2BL3606975022531020Handheld electrochemical meter

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EAGLENOS SCIENCES, INC. Current Date 2024-12-19 To: SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. No. 588 West Jindu Road, Songjiang District, Shanghai, China. 201612 Dear Sir/Madam, Subject: Declaration Letter about Identity of Products *WE EAGLENOS SCIENCES, INC., HEREBY DECLARED THAT Product Description: Handheld electrochemical meter Model No.: M422, M425, M426, MG14, MG15, MC12, MC13 Manufacturer’s Name: EAGLENOS SCIENCES, INC. Manufacturer’s Address: B2-2,Treehouse Headquarters Cluster No.73 Tanmi Road,Nanjing Jiangbei New Area,Nanjing, Jiangsu 210044,China The differences between these models are model number, detected parameter and storage capacity, please refer to below table for more details: Except for above differences, they are identical in electrical and electronic characters. Note: The definition of identical should be “electrically identical”. A device will be considered to be electrically identical if no changes are made to the devices’ schematics, board layouts, component layouts, chip sets, resistors and all other electrical aspects of the device are identical. Sincerely, Signature: Printed Name : Tingting Xu Position/Title : Regulatory Affair Supervisor Contact Number: +86-18202478276

SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. Page: 1 of 4 External Photos for SHCR2411002195ME SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. Page: 2 of 4 EUT Constructional Details (EUT Photos) SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. Page: 3 of 4 SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. Page: 4 of 4

SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. Page: 1 of 4 Internal Photos for SHCR2411002195ME SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. Page: 2 of 4 EUT Constructional Details (EUT Photos) SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. Page: 3 of 4 SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. Page: 4 of 4

SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. Report No.: SHCR241100219502 Page: 1 of 10 This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at http://www.sgs.com/en/Terms-and-Conditions.aspx and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at http://www.sgs.com/en/Terms-and-Conditions/Terms-e-Document.aspx. Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 30 days only. Member of the SGS Group (SGS SA) 1 Cover Page RF Exposure Evaluation Report Application No.: SHCR2411002195ME FCC ID: 2BL3606975022531020 Applicant: EAGLENOS SCIENCES, INC. Address of Applicant: B2-2, Treehouse Headquarters Cluster, No.73 Tanmi Road, Nanjing Jiangbei New Area, Nanjing, Jiangsu, 210044, China Manufacturer: EAGLENOS SCIENCES, INC. Address of Manufacturer: B2-2, Treehouse Headquarters Cluster, No.73 Tanmi Road, Nanjing Jiangbei New Area, Nanjing, Jiangsu, 210044, China Factory: EAGLENOS SCIENCES, INC. Address of Factory: B2-2, Treehouse Headquarters Cluster, No.73 Tanmi Road, Nanjing Jiangbei New Area, Nanjing, Jiangsu, 210044, China Equipment Under Test (EUT): EUT Name: Handheld electrochemical meter Model No.: M422 Add Model No.: M425, M426, MG14, MG15, MC12, MC13 Trade Mark: Standard(s) : FCC Rules 47 CFR §2.1093 KDB 447498 D04 interim General RF Exposure Guidance v01 Date of Receipt: 2024-11-01 Date of Test: 2024-11-11 to 2024-11-12 Date of Issue: 2024-11-22 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. Report No.: SHCR241100219502 Page: 2 of 10 Revision Record Version Description Date Remark 00 Original 2024-11-22 / Authorized for issue by: Tested By Wade Zhang/Project Engineer Approved By Parlam Zhan / Reviewer SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. Report No.: SHCR241100219502 Page: 3 of 10 2 Contents Page 1 COVER PAGE................................................................................................................................................. 1 2 CONTENTS ..................................................................................................................................................... 3 3 GENERAL INFORMATION .......................................................................................................................... 4 3.1 GENERAL DESCRIPTION OF E.U.T. ......................................................................................................... 4 3.2 DETAILS OF E.U.T. .................................................................................................................................. 4 3.3 SEPARATION DISTANCE ................................................................................................................................. 4 3.4 TEST LOCATION ....................................................................................................................................... 5 3.5 TEST FACILITY .......................................................................................................................................... 5 4 TEST STANDARDS AND LIMITS ............................................................................................................... 6 5 FCC RADIOFREQUENCY RADIATION EXPOSURE LIMITS ................................................................ 6 5.1 RF EXPOSURE TEST EXEMPTIONS FOR SINGLE RF SOURCES .......................................................................... 6 5.1.1 Blanket 1 mW Blanket Exemption................................................................. 6 5.1.2 MPE-based Exemption ..................................................................................... 6 5.1.3 SAR-based Exemption ..................................................................................... 7 5.2 RF EXPOSURE TEST EXEMPTIONS FOR SIMULTANEOUS TRANSMISSION ........................................................ 8 6 MEASUREMENT AND CALCULATION .................................................................................................. 10 6.1 MAXIMUM TRANSMIT POWER ................................................................................................................. 10 6.2 RF EXPOSURE CALCULATION ...................................................................................................................... 10 SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. Report No.: SHCR241100219502 Page: 4 of 10 3 General Information 3.1 General Description of E.U.T. Power supply: DC 3V (2*AAA Battery) Product Type: Portable device Mobile device Fixed device 3.2 Details of E.U.T. Operation Frequency: 2402MHz to 2480MHz Modulation Type: GFSK Number of Channels: 40 Channel Spacing: 2MHz Antenna Type: Chip Antenna Antenna Gain: 2.2dBi (Provided by manufacturer) Antenna Number: 1 3.3 Separation Distance Separation distance between the antenna to person (R): ＜5mm Remark: This minimum test separation distance is determined by the smallest …

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2.45 GHz High Gain SMD Chip Antenna, AEC-Q200 Qualified P/N 2450AT45A100E-AEC Detail Specification:Page 1 of 11 Mechanical Specifications Inmm No L ±± 1 W ±± 2 T a ±± Johanson Technology, Inc. reserves the right to make design changes without notice. All sales are subject to Johanson Technology, Inc. terms and conditions. https://www.johansontechnology.com 4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821 2021 Johanson Technology, Inc. All Rights Reserved e.g. 2450AT45A100S-AEC Packing Style T & R 100% Tin 2450AT45A100-EB3SMA (Page 8) 2450AT45A100-EB2SMA (Page 5) 2450AT45A100-EB1SMA (Page 2) Mounting Considerations 2: "Horizontal Orientation Type A" (Pages 5) 0.012 Feeding Point Function NC2.000.20 0.20 Evaluation Boards (1-port SMA antenna test boards, pre-tuned) 0.0080.079 Part Number Explanation Suffix = S Suffix = E Suffix = None Bulk (loose pcs.) P/N Suffix 2400 - 2500 e.g. 2450AT45A100E-AEC e.g. 2450AT45A100(E or S)-AEC 2450AT45A100E-AEC 1,000 -40°C to +125°C 3W max. (CW) Impedance50 Ω Mounting Considerations 1: "Vertical Orientation" (Page 2) 2.2 dBi typ. (XZ-V) 1.5 dBi typ. (XZ-V) 1.3 dBi typ. (XZ-V) Humidity 45 - 75% RH 18 months max. High Frequency Ceramic Solutions Terminal Configuration Ver 1.2 4/5/2021 0.0200.50 0.3740.008 0.0471.20+.004/-.008+0.1/-0.2 9.50 0.30 Mounting Considerations 3: "Horizontal Orientation Type B" (Pages 8) Let us help you with the antenna design, optimization, and tuning! https://www.johansontechnology.com/ask-a-question General Specifications Part Number Frequency Range (MHz) Input Power Operating Temp Reel Quantity (pcs/reel) Recommended Storage Conditions and Period for unused Product on T&R Peak Gain Based on Orientation +5 to +35°C 1 2 L W a T Top Bottom 2.45 GHz High Gain SMD Chip Antenna, AEC-Q200 Qualified P/N 2450AT45A100E-AEC Detail Specification:Page 2 of 11 Mount these devices with brown mark facing up. *Line width should be designed to provide 50Ω impedance matching characteristics. Units in mm Orderable Evaluation board: p/n: 2450AT45A100-EB1SMA Johanson Technology, Inc. reserves the right to make design changes without notice. All sales are subject to Johanson Technology, Inc. terms and conditions. https://www.johansontechnology.com 4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821 2021 Johanson Technology, Inc. All Rights Reserved "C" Dimension will depend on the width of the trace required for it to have a 50ohm characteristic impedance (i.e. coplanar waveguide theory) Ver 1.2 1.0 dBi typ. (XZ-V) Mounting Considerations 1: "Vertical Orientation" High Frequency Ceramic Solutions 4/5/2021 Typical Electrical Specs for "Vertical Orientation" (T=25°C) Frequency Range 2400 - 2500 MHz Peak Gain 2.2 dBi typ. (XZ-V) Return Loss 9.5 dB min. Average Gain ) ) 1.8 7.5 10.5 1.0 3.9nH 1.5pF * * GND GND Want the layout file of this? Send us a message at: https://www.johansontechnology.com/ask- a-question Let us help you design this antenna to your PCB and/or optimize your layout for best radiated performance. Send us a message by clicking on the link above. 20 ) ) No Ground or Metals underneath 4012 50Ω Feed Line GND GND 1.5pF 3.9nH Note: It is recommended that the designer leave available slots for a "pi" (or shunt-series-shunt) network. The antenna matching network values above are used when antenna is mounted on Johanson's evaluation board. The matching values on client's PCB will be different, go to: https://www.johansontechnology.com/tuningand see how to obtain the new values. If you need further help, contact our RF Applications Eng Team at: https://www.johansontechnology.com/ask-a-question C 2.45 GHz High Gain SMD Chip Antenna, AEC-Q200 Qualified P/N 2450AT45A100E-AEC Detail Specification:Page 3 of 11 Return Loss a) Without a Matching Circuit b) With a Matching Circuit Johanson Technology, Inc. reserves the right to make design changes without notice. All sales are subject to Johanson Technology, Inc. terms and conditions. https://www.johansontechnology.com 4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821 2021 Johanson Technology, Inc. All Rights Reserved Ver 1.2 High Frequency Ceramic Solutions 4/5/2021 Typical Electrical Characteristics for "Vertical Orientation" (T=25°C) 2.45 GHz High Gain SMD Chip Antenna, AEC-Q200 Qualified P/N 2450AT45A100E-AEC Detail Specification:Page 4 of 11 Johanson Technology, Inc. reserves the right to make design changes without notice. All sales are subject to Johanson Technology, Inc. terms and conditions. https://www.johansontechnology.com 4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821 2021 Johanson Technology, Inc. All Rights Reserved High Frequency Ceramic Solutions 4/5/2021 Typical Radiation Patterns for "Vertical Orientation" (T=25°C) Ver 1.2 ) ) ) XY-V/XY-H 180° 270° 0° 90° X Z Y XY-cut scanning direction XY cut @2.45GHz Vertical Horizontal XZ-V/XZ-H YZ-V/YZ-H 180° 270° 0° 90° X Z Y XZ-cut scanning direction 180° 270° 0° 90° X Z Y YZ-cut scanning direction XZ cut @2.45GHz Vertical Horizontal YZ cut @2.45GHz Vertical Horizontal 2.45 GHz High Gain SMD Chip Antenna, AEC-Q200 Qualified P/N 2450AT45A100E-AEC Detail Specification:Page 5 of 11 Mount these devices with brown mark facing up. *Line width should be designed to provide 50Ω impedance matching characteristics. Units in mm Orderable Evaluation board: p/n: 2450AT45A100-EB2SMA Johanson Technology, Inc. reserves the right to make design changes without notice. All sales are subject to Johanson Technology, Inc. terms and conditions. https://www.johansontechnology.com 4001 Calle Tecate • Camarillo, CA 93012 • TEL 805.389.1166 FAX 805.389.1821 2021 Johanson Technology, Inc. All Rights Reserved Ver 1.2 Mounting Considerations 2: "Horizontal Orientation Type A" "C" Dimension will depend on the width of the trace required for it to have a 50ohm characteristic impedance (i.e. coplanar waveguide theory) High Frequency Ceramic Solutions 4/5/2021 Return Loss9.5…

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SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. SHEM-TRF-001 Rev. 02 Sep01, 2023 Report No.: SHCR241100219501 Page: 1 of 71 This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at http://www.sgs.com/en/Terms-and-Conditions.aspx and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at http://www.sgs.com/en/Terms-and-Conditions/Terms-e-Document.aspx. Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 30 days only. Member of the SGS Group (SGS SA) TEST REPORT Application No.: SHCR2411002195ME FCC ID: 2BL3606975022531020 Applicant: EAGLENOS SCIENCES, INC. Address of Applicant: B2-2, Treehouse Headquarters Cluster, No.73 Tanmi Road, Nanjing Jiangbei New Area, Nanjing, Jiangsu, 210044, China Manufacturer: EAGLENOS SCIENCES, INC. Address of Manufacturer: B2-2, Treehouse Headquarters Cluster, No.73 Tanmi Road, Nanjing Jiangbei New Area, Nanjing, Jiangsu, 210044, China Factory: EAGLENOS SCIENCES, INC. Address of Factory: B2-2, Treehouse Headquarters Cluster, No.73 Tanmi Road, Nanjing Jiangbei New Area, Nanjing, Jiangsu, 210044, China Equipment Under Test (EUT): EUT Name: Handheld electrochemical meter Model No.: M422, M425, M426, MG14, MG15, MC12, MC13 Remark: Please refer to section 2 of this report which indicates which model was actually tested and which were electrically identical. Trade Mark: Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2024-11-01 Date of Test: 2024-11-11 to 2024-11-12 Date of Issue: 2024-11-22 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. SHEM-TRF-001 Rev. 02 Sep01, 2023 Report No.: SHCR241100219501 Page: 2 of 71 Revision Record Version Description Date Remark 00 Original 2024-11-22 / Authorized for issue by: Tested By Wade Zhang/Project Engineer Approved By Parlam Zhan / Reviewer SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. SHEM-TRF-001 Rev. 02 Sep01, 2023 Report No.: SHCR241100219501 Page: 3 of 71 2 Test Summary Radio Spectrum Technical Requirement Item Standard Method Requirement Result Antenna Requirement 47 CFR Part 15, Subpart C 15.247 N/A 47 CFR Part 15, Subpart C 15.203 & 15.247(b)(4) Pass Radio Spectrum Matter Part Item Standard Method Requirement Result Conducted Peak Output Power 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 11.9.1 47 CFR Part 15, Subpart C 15.247(b)(3) Pass Minimum 6dB Bandwidth ANSI C63.10 (2013) Section 11.8.1 47 CFR Part 15, Subpart C 15.247a(2) Pass Power Spectrum Density ANSI C63.10 (2013) Section 11.10.2 47 CFR Part 15, Subpart C 15.247(e) Pass Conducted Band Edges Measurement ANSI C63.10 (2013) Section 11.13.3.2 47 CFR Part 15, Subpart C 15.247(d) Pass Conducted Spurious Emissions ANSI C63.10 (2013) Section 11.11 47 CFR Part 15, Subpart C 15.247(d) Pass Radiated Emissions which fall in the restricted bands ANSI C63.10 (2013) Section 6.10.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Below 1GHz ANSI C63.10 (2013) Section 6.4,6.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Above 1GHz ANSI C63.10 (2013) Section 6.6 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Note: There are series models mentioned in this report, and they are the similar in electrical and electronic characters. Only the model M422 was tested since their differences were the model number, detected parameter and storage capacity. SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. SHEM-TRF-001 Rev. 02 Sep01, 2023 Report No.: SHCR241100219501 Page: 4 of 71 3 Contents Page 1 COVER PAGE ............................................................................................................................................ 1 2 Test Summary ........................................................................................................................................... 3 3 Contents .................................................................................................................................................... 4 4 General Information .................................................................................................................................. 6 4.1 Details of E.U.T. ................................................................................................................................. 6 4.2 Power level setting using in test: ........................................................................................................ 6 4.3 Description of Support Units .............................................................................................................. 6 4.4 Measurement Uncertainty .................................................................................................................. 6 4.5 Test Location ...................................................................................................................................... 8 4.6 Test Facility .................................…

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SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. Page: 1 of 3 Appendix Photographs of Test Setup for SHCR2411002195ME Test Model No.: M422 SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. Page: 2 of 3 Test Setup Photo Radiated Spurious Emissions Below 1GHz Radiated Spurious Emissions Above 1GHz SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. Page: 3 of 3 The EUT Details of Zoom RF Conducted