Bottom View of the PCB – Close up #2 Bottom View of the PCB – Close up #3 Bottom View of the PCB – Close up #4 PCB Trace Antenna and Tx Circuit PCB Trace Antenna Tx Circuit

= where:S = transmitter operating variables: must be blank if dB values are entered P = = 23.87 (dBm) - or - (mW) 7G = = 1.9 (dBi) - or - (numeric gain) R = = (cm) ( PG)/( 4*R 2 * π ) = (mW/cm 2 ) 243.7810821.5488220 (mw)(gain)(cm) ()/(4 **π3) = (mW/cm 2 ) ()/() = (mW/cm 2 ) 0.075116 S S S 377.5721909 ) 400 (4* power input to the antenna --------------------------------->> gain of the antenna - worst case -------------------------->> distance to the center of the radiation of the antenna -->> 3.1 377.5721909 Note: The power input to the antenna is the maximum target level plus a 1.0 dB tune up tolerance 0.0751156 < 1.0 (mW/cm 2 ) S 5026.548246 POWER DENSITY ESTIMATIONS BASED ON POWER OUTPUT, ANTENNA GAIN, AND DISTANCE FROM ANTENNA maximum power density (mW/cm 2 ) (mW/cm 2 ) ) = 2 * π / 20 ( ( P G ) / ( 4 R 2 π )

Report Number: D50815P1 Page 1 of 25 20621 PASCAL WAY, LAKE FOREST, CALIFORNIA, 92630 • PH: (949) 587-0400 FX: (949) 587-0476 FCC PART 15 SUBPART B & SUBPART C SECTION 15.247 RSS GEN, RSS 247 TEST REPORT For CARRIER SMART THERMOSTAT WITH INTELISENSE MODEL: TSTATCCIEWF-01 FCC ID: MG3-J1TH028 HVIN: TSTATCCIEWF-01 IC: 2575A-J1TH028 Prepared for UNVERSAL ELECTRONICS, INC. 15147 N. SCOTTSDALE ROAD, SUITE H300 SCOTTSDALE, AZ 85254 Prepared by: _____________________ ANDREW NIMEH Approved by: ____________________ VIDYA METKAR COMPATIBLE ELECTRONICS, INC. 20621 PASCAL WAY LAKE FOREST, CA 92630 (949) 587-0400 DATE: MAY 28, 2026 REPORT APPENDICES TOTAL BODY A B C D E PAGES 25 2 2 2 17 214 262 This report shall not be reproduced, except in full, without the written approval of Compatible Electronics. Report Number: D50815P1 Page 2 of 25 20621 PASCAL WAY, LAKE FOREST, CALIFORNIA, 92630 • PH: (949) 587-0400 FX: (949) 587-0476 TABLE OF CONTENTS Section / Title PAGE GENERAL REPORT SUMMARY 4 SUMMARY OF TEST RESULTS 5 1. PURPOSE 6 1.1 Decision Rule & Risk 7 2. ADMINISTRATIVE DATA 8 2.1 Location of Testing 8 2.2 Traceability Statement 8 2.3 Cognizant Personnel 8 2.4 Date Test Sample was received 8 2.5 Disposition of the Test Sample 8 2.6 Abbreviations and Acronyms 8 3. APPLICABLE DOCUMENTS 9 4. DESCRIPTION OF TEST CONFIGURATION 10 4.1 Description of Test Configuration – EMI 10 5. LISTS OF EUT, ACCESSORIES AND TEST EQUIPMENT 12 5.1 EUT and Accessory List 12 5.2 EMI Test Equipment 13 5.3 Test Software 13 6. TEST SITE DESCRIPTION 14 6.1 Test Facility Description 14 6.2 EUT Mounting, Bonding and Grounding 14 6.3 Facility Environmental Characteristics 14 6.4 Measurement Uncertainty 14 7. CHARACTERISTICS OF THE TRANSMITTER 15 7.1 Channel Number and Frequencies 15 7.2 Antenna Gain 15 8. Test Procedures 16 8.1 RF Emissions 16 8.2 DTS Bandwidth 20 8.3 Maximum Peak Conducted Output Power 20 8.4 Maximum Peak Conducted Output Power – WiFi Mode 21 8.5 Emissions in Non-Restricted Bands 21 8.6 RF Band Edges 22 8.7 Spectral Density Test 23 8.8 99 % Bandwidth 23 8.9 Variation of the Input Power 24 9. TEST PROCEDURE DEVIATIONS 25 10. CONCLUSIONS 25 Report Number: D50815P1 Page 3 of 25 20621 PASCAL WAY, LAKE FOREST, CALIFORNIA, 92630 • PH: (949) 587-0400 FX: (949) 587-0476 LIST OF APPENDICES APPENDIX TITLE A Laboratory Accreditations B Modifications to the EUT C Additional Models D Diagrams, Charts and Photos • Test Setup Diagrams • Antenna and Amplifier Gain Factors • Emissions Photos E Data Sheets and FCC Compliance Information Statement LIST OF TABLES TABLE TITLE 1 Spurious Emissions Test Results LIST OF FIGURES FIGURE TITLE 1 Low Frequency Test Setup 2 Radiated Emissions 3-Meter Semi-Anechoic Test Chamber 3 High Frequency Test Volume Report Number: D50815P1 Page 4 of 25 20621 PASCAL WAY, LAKE FOREST, CALIFORNIA, 92630 • PH: (949) 587-0400 FX: (949) 587-0476 GENERAL REPORT SUMMARY This electromagnetic emission report is generated by Compatible Electronics Inc., which is an independent testing and consulting firm. The test report is based on testing performed by Compatible Electronics personnel according to the measurement procedures described in the test specifications given below and in the "Test Procedures" section of this report. The measurement data and conclusions appearing herein relate only to the sample tested and this report may not be reproduced in any form except in full, without the written permission of Compatible Electronics. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the U.S. government. Device Tested: C arrier Smart Thermostat With InteliSense Model: TSTATCCIEWF-01 FCC ID: MG3-J1TH028 IC: 2575A-J1TH028 P roduct Description: The EUT is a smart thermostat that is a custom basic thermostat. The clock oscillator is 40 MHz. Dimensions: 2.1 cm (L) x 8.8cm (W) x 12.9 cm (H). Modifications: The EUT was not modified during the testing in order to comply with the specifications. Manufacturer: Universal Electronics, Inc. 15147 N. Scottsdale Road, Suite H300 Scottsdale, AZ 85254 Test Date: August 12, 15, 18, 19, 2025, May 15, 18-2 2, 2026 Test Specifications Covered by Accreditation: Test Specifications: EMI requirements FCC CFR Title 47, Part 15 Subpart B, FCC CFR Title 47, Subpart C Sections 15.205, 15.207, 15.209 and 15.247 RSS GEN, RSS 247 Test Procedure: ANSI C63.4 & C63.10. Report Number: D50815P1 Page 5 of 25 20621 PASCAL WAY, LAKE FOREST, CALIFORNIA, 92630 • PH: (949) 587-0400 FX: (949) 587-0476 SUMMARY OF TEST RESULTS TEST DESCRIPTION RESULTS 1 Conducted RF Emissions, 150 kHz – 30 MHz Complies with the Class B limits of CFR Title 47, Part 15, Subpart B; the limits of CFR Title 47, Part 15, Subpart C section 15.207; and the limits of RSS-Gen for conducted emissions 2 Spurious Radiated RF Emissions, 30 MHz – 25 GHz The EUT complies with the Class B limits of CFR Title 47, Part 15 Subpart B; the limits of CFR Title 47, Part 15, Subpart C, section 15.209; RSS-247 and RSS-GEN 3 Fundamental and Emissions produced by the intentional radiator in non-restricted bands, 9 kHz – 25 GHz Complies with the relevant requirements of CFR Title 47, Part 15, Subpart C, section 15.247(d); RSS-247and RSS- GEN 4 Emissions produced by the intentional radiator in restricted bands, 9 kHz – 25 GHz Complies with the relevant requirements of CFR Title 47, Part 15, Subpart C, section 15.205, 15.209, section 15.247 (d); RSS-247 and RSS-GEN 5 DTS Bandwidth Complies with the relevant requirements of FCC Title 47, Part 15, Subpart C, section 15.247 (a)(2); RSS-247 6 Maximum Conducted Output Power Complies with the relevant requirements of FCC Title 47, Part 15, Subpart C, section 15.247 (b)(3); RSS-247 7 RF Conducted Antenna Test Complies with the relevant requirements of CFR Title 47, Part 15, Subpart C, section 15.247 (d); RSS-247 8 Power Spectral Density from the Intentional Radiator to the Antenna Complies with the relevant requirements of CFR Title …

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Report Number: D50815P1 Page E1 Band Edge – Conducted Measurement at 2400 MHz – BLE Mode – 1 Mbit Report Number: D50815P1 Page E2 Band Edge – Conducted Measurement at 2400 MHz – BLE Mode – 2 Mbit Report Number: D50815P1 Page E3 Band Edge – Conducted Measurement at 2400 MHz – 802.11b Mode Report Number: D50815P1 Page E4 Band Edge – Conducted Measurement at 2400 MHz – 802.11g Mode Report Number: D50815P1 Page E5 Band Edge – Conducted Measurement at 2400 MHz – 802.11n Mode – 20 MHz Report Number: D50815P1 Page E6 Band Edge – Conducted Measurement at 2400 MHz – 802.11n Mode – 40 MHz Report Number: D50815P1 Page E7 -6DB BANDWIDTH DATA SHEETS Report Number: D50815P1 Page E8 -6 dB Bandwidth – Low Channel – BLE Mode – 1 Mbit Report Number: D50815P1 Page E9 -6 dB Bandwidth – Middle Channel – BLE Mode – 1 Mbit Report Number: D50815P1 Page E10 -6 dB Bandwidth – High Channel – BLE Mode – 1 Mbit Report Number: D50815P1 Page E11 -6 dB Bandwidth – Low Channel – BLE Mode – 2 Mbit Report Number: D50815P1 Page E12 -6 dB Bandwidth – Middle Channel – BLE Mode – 2 Mbit Report Number: D50815P1 Page E13 -6 dB Bandwidth – High Channel – BLE Mode – 2 Mbit Report Number: D50815P1 Page E14 -6 dB Bandwidth – Low Channel – 802.11b Mode Report Number: D50815P1 Page E15 -6 dB Bandwidth – Middle Channel – 802.11b Mode Report Number: D50815P1 Page E16 -6 dB Bandwidth – High Channel – 802.11b Mode Report Number: D50815P1 Page E17 -6 dB Bandwidth – Low Channel – 802.11g Mode Report Number: D50815P1 Page E18 -6 dB Bandwidth – Middle Channel – 802.11g Mode Report Number: D50815P1 Page E19 -6 dB Bandwidth – High Channel – 802.11g Mode Report Number: D50815P1 Page E20 -6 dB Bandwidth – Low Channel – 802.11n Mode – 20 MHz Report Number: D50815P1 Page E21 -6 dB Bandwidth – Middle Channel – 802.11n Mode – 20 MHz Report Number: D50815P1 Page E22 -6 dB Bandwidth – High Channel – 802.11n Mode – 20 MHz Report Number: D50815P1 Page E23 -6 dB Bandwidth – Low Channel – 802.11n Mode – 40 MHz Report Number: D50815P1 Page E24 -6 dB Bandwidth – Middle Channel – 802.11n Mode – 40 MHz Report Number: D50815P1 Page E25 -6 dB Bandwidth – High Channel – 802.11n Mode – 40 MHz Report Number: D50815P1 Page E26 PEAK POWER OUTPUT DATA SHEETS Report Number: D50815P1 Page E27 PEAK RF CONDUCTED OUTPUT POWER The Carrier Smart Thermostat With InteliSense Model: TSTATCCIEWF-01 FREQUENCY (MHz) PROTOCOL DATA RATE POWER LEVEL PEAK RF CONDUCTED POWER (dBm) LIMIT (dB) MARGIN (dBm) 2402 BLE 1 Mbit 0X23 5.441 30.000 -24.559 2440 BLE 1 Mbit 0X23 5.467 30.000 -24.533 2480 BLE 1 Mbit 0X23 4.982 30.000 -25.018 2402 BLE 2 Mbit 0X23 5.518 30.000 -24.482 2440 BLE 2 Mbit 0X23 5.567 30.000 -24.433 2480 BLE 2 Mbit 0X23 5.155 30.000 -24.845 2412 802.11b 1 – CCK 102 21.778 30.000 -8.222 2437 802.11b 1 – CCK 102 22.234 30.000 -7.766 2462 802.11b 1 – CCK 102 22.192 30.000 -7.808 2412 802.11g 6 - OFDM 92 21.481 30.000 -8.519 2437 802.11g 6 - OFDM 92 22.87 30.000 -7.130 2462 802.11g 6 - OFDM 92 22.691 30.000 -7.309 2412 802.11n (20 MHz) MCS0 92 22.145 30.000 -7.855 2437 802.11n (20 MHz) MCS0 92 22.424 30.000 -7.576 2462 802.11n (20 MHz) MCS0 88 21.304 30.000 -8.696 2422 802.11n (40 MHz) MCS0 92 20.311 30.000 -9.689 2437 802.11n (40 MHz) MCS0 92 20.394 30.000 -9.606 2452 802.11n (40 MHz) MCS0 88 19.946 30.000 -10.054 Report Number: D50815P1 Page E28 RF ANTENNA CONDUCTED DATA SHEETS Report Number: D50815P1 Page E29 Report Number: D50815P1 Page E30 RF Antenna Conducted – Low Channel – BLE Mode – 1 Mbit – Reference Level Report Number: D50815P1 Page E31 RF Antenna Conducted – Low Channel – BLE Mode – 1 Mbit – 30 MHz to 2.4 GHz Report Number: D50815P1 Page E32 RF Antenna Conducted – Low Channel – BLE Mode – 1 Mbit – 2483.5 MHz to 10 GHz Report Number: D50815P1 Page E33 RF Antenna Conducted – Low Channel – BLE Mode – 1 Mbit – 10 GHz to 25 GHz Report Number: D50815P1 Page E34 RF Antenna Conducted – Middle Channel – BLE Mode – 1 Mbit – Reference Level Report Number: D50815P1 Page E35 RF Antenna Conducted – Middle Channel – BLE Mode – 1 Mbit – 30 MHz to 2.4 GHz Report Number: D50815P1 Page E36 RF Antenna Conducted – Middle Channel – BLE Mode – 1 Mbit – 2485.3 MHz to 10 GHz Report Number: D50815P1 Page E37 RF Antenna Conducted – Middle Channel – BLE Mode – 1 Mbit – 10 GHz to 25 GHz Report Number: D50815P1 Page E38 RF Antenna Conducted – High Channel – BLE Mode – 1 Mbit – Reference Level Report Number: D50815P1 Page E39 RF Antenna Conducted – High Channel – BLE Mode – 1 Mbit – 30 MHz to 2.4 GHz Report Number: D50815P1 Page E40 RF Antenna Conducted – High Channel – BLE Mode – 1 Mbit – 2483.5 MHz to 10 GHz Report Number: D50815P1 Page E41 RF Antenna Conducted – High Channel – BLE Mode – 1 Mbit – 10 GHz to 25 GHz Report Number: D50815P1 Page E42 RF Antenna Conducted – Low Channel – BLE Mode – 2 Mbit – Reference Level Report Number: D50815P1 Page E43 RF Antenna Conducted – Low Channel – BLE Mode – 2 Mbit – 30 MHz to 2.4 GHz Report Number: D50815P1 Page E44 RF Antenna Conducted – Low Channel – BLE Mode – 2 Mbit – 2483.5 MHz to 10 GHz Report Number: D50815P1 Page E45 RF Antenna Conducted – Low Channel – BLE Mode – 2 Mbit – 10 GHz to 25 GHz Report Number: D50815P1 Page E46 RF Antenna Conducted – Middle Channel – BLE Mode – 2 Mbit – Reference Level Report Number: D50815P1 Page E47 RF Antenna Conducted – Middle Channel – BLE Mode – 2 Mbit – 30 MHz to 2.4 GHz Report Number: D50815P1 Page E48 RF Antenna Conducted – Middle Channel – BLE Mode – 2 Mbit – 2483.5 MHz to 10 GHz Report Number: D50815P1 Page E49 RF Antenna Conducted – Middle Channel – BLE Mode – 2 Mbit – 10 GHz to 25 GHz Report Number: D50…

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