2AFWN-ELF26F6BXHTemperature Sensor Tag

REV 1.1 SOLUM 1 General Description SOLUM NEWTON Electronic Shelf Labels (ESLs) are components to a total SOLUM’s ESL System. The SOLUM’s ESL System consists of the ESLs, Gateway(s), Server, Sensor Tag and optional accessories (such as the Newton Remote Controller) and is used to electronically displays key information such as price and product information, that are traditionally printed or written on paper in environments like supermarkets, warehouses, and factories. Newton ESLs come in various sizes and colors to meet all customer use cases. They are battery powered for ease of deployment and wirelessly receive updates from SOLUM Gateway for. Newton temperature and humidity sensors are used in fresh foods, refrigerators, and freezers to provide section-specific temperature and humidity information through a gateway. You can find information on the dashboard. REV 1.1 SOLUM 2 Specification This section details specification of ESL temperature and humidity sensor tag. 2.1 Product Specification Item Description Label Dimensions 2.6”: 79.2 x 42.5 x 13.1 mm / 3.12 x 1.67 x 0.52 inch Item Description Label Weight 2.6” : 38.40gr / 1.354 oz Battery Type and quantity of batteries defer based on ESL CR2450 Battery Pack - 2p Wireless Communication 2.4 GHz Unlicensed ISM band SOLUM proprietary protocol FeliCa NFC Forum Type 3 (13.56MHz) NFC Passive Only Communication Distance 147 feet (45m) radius Line of Sight Security 128-bit AES Encryption Compliance FCC, IC, CE, TELEC, RoHS Operating Temperature Freezer ESLs TEMP & Humidity Sensor : -30°C ~ 60°C (-22F ~ 140F) Storage Temperature 32F ~ 104F (0C ~ 40C) @45~70% RH REV 1.1 SOLUM Radio (RF) Specification Item Parameter Specification Unit Condition Min Typ Max Tx Tx Power - 4 - dBm [Carrier Frequency Offset and Drift] -75 0 75 kHz Tx Current - 10 mA total current at max Tx Power Rx Receiver Sensitivity -85 - - dBm PER < 5% 2.2 Temperature & Humidity Specification Item Specification Unit Condition Min Typ Max Temperature Accuracy - ±0.1 ±0.3 °C -30 °C ≤ TA ≤ 60 °C Relative Humidity Accuracy - ±5.0 - %RH TA = 25 °C , 10% to 90% RH REV 1.1 SOLUM 2.3 NFC Specification Item Parameter Specification Unit Condition Min Typ Max NFC Read Distance - 0.7 - in - 20 - mm NFC antenna location shown for each ESL size. TEMP & Humidity Sensor tag NFC location is same as below picture. REV 1.1 SOLUM 3 Product Handling Precautions Provisions should be made to protect against any damage to the product caused by improper handling. The purchaser assumes any responsibility for damage to the product caused by improper handling. Product should be stored in 32F ~ 104F (0C ~ 40C) @45~70% RH environment and should be installed within 90 days of receipt. 3.1 Usage Environment Take extra caution when using this RF device in the vicinity of other electronic devices and appliances. Most electronic devices and appliances use electromagnetic waves. Electromagnetic waves emitted by this RF device can affect other electronic devices and appliances. If using the device in an explosion hazard area, follow all safety regulations, instructions, and signals. 3.2 Storage and Use Ÿ Moisture and liquids can damage internal parts and circuit boards if allowed to enter into the device itself. Ÿ Do not place or store the product on a sloped surface. The product may slide and fall off the surface and become damaged. Ÿ Use the product in temperatures ranges of 0°C~40°C/32~104°F(BWR), 0°C~30°C/32~86°F (BWY), 0°C~40°C/32~104°F(BWRY) , -25°C~0°C/- 13~32°F(Freezer) or -30°C ~ 60°C /-22F ~ 140F (TEMP&HUMID Sensor) . Parts and circuits may be damaged if operated or stored in extreme temperature. Ÿ The display panel needs extra care during handling. - Do not apply any impacts on the e-Paper display as it is fragile. - Continuous exposure to excessive moisture (over 70% RH) or UV shortens display lifetime. - Ghosting image may appear in temperature conditions of less than 15°C/59°F for normal tags and -25°C/ -13°F for freezer tags. (If ΔL* >2, we call it ghosting phenomenon) Ÿ Avoid areas with strong magnetism or subject to magnetism. Contact between the device and a magnetic object can lead to malfunctions. Ÿ Do not place the product near heat-producing kitchen appliances like a stove or a microwave or in the vicinity of highly pressurized containers. REV 1.1 SOLUM Ÿ External impact to the product, such as from being dropped, can damage the product. Ÿ Twisting and bending the product can damage the exterior casing and the internal components. Ÿ If this product operates abnormally while removing battery or replacing battery, it needs to be discharged by contacting the battery terminals (+) and (-) in the product. Ÿ This product uses the 2.4GHz frequency band for the wireless communication network. Radio communications can be limited or affected by other applications that share the same frequency band, such as WiFi, Bluetooth, Zigbee, etc. Ÿ A prior investigation into the radio environment is strongly required for efficient and smooth installation. Ÿ Frequent communications, updates and screen renewals may reduce battery life time. Ÿ Low temperature environments may reduce battery life. Ÿ FIFO (First In First Out) 3.3 Product Cleaning For Spray Cleaning: Steps ① Lightly spray all surfaces and wait a few seconds. ② Gently wipe clean using a cloth or tissue. ③ Let the labels dry. Notes: Ø Use mild, non-alcoholic detergents or glass cleaner. Ø Recommend non-abrasive cloths: Microfiber, Cotton T-shirt, Cotton handkerchief, Cotton tea towel For Wet Tissue Cleaning: Steps ① Stand or lay down the labels. ② Wipe using wet tissues. ③ Let the labels dry. REV 1.1 SOLUM 3.4 Battery Replacement Audience - Authorized personnel with the following knowledge are allowed to replace the battery: Battery / Electronic assemblies (e.g. circuit board) / Compliance with the instruction ※ Note: Warranty is voided if battery is replaced by unauthorized personnel. (When batteries require replacement, please contact the authorized pers…

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Rev 1/26/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 06-05-2024 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2AFWN-ELF26F6BXH SOLUM 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. Sincerely, NAME: Ki Dong Lee Applicant: SOLUM CO.,LTD. Rev 1/26/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 05-24-2024 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2AFWN-ELF26F6BXH SOLUM 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 a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, NAME: Ki Dong Lee Applicant: SOLUM CO.,LTD.

Rev 1/26/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 06-05-2024 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2AFWN-ELF26F6BXH Applicant FRN: 0025024894 SOLUM CO., LTD (“the applicant”) certifies that, as of the date of the filing of the application, SOLUM America INC is our designated U.S. agent for service of process for the above referenced FCC ID. SOLUM CO., LTD 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. SOLUM America 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: SOLUM America INC FRN (If the U.S. agent has an FRN): 0033504820 Address: 65 Challenger rd, Suite 220 Ridgefield park, NJ 07660, USA Contact Person: Hyunseok Jeong Tel.: 201 310 5242 Email: [email protected] Sincerely, SOLUM CO., LTD SOLUM America INC Ki Dong Lee Hyunseok Jeong

Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA SUBJECT: FCC Application for (FCC ID : 2AFWN-ELF26F6BXH) Method of fixing the battery cover The battery cover is fixed using glue. Therefore, the user can not be remove or replace. [Glue] Model : Loctite 242, Maker : LOCTITE. [Step] Step #1 (With Loctite 242) Step #2 (waterproofing) * Don’t remove the battery cover or replace it by others Regards, Date: 06-05-2024 NAME: Ki Dong Lee Applicant: SOLUM CO.,LTD.

Rev 11/20/07 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID : 2AFWN-ELF26F6BXH 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 Schematics_PCB Layout Parts List Operational Description Block Diagram.pdf Schematics.pdf Schematics_PCB Layout.pdf Part List.pdf Operational Description.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. Sincerely, NAME: Ki Dong Lee Applicant: SOLUM CO.,LTD.

Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date : June 05, 2024 SUBJECT: FCC Application for (FCC ID : 2AFWN-ELF26F6BXH) To Whom It May Concern: We, the undersigned, hereby authorize Young-taek, Lee at CTK on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by CTK 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, NAME: Ki Dong Lee Applicant: SOLUM CO.,LTD.

CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com EUT External Photographs CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com

CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com Label Photographs and Location Label

CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com EUT Internal Photographs CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com {2401-2480MHz Antenna(TX, RX)} {NFC Antenna(RX)}

CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com Page 1 of 2 RF EXPOSURE EVALUATION FCC ID : 2AFWN-ELF26F6BXH Standard Requirement The following FCC Rule Parts and procedures are applicable : Part 1.1310 Radiofrequency radiation exposure limits Part 2.1091 Radiofrequency radiation exposure evaluation : Mobile device Table 1 below sets forth limits for Maximum Permissible Exposure (MPE) to radiofrequency electromagnetic fields. Table 1—Limits for Maximum Permissible Exposure (MPE) Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm 2 ) Averaging time (minutes) (A) Limits for Occupational/Controlled Exposure 0.3-3.0 614 1.63 *100 6 3.0-30 1842/f 4.89/f *900/f 2 6 30-300 61.4 0.163 1.0 6 300-1,500 f/300 6 1,500-100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3-1.34 614 1.63 *100 30 1.34-30 824/f 2.19/f *180/f 2 30 30-300 27.5 0.073 0.2 30 300-1,500 f/1500 30 1,500-100,000 1.0 30 f = frequency in MHz * = Plane-wave equivalent power density CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com Page 2 of 2 MPE calculation S = EIRP / (4πR 2 ) Where S : Power density (mW/cm 2 ) EIRP : P + T + G (dBm) P : Maximum transmitter power (dBm) G : Antenna gain (dBi) R : distance to the centre of radiation of the antenna (cm) T : Power tolerance (dB) Safety distance(R) : 20 cm Mode Conducted Output power [dBm] Antenna Gain [dBi] Power tolerance [dB] Power density [mW/cm 2 ] Limit [mW/cm 2 ] GFSK 3.303 -0.81 + 1.50.000 5 1 Conclusion This confirms compliance to the required Radio frequency radiation exposure limit.

TEST REPORT CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 Report No.: CTK-2024-01899-1 Page (1) / (28) Pages [QF-QP15-07] Ver.02 Project Number: CTK-R-2024-03130 R101 1. Applicant ◦ Name : SOLUM CO.,LTD. ◦ Address : 4,5,6th F, 357, Guseong-ro, Giheung-gu, Yongin-si, Gyeonggi-do, Republic of Korea (Zip 16914) ◦ Date of Receipt : 2024-06-05 2. Manufacturer ◦ Name : SOLUM CO.,LTD. ◦ Address : 4,5,6th F, 357, Guseong-ro, Giheung-gu, Yongin-si, Gyeonggi-do, Republic of Korea (Zip 16914) 3. Factory ◦ Name : SOLUM VINA CO., LTD ◦ Address : Plot B3, Ba Thien 2 Industrial park, Thien Ke Ward, Binh Xuyen District, Vinh Phuc Province, 281200.,Peple's Republic of Vietnam 4. Use of Report : For FCC Certification & ISED Certification 5. Test Sample / Model : Temperature Sensor Tag / ELF26F6BXH 6. Date of Test : 2024-06-13 to 2024-06-21 7. Test Standard(method) used : FCC 47 CFR part 15 subpart C 15.247, ANSI C63.10-2013, RSS-247, RSS-Gen 8. Testing Environment : refer to 7 page 9. Test Results : Compliance 10. Location of Test : Permanent Testing Lab On Site Testing (Address : 5, Dongbu-ro 221beon-gil, Cheoin-gu, Yongin-si, Gyeonggi-do, 17141 Korea) The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This report cannot be reproduced or copied without the written consent of CTK. Approval Tested by Seoung-uk Park: (Signature) Technical Manager Young-taek Lee: (Signature) Remark. This report is not related to KOLAS accreditation and relevant regulation. 2024-07-02 CTK Co., Ltd. CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 Report No.: CTK-2024-01899-1 Page (2) / (28) Pages [QF-QP15-07] Ver.02 Project Number: CTK-R-2024-03130 R101 REPORT REVISION HISTORY Date Revision Page No 2024-07-02 Issued (CTK-2024-01899) all 2024-07-02 Issued (CTK-2024-01899-1) 1. Change the applicant’s address 1 & 4 Page This report shall not be reproduced except in full, without the written approval of CTK Co., Ltd. This document may be altered or revised by CTK Co., Ltd. personnel only, and shall be noted in the revision section of the document. Any alteration of this document not carried out by CTK Co., Ltd. will constitute fraud and shall nullify the document. CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 Report No.: CTK-2024-01899-1 Page (3) / (28) Pages [QF-QP15-07] Ver.02 Project Number: CTK-R-2024-03130 R101 CONTENTS 1. General Product Description ........................................................................................ 4 1.1 Applicant Information ......................................................................................... 4 1.2 Product Information ............................................................................................ 4 1.3 Peripheral Devices .............................................................................................. 4 2. Accreditations ........................................................................................................... 5 2.1 Laboratory Accreditations and Listings .................................................................. 5 2.2 Calibration Details of Equipment Used for Measurement .......................................... 5 3. Test Specifications ..................................................................................................... 6 3.1 Standards.......................................................................................................... 6 3.2 Mode of operation during the test ......................................................................... 7 3.3 Maximum Measurement Uncertainty ..................................................................... 7 3.4 Test Software ..................................................................................................... 7 3.5 Testing Environment .......................................................................................... 7 4. Technical Characteristic Test ........................................................................................ 8 4.1 6dB Bandwidth & 99% Bandwidth......................................................................... 8 4.2 Maximum peak Conducted Output Power ............................................................. 10 4.3 Power Spectral Density ..................................................................................... 12 4.4 Band Edge & Conducted Spurious emission .......................................................... 14 4.5 Radiated Emission ............................................................................................ 17 APPENDIX A – Test Equipment Used For Tests ................................................................. 28 CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 Report No.: CTK-2024-01899-1 Page (4) / (28) Pages [QF-QP15-07] Ver.02 Project Number: CTK-R-2024-03130 R101 1. General Product Description 1.1 Applicant Information Company SOLUM CO.,LTD. Contact Point 4,5,6th F, 357, Guseong-ro, Giheung-gu, Yongin-si, Gyeonggi-do, Republic of Korea (Zip 16914) Contact Person Name : Ki Dong Lee E-mail : [email protected] Tel : +82-31-8006-7677 1.2 Product Information FCC ID 2AFWN-ELF26F6BXH IC 22800-ELF26F6BXH Product Description Temperature Sensor Tag Model name ELF26F6BXH Variant Model name - Operating Frequency 2 401 MHz - 2 480 MHz RF Output Power 3.303 dBm(2.139 mW) Antenna Specification Antenna type : PCB Antenna Peak Gain : -0.81 dBi Number of channels 80 Channel Spacing 1 MHz Type of Modulation GFSK Power Source DC 3.0 V(Battery) FVIN V29 Test Software(Version) Tera term (Version 4.8.5) RF Power setting in Test SW Power setting input “40” 1.3 Peripheral Devices -For Conducted Measurement and Radiat…

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ART SIGNAL ANTENNA TOTAL SOLUTION ART SIGNAL Company _ Antenna Total Solution ( ART - S 2021) Ver.1 2020 INDEX ANTENNA TOTAL SOLUTION ART SIGNAL Company _ Antenna Total Solution ( ART-S 2023) . 2.4G Antenna Test Data Ver.1 2021 Test by : Dong-Kyu Hwang ART SIGNAL CO., LTD. A-1008, Woolim Lion's Vally 2nd, 14, Sagimakgol-ro 45beon-gil, Jungwon-gu, Seongnam-si, Gyeonggi-do, KOREA 2023-11-14 Solu-M 2.6 Inch Tag #1 ANT Test Data - Network & 3D gain & 3D Radiation Pattern ART SIGNAL Company _ Antenna Total Solution ( ART-S 2024) Ver.1 2024 3D gain 1 2 3 4 5 Frequency [MHz] 2400 2420 2440 2460 2485 Efficiency [dB] -6.17 -5.96 -5.70 -5.87 -6.35 Efficiency [%] 24.2 25.3 26.9 25.9 23.2 Peak Gain [dB] -1.48 -1.22 -0.81 -0.86 -1.06 Directivity [dB] 4.69 4.74 4.90 5.02 5.29 Minimum Gain [dB] -12.46 -12.29 -12.10 -12.36 -11.73 Solu-M Newton TEMP Tag #1 TEST DATA Picture VSWR ART SIGNAL Company _ Antenna Total Solution ( ART-S 2024) Ver.1 2024 2400 2420 2440 2460 2485 3D Radiation Pattern 2.4G ANT DATA – 3D Radiation Pattern ART SIGNAL Company _ Antenna Total Solution ( ART-S 2023) Ver.1 2021 E5071B (Agilent) 8753ES (Agilent) Network Analyzer CTIA 3D OTA Chamber(A+Tech) Measurement Equipment

CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com Test Setup Photos and Configuration Radiated Electric Field Emissions [9 kHz to 30 MHz] [30 MHz to 1 GHz] CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com [1 GHz to 18 GHz] [18 GHz to 26.5 GHz] CTK Co., Ltd. (Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com Conducted test