DV8LX13002ECG, Respiration and SpO2 Transmitter

Fukuda Denshi USA, Inc. | 17725-C NE 65th Street, Redmond, WA 98052 | (800) 365-6668 | [email protected] Date: October 8, 2025 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 RE: CFR 47 §2.911 (d)(7) FCC US Agent Letter of Attestation FCC ID: DV8LX13002 Grantee FRN: 0007498769 To whom it may concern: This letter is to confirm that we have accepted the responsibility to act as US Agent on behalf of Fukuda Denshi Co Ltd (“the applicant”) for the above referenced FCC ID. We are aware of the requirements and responsibilities of the applicant’s agent for service of process as outlined in the FCC section §2.911(d)(7) and Report and Order FCC 22-84 paragraph 63. FCC US Agent Contact Person: Douglas W Blakely Company Name: Fukuda Denshi USA, Inc FRN: 0037493525 Company Address: 17725 N.E. 65TH ST., BLDG. C, REDMOND REDMOND, WA 98052 United States Email: [email protected] Sincerely yours, Douglas W Blakely Fukuda Denshi USA, Inc

FUKUDA DENSHI CO., LTD. ・Labeling Material of the Marking Label Lintec Corporation Base sheet: PETWH(A)-1310-RA4 Base adhesive: PAT1 (Strong adhesive) Laminate: PET16-1110R4A Laminate adhesive: PL Thin Ink color: Black ANSI/AAMI ES 60601-1：2005/(R)2012 and A1：2012 A2:2021 7.1.3 [Test Condition] Marking rubbed by hand, first for 15 s with a cloth rag soaked with distilled water, then for 15 s with a cloth rag soaked with ethanol 96%, and then for 15 s with a cloth rag soaked with isopropyl alcohol. [Result] Pass FUKUDA DENSHI CO., LTD. LX-1300E The size of the product is small, and it is difficult to secure a space on the product to describe the full text of the description requirement of §95.2393. Since the notation on the product is not realistic, the note of the description requirement is described in the user manual. FUKUDA DENSHI CO., LTD. LX-1300M The size of the product is small, and it is difficult to secure a space on the product to describe the full text of the description requirement of §95.2393. Since the notation on the product is not realistic, the note of the description requirement is described in the user manual.

Test Report No. 15886547S-R1 Page 1 of 55 UL Japan, Inc. Shonan EMC Lab. 1-22-3 Megumigaoka, Hiratsuka-shi, Kanagawa-ken, 259-1220 JAPAN / +81 463 50 6400 RF EXPOSURE TEST REPORT Test Report No. 15886547S-R1 Customer Fukuda Denshi Co., Ltd. Description of EUT ECG, Respiration and SpO2 Transmitter Model Number of EUT LX-1300E FCC ID DV8LX13002 Test Regulation FCC 47CFR 2.1093 Test Result Complied Issue Date November 12, 2025 Remarks - Representative Test Engineer Approved By Akihiro Oda Engineer Toyokazu Imamura Engineer CERTIFICATE 1266.03 The testing in which "Non-accreditation" is displayed is outside the accreditation scopes in UL Japan, Inc. There is no testing item of "Non-accreditation". Report Cover Page -Form-ULID-003532 (DCS:13-EM-F0429) Issue# 24.0 Test Report No. 15886547S-R1 Page 2 of 55 UL Japan, Inc. Shonan EMC Lab. 1-22-3 Megumigaoka, Hiratsuka-shi, Kanagawa-ken, 259-1220 JAPAN / +81 463 50 6400 ANNOUNCEMENT REVISION HISTORY Revision Test Report No. Date Page Revised Contents - (Original) 15886547S August 4, 2025 - - R1 15886547S-R1 November 12, 2025  P6 Added to *1) Simultaneous data refers to report No. “03 FCC RF Exposure”.  P9 Section 4.1 Date 2025.0.15 -> Date 2025.01.15  P10 Section 5.1 The worst of Spurious emissions test -> The worst of Radiated Emissions test  P12 Section 7.2 Simultaneous transmission (including Co- location) evaluation -> delete  This test report shall not be reproduced in full or partial, without the written approval of UL Japan, Inc.  The results in this report apply only to the sample tested. (Laboratory was not involved in sampling.)  This sample tested is in compliance with the limits of the above re gulation.  The test results in this test report are traceable to the national or international standards.  This test report must not be used by the customer to claim product certification, approval, or endorsement by the A2LA accreditation body.  This test report covers Radio technical requirements. It does not cover administrative issues such as Manual or non-Radio test related Requirements. (if applicable)  The all test items in this test report are conducted b y UL Japan, Inc. Shonan EMC Lab.  The opinions and the interpretations to the result of the description in this report are outside scopes where UL Japan, Inc. has been accredited.  The information provided b y the customer for this report is identified in SECTION 1.  The laboratory is not responsible for information provided by the customer which can impact the validity of the results.  For any test report referred in this report, the latest version (including any revisions) is always referred to.  If the latest version is a revision, it replaces the previous version. See the table below for revisions and versions. Test Report No. 15886547S-R1 Page 3 of 55 UL Japan, Inc. Shonan EMC Lab. 1-22-3 Megumigaoka, Hiratsuka-shi, Kanagawa-ken, 259-1220 JAPAN / +81 463 50 6400 Reference : Abbreviations (Including words undescribed in this report) A2LA The American Association for Laboratory Accreditation MRA Mutual Recognition Arrangement AC Alternating Current MU-MIMO Multi-User Multiple Input Multiple Output (Radio) AFH Adaptive Frequency Hopping N/A Not Applicable, Not Applied AM Amplitude Modulation NII National Information Infrastructure (Radio) Amp, AMP Amplifier NIST National Institute of Standards and Technology ANSI American National Standards Institute NR New Radio Ant, ANT Antenna NS Nerve Stimulation AP Access Point NSA Normalized Site Attenuation APD Absorbed Power Density NVLAP National Voluntary Laboratory Accreditation Program ASK Amplitude Shift Keying OBW Occupied Band Width Atten., ATT Attenuator OFDM Orthogonal Frequency Division Multiplexing AV Average OFDMA Orthogonal Frequency Division Multiple Access BPSK Binary Phase-Shift Keying PD Power Density BR Bluetooth Basic Rate psPD Peak spatial-average power density BT Bluetooth psPDn+ Surfac e-normal propagation-direction peak spatial-average power density BT LE Bluetooth Low Energy psPDtot+ Total propagating spatial-average peak power density BW BandWidth psPDmod+ Total peak spatial -average power density considering reactive nea r-field effects Cal Int Calibration Interval P/M Power meter CCK Complementary Code Keying PCB Printed Circuit Board CDD Cyclic Delay Diversity PER Packet Error Rate CFR Code of Federal Regulations PHY Physical Layer Ch., CH Channel PK Peak CISPR Comite International Special des Perturbations Radioelectriques PN Pseudo random Noise CW Continuous Wave PP Preamble Puncturing DBPSK Differential BPSK PRBS Pseudo-Random Bit Sequence DC Direct Current PSD Power Spectral Density D-factor Distance factor QAM Quadrature Amplitude Modulation DFS Dynamic Frequency Selection QP Quasi-Peak DQPSK Differential QPSK QPSK Quadrature Phase Shift Keying DSSS Direct Sequence Spread Spectrum RAT Radio Access Technology DUT Device Under Test RBW Resolution Band Width EDR Enhanced Data Rate RDS Radio Data System EIRP, e.i.r.p. Equivalent Isotropically Radiated Power RE Radio Equipment EMC ElectroMagnetic Compatibility RF Radio Frequency EMI ElectroMagnetic Interference RMS Root Mean Square EN European Norm RSS Radio Standards Specifications ERP, e.r.p. Effective Radiated Power RU Resource Unit ETSI European Telecommunications Standards Institute Rx Receiving EU European Union SA, S/A Spectrum Analyzer EUT Equipment Under Test SAR Specific Absorption Rate Fac. Factor SDM Space Division Multiplexing FCC Federal Communications Commission SISO Single Input Single Output (Radio) FHSS Frequency Hopping Spread Spectrum SG Signal Generator FM Frequency Modulation sPD Spatial-average power density Freq. Frequency sPDn+ Surfac e-normal propagation-direction spatial-average power density FSK Frequency Shift Keying sPDtot+ Total propagating spatial-average power density GFSK Gaussian Frequency-Shift Keying sPDmod+ Total spatial -average power density considering reactive nea r-field effects GNSS Global Navigation Satell…

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Test Report No. 15886546S-R2 Page 1 of 24 UL Jap an, Inc. Shonan EMC Lab. 1-22-3 Megumigaoka, Hiratsuka-shi, Kanagawa-ken, 259-1220 Japan / +81-463-50-6400 RADIO TEST REPORT Test Report No. 15886546S-R2 Customer Fukuda Denshi Co., Ltd. Description of EUT ECG, Respiration and SpO2 Transmitter Model Number of EUT LX-1300E FCC ID DV8LX13002 Test Regulation FCC Part 15 Subpart C Test Result Complied Issue Date December 2, 2025 Remarks - Representative Test Engineer Approved By Toshinori Yamada Engineer Toyokazu Imamura Engineer CERTIFICATE 1266.03 The testing in which "Non-accreditation" is displayed is outside the accreditation scopes in UL Japan, Inc. There is no testing item of "Non-accreditation". Rep ort Cover Page - Form-ULID-003532 (DCS:13-EM-F0429) Issue# 24.0 Test Report No. 15886546S-R2 Page 2 of 24 UL Japan, Inc. Shonan EMC Lab. 1-22-3 Megumigaoka, Hiratsuka-shi, Kanagawa-ken, 259-1220 Japan / +81-463-50-6400 ANNOUNCEMENT REVISION HISTORY Revision Test Report No. Date Page Revised Contents - (Original) 15886546S July 30, 2025 - 1 15886546S-R1 November 19, 2025 Page.5 Added “(Actual operating voltage range: DC 2.4 V to DC 3.6 V)”. Page 9 Corrected the Maximum Voltage and Minimum Voltage notations. Updated the operation mode in the table. Added the table. Page 14 to 16 Corrected the mode name. Page 19 Corrected the Test Equipment. 2 15886546S-R2 December 2, 2025 Page 6 Corrected the Test report No. in *2 )  This test report shall not be reproduced in full or partial, without the written approval of UL Japan, Inc.  The results in this report appl y only to the sample tested. (Laboratory was not involved in sampling.)  This sample tested is in compliance with the limits of the above re gulation.  The test results in this test report are traceable to the national or international standards.  This test report must not be used by the customer to claim product certification, approval, or endorsement b y the A2LA accreditation body.  This test report covers Radio technical requirements. It does not cover administrative issues such as Manual or non-Radio test related Requirements. (if applicable)  The all test items in this test report are conducted b y UL Japan, Inc. Shonan EMC Lab.  The opinions and the interpretations to the result of the description in this report are outside scopes where UL Japan, Inc. has been accredited.  The information provided b y the customer for this report is identified in SECTION 1.  The laboratory is not responsible for information provided by the customer which can impact the validit y of the results.  For any test report referred in this report, the latest version (including any revisions) is always referred to.  If the latest version is a revision, it replaces the previous version. See the table below for revisions and versions. Test Report No. 15886546S-R2 Page 3 of 24 UL Japan, Inc. Shonan EMC Lab. 1-22-3 Megumigaoka, Hiratsuka-shi, Kanagawa-ken, 259-1220 Japan / +81-463-50-6400 Reference: Abbreviations (Including words undescribed in this report) A2LA The American Association for Laboratory Accreditation ICES Interference-Causing Equipment Standard AC Alternating Current IEC International Electrotechnical Commission AFH Adaptive Frequency Hopping IEEE Institute of Electrical and Electronics En gineers AM Amplitude Modulation IF Intermediate Frequency Amp, AMP Amplifier ILAC International Laboratory Accreditation Conference ANSI American National Standards Institute ISED Innovation, Science and Economic Develo pment Canada Ant, ANT Antenna ISO International Organization for Standardization AP Access Point JAB Japan Accreditation Board ASK Amplitude Shift Keying LAN Local Area Network Atten., ATT Attenuator LIMS Laboratory Information Management S ystem AV Average MCS Modulation and Coding Scheme BPSK Binary Phase-Shift Keying MRA Mutual Recognition Arrangement BR Bluetooth Basic Rate N/A Not Applicable BT Bluetooth NIST National Institute of Standards and Technolo gy BT LE Bluetooth Low Energy NS No signal detect. BW BandWidth NSA Normalized Site Attenuation Cal Int Calibration Interval NVLAP National Voluntary Laboratory Accreditation Pro gram CCK Complementary Code Keying OBW Occupied Band Width Ch., CH Channel OFDM Orthogonal Frequency Division Multiplexing CISPR Comite International Special des Perturbations Radioelectriques P/M Power meter CW Continuous Wave PCB Printed Circuit Board DBPSK Differential BPSK PER Packet Error Rate DC Direct Current PHY Physical Layer D-factor Distance factor PK Peak DFS Dynamic Frequency Selection PN Pseudo random Noise DQPSK Differential QPSK PRBS Pseudo-Random Bit Sequence DSSS Direct Sequence Spread Spectrum PSD Power Spectral Density EDR Enhanced Data Rate QAM Quadrature Amplitude Modulation EIRP, e.i.r.p. Equivalent Isotropically Radiated Power QP Quasi-Peak EMC ElectroMagnetic Compatibility QPSK Quadri-Phase Shift Keying EMI ElectroMagnetic Interference RBW Resolution Band Width EN European Norm RDS Radio Data System ERP, e.r.p. Effective Radiated Power RE Radio Equipment EU European Union RF Radio Frequency EUT Equipment Under Test RMS Root Mean Square Fac. Factor RSS Radio Standards Specifications FCC Federal Communications Commission Rx Receiving FHSS Frequency Hopping Spread Spectrum SA, S/A Spectrum Analyzer FM Frequency Modulation SG Signal Generator Freq. Frequency SVSWR Site-Voltage Standing Wave Ratio FSK Frequency Shift Keying TR Test Receiver GFSK Gaussian Frequency-Shift Keying Tx Transmitting GNSS Global Navigation Satellite System VBW Video BandWidth GPS Global Positioning System Vert. Vertical Hori. Horizontal WLAN Wireless LAN Test Report No. 15886546S-R2 Page 4 of 24 UL Japan, Inc. Shonan EMC Lab. 1-22-3 Megumigaoka, Hiratsuka-shi, Kanagawa-ken, 259-1220 Japan / +81-463-50-6400 CONTENTS PAGE SECTION 1: Customer Information ......................................................................................... 5 SECTION 2: Equipment Under Test (EUT) .................................…

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