2BO3L-TMST2A6WLG Temperature Sensor

Rev 1/26/2023 LG Electronics Inc. 222 LG-ro, Jinwi-myeon, Pyeongtaek-si, Gyeonggi-do, 17709, South Korea Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Jul. 02 2026 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BO3L-TMST2A6W LG Electronics Inc. (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. LG Electronics Inc. (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, LG Electronics Inc. Yongdeok Kwon (Applicant signature) Rev 1/26/2023 LG Electronics Inc. 222 LG-ro, Jinwi-myeon, Pyeongtaek-si, Gyeonggi-do, 17709, South Korea Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Jul. 02 2026 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BO3L-TMST2A6W LG Electronics Inc. (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List ( as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, LG Electronics Inc. Yongdeok Kwon (Applicant signature)

Rev 1/26/2023 LG Electronics Inc. 222 LG-ro, Jinwi-myeon, Pyeongtaek-si, Gyeonggi-do, 17709, South Korea Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Jul, 03, 2026 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID or Grantee Code: 2BO3L-TMST2A6W Applicant FRN: 0036977056 LG Electronics Inc. (“the applicant”) certifies that, as of the date of the filing of the application, LG ELECTRONICS USA INC. is our designated U.S. agent for service of process for the above referenced FCC ID. LG Electronics Inc. accepts to maintain an agent 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. LG ELECTRONICS USA INC. accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Name: LG ELECTRONICS USA INC. U.S. Agent FRN: 0023476120 Address: 111 Sylvan Avenue North Building, Englewood Cliffs New Jersey United States 07632 Contact Person: Heejae Cho Tel.: (201) 266-2215 Email: [email protected] Sincerely, LG Electronics Inc. LG ELECTRONICS USA INC. Yongdeok Kwon Heejae Cho [Insert Applicant signature] [U.S. Agent signature]

LG Electronics Inc. 222 LG-ro, Jinwi-myeon, Pyeongtaek-si, Gyeonggi-do, 17709, South Korea Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2BO3L- TMST2A6W Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name - Block Diagram - Schematics - Operational Description - Tune-up Procedure - 06. Block Diagram.pdf - 07. Schematics.pdf - 10. Operation Description.pdf - 12. Tune-up procedure.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 Commission’s public notice, we also request temporary confidential treatment of information accompanying this application as outlined below for a period of 180 days Exhibit Type File Name - RF Test Setup photos - External Photos - Internal Photos - User manual - 03. Test Setup Photos.pdf - 04. External Photos.pdf - 05. Internal Photos.pdf - 08. User Manual.pdf (Signature) Yongdeok Kwon / Professional +82-31-8066-5538 222 LG-ro, Jinwi-myeon, Pyeongtaek-si, Gyeonggi-do, 17709, South Korea

LG Electronics Inc. 222 LG-ro, Jinwi-myeon, Pyeongtaek-si, Gyeonggi-do, 17709, South Korea Date: Jul, 02, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA SUBJECT: Application for Certification for FCC ID: 2BO3L-TMST2A6W To Whom It May Concern: We, the undersigned, hereby authorize SangHoon, Yu at Lab-T, Inc. on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by SangHoon, Yu at Lab-T, Inc. 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. Regards, (Signature) Yongdeok Kwon / Professional +82-31-8066-5538 222 LG-ro, Jinwi-myeon, Pyeongtaek-si, Gyeonggi-do, 17709, South Korea

Copyright ⓒ 2026. Lab-T, Inc. Label Information 제품 사양 인쇄 내용 PRODUCT NAME: LG Temperature Sensor, MODEL NO.: TMST2A6W, INPUT: CR2477 BATTERY 3V, FCC ID: 2BO3L-TMST2A6W, IC: 2703N-TMST2A6W, CAN ICES (B) / NMB (B), MANUFACTURER: LG Electronics Inc., FACTORY: HYUNDAI HT GLOBAL COMPANY LIMITED, MADE IN VIETNAM, MANUFACTURED: XX/XXXX, S/N : XXXXXXXXXXXXX LG Temperature Sensor 제품명 대소문자 표기 UL Logo Size: 4.3 mm (Circle Diameter) Coin Battery Warning Symbol Height: 9.1 mm Matter QR Code Size : 7x7mm

1. FCC Regulation 2. RF Exposure Compliance Issue RF EXPOSUREFCC ID : 2BO3L-TMST2A6W f=frequency in MHz, *= plane-wave equivalent power density MPE (Maximum Permissive Exposure) Prediction Predication of MPE limit at a given distance: Equation from page 18 of OET Bulletin 65, Edition 97-01 S = power density [mW/cm 2 ] P = Power input to antenna [mW] G = Power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna [cm] The information should be included in the user’s manual: This appliance and its antenna must not be co-located or operation in conjunction with any other antenna or transmitter. A minimum separation distance of 20 cm must be maintained between the antenna and the person for this appliance to satisfy the RF exposure requirements. 300 ~ 1 500//f/1 50030 1 500 ~ 15 000//130 Power Density [mW/cm 2 ] Averaging Time [minute] 1.34 ~ 30824/f2.19/f*(180/f2)30 30 ~ 30027.50.0730.230 According to §15.247(i) systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy levels in excess of the Commission's guidelines. See § 1.1307(b)(1) of this Chapter. Limits for Maximum Permissive Exposure: RF exposure is calculated. Limits for General Population / Uncontrolled Exposure 0.3 ~ 1.346141.63*(100)30 Frequency Range Electric Field Strength [V/m] Magnetic Field Strength [A/m] ( ) S PG R R PG S   4 4 2 =  = Copyright ⓒ 2026. Lab-T, Inc. Page :1 / 3 ( (Limit :1.00) R : Distance to the center of the radiation of the antenna20cm ) EIRP : Equivalent Isotropic Radiated Power (mW) - NOTE P : Max tuneup Power (dBm) G : Maximum Peak Antenna Gain (dBi) Power Density at the specific separation - NOTE- S dBi 11.40dBm =13.80mW = 11.00dBm+ mW/cm 2 = 0.002 746 0.40 - EIRP=P + G dBm) = Minimum :9.00 = EIRP / (4 X R 2 π) = S : Maximum Power Density (mW/cm 2 ) - Maximum Output Power for the Calculation :11.00 dBm Maximum :11.00 dBm The EUT will only be used with a separation of 20 centimeters or greater between the antenna and the body of the The MPE Calculations for this exposure is shown below. dBi (& - Maximum Peak Antenna Gain :0.40 13.80/( 4 X 20^2 X π ) 1.00 dB- Target Power & Tolerance :10.00 dBm&± - Measured RF Maximum Output Power :9.73 dBm MPE Calculations : Bluetooth LE - Frequency Range :2402 MHz~2480 MHz Copyright ⓒ 2026. Lab-T, Inc. Page :2 / 3 ( G : Maximum Peak Antenna Gain (dBi) =13.80mW = EIRP : Equivalent Isotropic Radiated Power (mW) R : Distance to the center of the radiation of the antenna20cm ) 13.80/( 4 X 20^2 X π ) Power Density at the specific separation - NOTE = S : Maximum Power Density (mW/cm 2 ) P : Max tuneup Power (dBm) =11.40dBm (Limit :1.00)= 0.002 746 mW/cm 2 11.00dBm+0.40 - S= EIRP / (4 X R 2 π) dBi - Maximum Output Power for the Calculation :11.00 dBm The EUT will only be used with a separation of 20 centimeters or greater between the antenna and the body of the The MPE Calculations for this exposure is shown below. - EIRP=P + G- NOTE Minimum :9.00 dBm) - Maximum Peak Antenna Gain :0.40dBi dB (Maximum :11.00 dBm& - Target Power & Tolerance :10.00 dBm&±1.00 MPE Calculations : Thread - Frequency Range :2405 MHz~2480 MHz - Measured RF Maximum Output Power :10.41 dBm Copyright ⓒ 2026. Lab-T, Inc. Page :3 / 3

BLE Antenna Specification 2026-06-12 ModelThermostat ApplicationRemote TH Sensor 2 ©HYUNDAI HT CO.,LTD.CONFIDENTIAL 1. Mechanical specification •Outline•Material 3 ©HYUNDAI HT CO.,LTD.CONFIDENTIAL 2. Test Result •Test Result 2D Data 3D Data •Manufacture information MakerKyocera Location KYOCERA AVX Components –Gunpo/Korea 102-604, 166 Gosan-ro, Gunpo-si, Gyeonggi-do Korea Manager Du-YounLee / [email protected]/ 010-2510-9365 (RF) Hyeon Lee / [email protected]/ 010-7129-2379 (machine) Antenna Pattern & Gain Report Model Name VerHorTotalVerHorTotal -7.9 dBi-9.4 dBi-5.6 dBi-1.0 dBi-2.2 dBi0.0 dBi############49.4 % -7.5 dBi-9.0 dBi-5.2 dBi-0.5 dBi-2.0 dBi0.4 dBi############50.2 % -7.6 dBi-9.3 dBi-5.3 dBi-0.6 dBi-2.3 dBi0.2 dBi############50.6 % -7.7 dBi-9.4 dBi-5.5 dBi-0.9 dBi-2.5 dBi-0.1 dBi############50.5 % -8.0 dBi-9.6 dBi-5.7 dBi-1.4 dBi-2.7 dBi-0.5 dBi############50.3 % -8.1 dBi-9.5 dBi-5.8 dBi-1.7 dBi-2.8 dBi-0.6 dBi############50.1 % 3.5 dBi3.5 dBi50.0 % 3.5 dBi3.5 dBi50.0 % 3.5 dBi3.5 dBi50.0 % 3.5 dBi3.5 dBi50.0 % 3.5 dBi3.5 dBi50.0 % 3.5 dBi3.5 dBi50.0 % 3.5 dBi3.5 dBi50.0 % 3.5 dBi3.5 dBi50.0 % 3.5 dBi3.5 dBi50.0 % 3.5 dBi3.5 dBi50.0 % 3.5 dBi3.5 dBi50.0 % 3.5 dBi3.5 dBi50.0 % UHAGLHAGUHAG % Theta90/Pie905.52 dB Frequency Efficiency DirectivityMax Position 2,400,000,000Hz 2,500,000,000Hz Manufacturer Tester Name Test Date IF BW Port Power Meas Step 2,420,000,000Hz 30.5 % 29.4 % 28.4 % 26.8 % 26.6 % 2,440,000,000Hz 2,460,000,000Hz 2,480,000,000Hz 5.59 dB 5.57 dB 5.40 dB 5.26 dB 5.19 dBTheta90/Pie90 Theta90/Pie90 Theta90/Pie90 Theta90/Pie90 Theta90/Pie90 Company Name ActiveSolution 2026-05-11 13:53 1000 Hz 0.00 dBm 15 ` Filename_15 Average GainMax Gain 27.7 % Photo -20.0 dBi -15.0 dBi -10.0 dBi -5.0 dBi 0.0 dBi 5.0 dBi 10.0 dBi 123456789101112131415161718192021222324 Ver. -7.9-7.5-7.6-7.7-8.0-8.1 Hor. -9.4-9.0-9.3-9.4-9.6-9.5 Total -5.6-5.2-5.3-5.5-5.7-5.8 Manufacturer Model Name Tester Name Test Date IF BW Port Power 090Sum090Sum090Sum 2,400,000,000Hz -5.7 / 154-1.67 / 124-1.40 / 124-10.80-8.27-6.3420 Deg.43 Deg.53 Deg.4.94 dB 2,420,000,000Hz -5.4 / 154-1.23 / 124-1.01 / 124-11.00-7.85-6.1320 Deg.43 Deg.52 Deg.5.12 dB 2,440,000,000Hz -5.81 / 154-1.33 / 124-1.14 / 124-11.50-7.98-6.4021 Deg.42 Deg.51 Deg.5.26 dB 2,460,000,000Hz -6.56 / 156-1.48 / 126-1.31 / 126-11.80-8.20-6.6522 Deg.42 Deg.48 Deg.5.34 dB 2,480,000,000Hz -7.34 / 156-1.86 / 126-1.68 / 126-11.90-8.67-7.0123 Deg.42 Deg.46 Deg.5.33 dB 2,500,000,000Hz -7.51 / 4-1.94 / 126-1.76 / 126-11.80-8.78-7.0352 Deg.42 Deg.46 Deg.5.27 dB Directivity Antenna Pattern & Gain Report Maximum GainAverage Gain Frequency 3dB Beam Width Elevation0 Company Name Filename_2 ActiveSolution 2026-05-13 9:08 1000 Hz 0 dBm Photo 90 ## ## -50.0 -40.0 -30.0 -20.0 -10.0 0.0 10.0 20.0 0 30 60 90 120 150 180 210 240 270 300 330 Total (Ver+Hor) 2400000000 2420000000 2440000000 2460000000 2480000000 2500000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ## ## -50.0 -40.0 -30.0 -20.0 -10.0 0.0 10.0 20.0 0 30 60 90 120 150 180 210 240 270 300 330 Vertical Plane 2400000000 2420000000 2440000000 2460000000 2480000000 2500000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ## ## ## -50.0 -40.0 -30.0 -20.0 -10.0 0.0 10.0 20.0 0 30 60 90 120 150 180 210 240 270 300 330 Horizontal Plane 2400000000 2420000000 2440000000 2460000000 2480000000 2500000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

REPORT No.:TRRFCC26-0008 Total 62 pages TRF-R-003(01) Page: 2 / 62 Copyright ⓒ 2026. Lab-T, Inc. a TÜ V Rheinland Company a TÜ V Rheinland Company CONTENTS 1. Revision history ................................................................................................................................................. 3 2. Information .......................................................................................................................................................... 4 2.1 Applicant Information (FCC) ...................................................................................................................................................... 4 2.2 Applicant Information (IC) ........................................................................................................................................................... 4 2.3 Test Laboratory information ....................................................................................................................................................... 5 2.4 Test Location .................................................................................................................................................................................... 5 3. Information About Test Equipment ................................................................................................................. 6 3.1 Equipment Information ................................................................................................................................................................ 6 3.2 Antenna Information...................................................................................................................................................................... 6 3.3 Test Frequency ............................................................................................................................................................................... 6 3.4 Tested Companion Device Information ................................................................................................................................. 6 3.5 Operating conditions for the EUT............................................................................................................................................ 7 4. Test Report .......................................................................................................................................................... 8 4.1 Summary ........................................................................................................................................................................................... 8 4.2 Measurement Uncertainty .......................................................................................................................................................... 8 4.3 Transmitter Requirements ......................................................................................................................................................... 9 4.3.1 Antenna Requirement ......................................................................................................................................................... 9 4.3.2 Maximum Peak Output Power ......................................................................................................................................10 4.3.3 Peak Power Spectral Density .........................................................................................................................................12 4.3.4 6 dB Bandwidth(DTS Bandwidth).................................................................................................................................19 4.3.5 Spurious Emission, Band Edge, and Restricted bands ......................................................................................30 4.3.6 Conducted Emission ..........................................................................................................................................................60 APPENDIX I ............................................................................................................................................................ 61 REPORT No.:TRRFCC26-0008 Total 62 pages TRF-R-003(01) Page: 3 / 62 Copyright ⓒ 2026. Lab-T, Inc. a TÜ V Rheinland Company a TÜ V Rheinland Company 1. Revision history Test Report No. Date Description TRRFCC26-0008 2026-07-06 Initial issue REPORT No.:TRRFCC26-0008 Total 62 pages TRF-R-003(01) Page: 4 / 62 Copyright ⓒ 2026. Lab-T, Inc. a TÜ V Rheinland Company a TÜ V Rheinland Company 2. Information 2.1 Applicant Information (FCC) Applicant name LG Electronics Inc. Address 222 LG-ro, Jinwi-myeon, Pyeongtaek-si Gyeonggi-do 17709, South Korea Telephone No. +82-31-8066-5538 Person in charge Yongdeok Kwon / [email protected] Manufacturer LG Electronics Inc. Address 170, Seongsanpaechong-ro, Seongsan-gu, Changwon-si Gyeongsangnam-do 51533, Korea (Republic Of) Factory HYUNDAI HT GLOBAL COMPANY LIMITED Address Lot M, Binh Xuyen Industrial Zone, Binh Nguyen Commune Phu Tho Province, Vietnam 2.2 Applicant Information (IC) Applicant name LG Electronics Inc. Address 170, Seongsanpaechong-ro, Seongsan-gu, Changwon-si Gyeongsangnam-do 51533, Korea (Republic Of) Telephone No. +82-10-7677-9047 Person in charge Hoseong Jang / [email protected] Manufacturer LG Electronics Inc. Address 170, Seongsanpaechong-ro, Seongsan-gu, Changwon-si Gyeongsangnam-do 51533, Korea (Republic Of) Factory HYUNDAI HT GLOBAL COMPANY LIMITED Address Lot M, Binh Xuyen Industrial Zone, Binh Nguyen Commune Phu Tho Province, Vietnam REPORT No.:TRRFCC26-0008 Total 62 pages TRF-R-003(01) Page: 5 / 62 Copyright ⓒ 2026. Lab-T, Inc. a TÜ V Rheinland Company a TÜ V Rheinland Company 2.3 Test Laboratory information Corporate name Lab-T, Inc. Representative Duke (Jongyoung) Kim Address 2182-42 Baegok-daero, Mohyeon-eup, Cheoin-gu, Yongin-si, Gye…

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