2BAK8-KOROT-V2BLOOD PRESSURE MONITOR

1 V2 Doctor User’s Manual Revision History Revision Number Date Revision Contents 0 2023.03.20 Initial Release. 1 1 Please note the important information below before reading this manual. Warning Failure to observe these precautions can result in personal injury or device damage. Caution Failure to comply with safety precautions can damage the device. NOTE Additional Information. Contact Information For any problems with V2 Doctor or any clinical questions, please contact us at: KOROT Co., Ltd. (HEAD OFFICE) 5F, 54, 2-gil, Nonhyun-ro, Gangnam-gu, Seoul 06313 KOREA TEL: +82-70-4016-6720 FAX: +82-2-6952-8987 Website: www.korot.com E-mail: [email protected] Reproduction, adaptation, or translation of this manual is prohibited without prior written consent from KOROT Co., Ltd. under the copyright laws. This manual may be printed incorrectly and subject to change without notice. KOROT Co., Ltd. shall not be liable for any errors, incidental, or consequential damages that occurred by not complying with the content of the User's Manual. Visit our website (www.korot.com) to view and download additional information about the V2 Doctor. KOROT Co., Ltd. reserves the right to modify the appearance, specifications, etc. of this product to improve its quality, without prior notice. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. - Consult the dealer or an experienced radio/TV technician for help. RF Exposure: 7KLVHTXLSPHment complies with FCC radiation exposure limits set forth for an uncontrolled environment.is equipm ent should be installed and operated with minimum 20 cm between the radiator and your bod. Part15.21 statement: Changes or modifications not expressly approved by the manufacturer (or party responsible) for compliance could void the user’s authority to operate the equipment ⓒ2022 KOROT Co., Ltd. All rights reserved. KR-ENG-R2-X-XXXX 2 Warnings ※ In general • Consult a doctor before using V2 Doctor if you have cardiovascular disease. • V2 Doctor is a device to measure the blood pressure and pulse rate. Do not use it for any other purpose. • Results can only be interpreted by experienced medical professionals, and cannot be used for diagnosis, medication, or other treatment by the consumer's arbitrary judgment without a doctor's prescription. • Do not use V2 Doctor on an injured arm or during arm treatment. • Do not open or perform any internal modifications on V2 Doctor. • Do not use V2 Doctor along with HF SURGICAL EQUIPMENT. • Do not use near MRI equipment or in the EMC environment. • Do not use in combination with hyperbaric oxygen therapy equipment. • Do not measure on an arm receiving an intravenous injection or blood transfusion. • The application of the cuff and its pressurization on any limb where intravascular access or therapy, or an arterio-venous (A-V) shunt is present could result in injury to the patient because of the temporary interference with blood flow. • Except for the experienced medical professionals, do not use V2 Doctor with other medical or electronic devices at the same time. • Do not use in an environment where there is a risk of flame such as gas or chemical substances. • Too frequent measurements can cause injury to the patient due to the blood flow interference. • Pressurization of the cuff can temporarily cause loss of function of simultaneously used device on the same limb. • There’s the need to check that the operation of the device doesn’t result in prolonged impairment of the circulation of the blood of the patient by observing the limb concerned. • If the patient feels severe pain or abnormalities during measurement, immediately stop measuring blood pressure. • If this device has been modified, proper inspection and testing must be carried out to ensure its continued safe use. • If the air tube is wrapped around the neck, there is a risk of injury or death from suffocation. • Continuous cuff pressure due to connection tubing kinking can cause the effect of blood flow interference resulting harmful injury to the patient. • In case of an emergency during the measurement, press the Start/Stop button or unwrap the cuff. ※ Handling the Adapter • Be sure to use the USB Type-C cable. Forcibly connecting a cable other than USB Type-C may damage V2 Doctor. • USB C-type port is for charging only. • Do not connect the charger with wet hands. • Use a power outlet that meets the specifications. • Do not use V2 Doctor when the cord or AC Adapter has been damaged. Cautions - In general • It is recommended to get preventive inspection every 2 years to maintain its performance and safety. • First, wrap the cuff firmly in place around your arm and wrap the cuff around so that the stethoscope is pressed against the skin (If not, measurement may not be accurate…

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Covered Equipment Certification Attestation Letter 3/16/2023 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: 2BAK8-KOROT-V2 KOROT Co., Ltd. (“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. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. KOROT 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 as an entity producing “covered” equipment. Signed: Printed name: Kyung Keun Kim Title: Executive manager Company Name: KOROT Co., Ltd. Date: 3/16/2023

4/17/2023 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 AUTHORITY TO ACT AS AGENT - FCC On our behalf, I appoint Nemko Korea Co., Ltd (65-51, Yurim-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, 17042, Korea), 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 FCC regulations will have affixed to it a label identical to that submitted for approval with this application. In signing this letter, Applicant certifies that neither the applicant nor any party to the application is not subject to a denial of Federal benefits, that include FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. § 862 because of a conviction for possession or distribution of a controlled substance. See 47 CFR 1.2002(b) for the definition of a "party" for these purposes. 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 Nemko North America Inc., still resides still resides with us. Sincerely, Printed name: Kyung Keun Kim Title: Executive manager Company Name: KOROT Co., Ltd.

COMPANY LETTERHEAD March 22, 2023 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 REQUEST FOR CONFIDENTIALITY - FCC FCC ID: 2BAK8-KOROT-V2 Pursuant to Sections 0.457(d) and 0.459 of the Commission’s Rules and FCC Guidance document 726920, we hereby request permanent confidential treatment of exhibits identified as such in the table below and request they are permanently withheld from public review based on the documents containing trade secrets and proprietary information not customarily released to the public. The public disclosure of this information might be harmful to the applicant and provide unjustified benefits to its competitors. We also request short-term confidentiality on certain exhibits until the intended date of marketing as outlined below. We request the exhibits be withheld from public view for a period of 180 days. We attest marketing of the product will only commence after the period of short-term confidentiality expires, or if marketing is to commence before the requested number of days listed above, the grantee will inform Nemko to release the Short-Term Confidentiality information withheld on the FCC equipment authorization website. Exhibit Type of Confidentiality Requested Block Diagrams ☒ Permanent ☐ Short Term External Photos ------------------ ☒ Short Term Internal Photos ☐ Permanent* ☒ Short Term Operation Description ☒ Permanent ☐ Short Term Tune-Up Procedure ☒ Permanent ☐ Short Term Schematic Diagrams ☒ Permanent ☐ Short Term Test Setup Photos ------------------ ☒ Short Term User’s Manual ☐ Permanent* ☒ Short Term The asterisked items (*) require further information to be provided in this justification letter before permanent confidentiality will be extended to these exhibits. Please refer to FCC KDB 726920 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. Note: any documents held under the Short-Term confidentiality will automatically become public after the requested time if an appropriate extension request has not been received. Any exhibits (i.e., schematic diagrams) that may have already been requested to have “Permanent” confidentiality as shown above need not be repeated under Short-Term confidentiality request. Sincerely, Signed: Printed name: Kyung Keun Kim Title: Executive manager Company Name: KOROT Co., Ltd.

Reference No.: NK-23-R-066 FCC Certification KOROT Co., Ltd. FCC ID : 2BAK8-KOROT-V2 Page 1 of 4 External Photo Front View of EUT Rear View of EUT Reference No.: NK-23-R-066 FCC Certification KOROT Co., Ltd. FCC ID : 2BAK8-KOROT-V2 Page 2 of 4 Top View of EUT Bottom View of EUT Reference No.: NK-23-R-066 FCC Certification KOROT Co., Ltd. FCC ID : 2BAK8-KOROT-V2 Page 3 of 4 Left View of EUT Right View of EUT Reference No.: NK-23-R-066 FCC Certification KOROT Co., Ltd. FCC ID : 2BAK8-KOROT-V2 Page 4 of 4 Front Rear View of EUT (Removed rear cover)

Reference No.: NK-23-R-066 FCC Certification KOROT Co., Ltd. FCC ID : 2BAK8-KOROT-V2 Page 1 of 1 LABELLING REQUIREMENTS The sample label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time of purchase. < Bottom> Labelling Requirements

Reference No.: NK-23-R-066 FCC Certification KOROT Co., Ltd. FCC ID : 2BAK8-KOROT-V2 Page 1 of 5 Internal Photo Internal View of EUT Front View of Battery Reference No.: NK-23-R-066 FCC Certification KOROT Co., Ltd. FCC ID : 2BAK8-KOROT-V2 Page 2 of 5 Front View of Main Board Rear View of Main Board Reference No.: NK-23-R-066 FCC Certification KOROT Co., Ltd. FCC ID : 2BAK8-KOROT-V2 Page 3 of 5 View of Antenna View of Display pannel Reference No.: NK-23-R-066 FCC Certification KOROT Co., Ltd. FCC ID : 2BAK8-KOROT-V2 Page 4 of 5 Front View of Sub Board (STEREO) Front View of Sub Board (STEREO) Reference No.: NK-23-R-066 FCC Certification KOROT Co., Ltd. FCC ID : 2BAK8-KOROT-V2 Page 5 of 5 Front View of Sub Board (USB) Front View of Sub Board (USB)

April 25, 2023 FCC Certification KOROT Co., Ltd. FCC ID : 2BAK8-KOROT-V2 Page 1 of 1 Maximum Permissible Exposure RF Exposure Limit According to KDB 447498D01 v06: The 1g and 10g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ꞏ[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where • f(GHz) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is <5 mm, a distance of 5 mm is applied to determine SAR test exclusion. Device category : Portable device Transmitting mode : Single transmitting Max. transmitting frequency : 2 480 MHz Min. test separation distance : 5 mm Max. Antenna Gain : 5.07 dBi Max. Average power : 0 dBm Max. power with turn-up tolerance : 1 dBm 1.26 mW Maximum Permissible Exposure For this device: 1.26 mW[maximum average output power]/5 mm[minimum separation distance] x √2.48 GHz = 0.41 Note. The calculation result was rounded to one decimal place for comparison. Test Result : This is less than 3.0 for 1-g SAR. SAR evaluation for general population exposure conditions by measurement or numerical simulation is not required.

Test Report No.: NK-23-R-066 FCC ID : 2BAK8-KOROT-V2 TRF-FCC&IC-RF_Rev.0.0 Nemko Korea Co., Ltd. Page 1 of 40 Nemko Korea Co., Ltd. 165-51, Yurim-ro, Cheoin-gu, Yongin-si,Gyeonggi-do,17042, Republic of Korea TEL:+82 31 330-1700 FAX:+82 31 322 2332 FCC EVALUATION REPORT FOR CERTIFICATION Applicant : Dates of Issue : KOROT Co., Ltd. April 26, 2023 5F, 54, 2-gil, Nonhyun-ro, Gangnam-gu, Seoul 06313 KOREA Test Site : Nemko Korea Co., Ltd. Model: KOROT V2 Doctor Additional Model(s): - EUT Type: BLOOD PRESSURE MONITOR Classification: FCC Part 15 Digital Tramsmission System (DTS) Date of Test: March 21, 2023 ~ April 25, 2023 Applied Standard: FCC 47 CFR Part 15.247 The device bearing the brand name and model specified above has been shown to comply with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified in ANSI C63.10-2013. The client should not use it to claim product endorsement by TAF or any government agencies. The test results in the report only apply to the tested sample. I attest to the accuracy of data and all measurements reported herein were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. Tested By : Jaehyong Lee Reviewed By : Hoonpyo Lee Test Engineer Technical Manager FCC ID: 2BAK8-KOROT-V2 Applicant : KOROT Co., Ltd. Brand Name Test Report No.: NK-23-R-066 FCC ID : 2BAK8-KOROT-V2 TRF-FCC&IC-RF_Rev.0.0 Nemko Korea Co., Ltd. Page 2 of 40 Revision History Rev. Issue Date Revisions Revised By 00 April 26, 2023 Initial issue Jaehyong Lee Test Report No.: NK-23-R-066 FCC ID : 2BAK8-KOROT-V2 TRF-FCC&IC-RF_Rev.0.0 Nemko Korea Co., Ltd. Page 3 of 40 TABLE OF CONTENTS 1. INTRODUCTION ............................................................................................................................... 4 1.1 Test facility ....................................................................................................................................................... 4 1.2 Accreditation and listing ................................................................................................................................... 4 2. EUT INFORMATION & TEST CONDITIONS .................................................................................... 5 2.1 EUT Information ............................................................................................................................................... 5 2.2 Operation During Test ...................................................................................................................................... 6 2.3 Support Equipment .......................................................................................................................................... 8 2.4 Setup Drawing .................................................................................................................................................. 8 3. ANTENNA REQUIREMENTS ........................................................................................................... 9 4. SUMMARY OF TEST RESULTS .................................................................................................... 10 5. TEST METHODOLOGY .................................................................................................................. 11 6. DESCRIPTION OF TESTS .............................................................................................................. 12 6.1 6 dB Bandwidth .............................................................................................................................................. 12 6.2 Peak Output Power ........................................................................................................................................ 13 6.3 Power Spectral Density .................................................................................................................................. 14 6.4 Band Edge / Conducted Spurious Emissions ................................................................................................ 15 6.5 Radiated Emissions ....................................................................................................................................... 16 6.7 AC Line Conducted Emissions....................................................................................................................... 17 7. TEST DATA .................................................................................................................................... 18 7.1 6 dB Bandwidth .............................................................................................................................................. 18 7.2 Peak Output Power ........................................................................................................................................ 20 7.3 Power Spectral Density .................................................................................................................................. 22 7.4 Band Edge / Conducted Spurious Emissions ................................................................................................ 24 7.5 Radiated Spurious Emissions ........................................................................................................................ 27 7.6 Radiated Band Edge ...................................................................................................................................... 33 7.7 Radiated Emissions_Below 1GHz ................................................................................................................. 35 7.8 AC Line Conducted .................................................................................................…

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Dielectric Chip Antenna - Application Frequency Band[MHz] Bluetooth2400 ~ 2485 WiFi / Zigbee2400 ~ 2485 S-DMB2630 ~ 2655 Wibro 2300 ~ 2390 band1 : 2300 ~ 2327 band2 : 2331.5 ~ 2358.5 bnad3 : 2363 ~ 2390 Original Design Chip Antenna Data Sheet - P/N : SDBTPTR3015 - Dielectric Chip Antenna ■ SDBTPTR3015 Dimension ParameterLWTABCDE Value[mm] 3.0 ±0.1 1.5 ±0.1 1.2 ±0.1 1.00.550.41.10.65 Unless Specified tolerances are ± 0.05 mm Dielectric Chip Antenna ■ AutoCAD Drawing of Reference PCB Design for SDBTPTR3015 Product 41 2 3 Dielectric Chip Antenna ■ PCB Drawing Top View Case #1 <Default> 12 3 4 Case #2 12 3 4 Case #3 12 3 4 Case #4 12 3 4 Bottom View <Equivalent Circuit> Dielectric Chip Antenna ■ Matching Value Band (MHz) Matching Value (Default) Bluetooth / WiFi / Zigbee (2400 ~ 2485) Connector N/C Ant. 100pF 1.8pF 100 pF N/C S-DMB ( 2630 ~ 2655) Connector N/C Ant. 100pF 1.0nH 100 pF N/C Wibro (2300 ~ 2390) band1:2300~2327 band2:2331.5~2358.5 bnad3:2363~2390 Connector N/C Ant. 100pF 2.0pF 100 pF N/C Dielectric Chip Antenna - 3D Passive Gain For Bluetooth / WiFi / Zigbee ■ Test Result for Ver 0.0 SWR & Smith chart3D Peak [dBi] Average [dBi] Efficiency [%] 2400MHz1.96-0.9780.18 2425MHz1.99-0.6685.92 2445MHz1.74-0.8582.42 2465MHz1.27-1.2575.12 2485MHz0.86-1.6468.59 ■ Radiation PatternVer 0.0 3D Passive Dielectric Chip Antenna - 3D Passive Gain For S-DMB ■ Test Result for Ver 0.0 SWR & Smith chart3D Peak [dBi] Average [dBi] Efficiency [%] 2627MHz4.33-0.3891.80 2642MHz4.67-0.3692.06 2657MHz4.71-0.5688.02 ■ Radiation PatternVer 0.0 3D Passive Dielectric Chip Antenna - 3D Passive Gain For Wibro ■ Test Result for Ver 0.0 SWR & Smith chart3D Peak [dBi] Average [dBi] Efficiency [%] 2300MHz2.51-0.8482.52 2322.5MHz 2.68-0.7883.71 2345MHz3.15-0.4590.20 2367.5MHz 3.02-0.7883.76 2390MHz3.09-0.8682.12 ■ Radiation PatternVer 0.0 3D Passive SDBTPTR3015 Ver 1.0 (2012.08.30) Page 1/4 ProductsDielectric Chip Antenna CustomerLG HE Company ModelRF-Module BM-LDS401 Customer CODEEAA62705201 SupplierPARTRON Supplier CODESDBTPTR3015 22-6, Seokwoo-dong, Hwaseong-si, Gyeonggi-do, 445-170, KOREA Tel : 82-31-201-7870~6 Fax : 82-31-201-7800 www.partron.co.kr Approval Specification SDBTPTR3015 Ver 1.0 (2012.08.30) Page 2/4 - Table of Contents - ※ Cover ....................................................................................................... ※ Table of Content .................................................................................... 1. Manufacturer ........................................................................................... 2. Model Name ........................................................................................... 3. Antenna Type ......................................................................................... 4. Electrical Performance Data .................................................................. 5. External Drawing .................................................................................... 2p 1p 3p 3p 4p 3p 3p SDBTPTR3015 Ver 1.0 (2012.08.30) Page 3/4 1. Menufacturer SupplierPARTRON Supplier CODESDBTPTR3015 2. Model Name Basic ModelLA111-BS - BT Variation ModelRF-Module BM-LDS401 3. Antenna Type - PIFA : Planar Inverted F Antenna 4. Electrical Performance Data 4.1 Specification Sheet ITEMSPEC Antenna PerformanceBluetooth Frequency Range [MHz]2400 ~ 2485 Average Gain [dBi] 3D Peak5.07 Average-1.00 SDBTPTR3015 Ver 1.0 (2012.08.30) Page 4/4 4.2 3D Radiation Pattern - BT Band 3D Radiation Pattern 5. External Drawing 5.1 Antenna Pattern Dimension Antenna Pattern View Unit;mm Unless specified tolerances are ± 0.1

Reference No.: NK-23-R-066 FCC Certification KOROT Co., Ltd. FCC ID : 2BAK8-KOROT-V2 Page 1 of 4 PHOTOGRAPHS OF TEST SET-UP Test Picture show the worst-case configuration and cable placement. Radiated Test_Below 1GHz_Front Radiated Test_Below 1GHz_Rear Reference No.: NK-23-R-066 FCC Certification KOROT Co., Ltd. FCC ID : 2BAK8-KOROT-V2 Page 2 of 4 Radiated Test_Above 1GHz_Front Radiated Test_Above 1GHz_Rear Reference No.: NK-23-R-066 FCC Certification KOROT Co., Ltd. FCC ID : 2BAK8-KOROT-V2 Page 3 of 4 AC Line Conducted Test_Front AC Line Conducted Test_Rear Reference No.: NK-23-R-066 FCC Certification KOROT Co., Ltd. FCC ID : 2BAK8-KOROT-V2 Page 4 of 4 Conducted Test