2AEMI-M635M-SoM LTE-M/2G/Satellite + Wi-Fi for Global

Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Subject: U.S. Agent for Service of Process - 47 CFR § 2.911(d)(7) To whom it may concern, This letter is to confirm that Particle Industries, Inc. (the “Applicant”) will also serve as its own agent pursuant to 47 CFR part § 2.911(d)(7) of the FCC rules for service of process. The Applicant acknowledges that the requirement to maintain an agent extends for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceedings involving the equipment. The Applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information changes. Applicant: Company Name: Particle Industries, Inc. Contact Name: Nick Lambourne Company Address: 548 Market St. PMB 34833, San Francisco, California, 94104, USA Telephone No: 415-319-1553 Email: [email protected] Applicant FRN: 0024539330 Signature: Date: June 23, 2026 Signed by (Printed name): Nick Lambourne, CTO

Particle Industries, Inc. Federal Communicaons Commission Authorizaon and Evaluaon Division 7435 Oakland Mills Road Columbia, MD 21046 USA RE: Aesta on Statements Part 2.911(d)(5)(i) request for FCC ID : 2AEMI-M635[Par cle Industries, Inc.] (“the applicant”) cer ,es that the equipment for which authoriza on is sought is not “covered” equipment prohibited from receiving an equipment authoriza on pursuant to sec on 2.903 of the FCC rules. We also cer fy that, as of the date of the ,ling of the applica on, the equipment does not u lize cyber-security or an -virus so7ware from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, Signature: Contact Person: Nick Lambourne Title: VP + CTO, Par cle by Digi Date:!June!23rd!2026 Particle Industries, Inc. Federal Communicaons Commission Authorizaon and Evaluaon Division 7435 Oakland Mills Road Columbia, MD 21046 USA RE: Aesta on Statements Part 2.911(d)(5)(ii) request for FCC ID : 2AEMI-M635 [Par cle Industries, Inc.] (“the applicant”) cer ,es that, as of the date of the ,ling of the applica on, the applicant is not iden ,ed on the Covered List as an en ty producing “covered” equipment. Sincerely, Signature: Contact Person: Nick Lambourne Title: VP + CTO, Par cle by Digi Date:!June!23rd!2026

Particle Industries, Inc. Declaration Letter Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA To Whom It May Concern: Company Name: Particle Industries, Inc. Company Address: 548 Market St, PMB 34833, San Francisco, CA 94104, USA Hereby confirm that the following products: FCC ID: 2AEMI-M635 Product Name: M-SoM LTE-M/2G/Satellite + Wi-Fi for Global Model No.: M635e Particle Industries, Inc. hereby declares that product M-SoM LTE-M/2G/Satellite + Wi-Fi for Global integrates the module : M SoM (FCC ID: 2AEMI-M404, Grant Date: 2024-04-07) and NTN Satellite Communication Module (FCC ID: XMR202406BG95S5, Grant Date: 2024-09-02) and NTN Satellite Communication Module (FCC ID: XMR202406BG95S5, Grant Date: 2024-12-13). The above module has been integrated in the product. And we attest that there are no hardware changes to this module, the M SoM product has disabled the cellular module function through software, and the NTN Satellite Communication Module has also disabled the NB-LoT module function through software. Pursuant to KDB 996369 D02, the original modular reports as listed in the table below are submitted to represent the compliance of Part 15C/15E/22/24/27/90 conducted RF testing items of this device. Product Name Product Model Module Function Report Number M SoM M404 BLE RF2312WDG0147-1 2.4G WiFi RF2312WDG0147-2 5.2G&5.3G&5.6G&5.8G WIFI RF2312WDG0147-3 NTN Satellite Communication Module BG95-S5 GSM 850/1900 SZCR240600220102 (Grant Date: 2024-09-02) LTE Cat M: Band 2/4/5/12/13/25/26/66/85 SZCR240600220102 (Grant Date: 2024-09-02) NTN B23/255 FYCR240700001901 (Grant Date: 2024-09-02) NTN Satellite Communication Module BG95-S5 NTN B23/255 FYCR241200002001 (Grant Date: 2024-12-13) Particle Industries, Inc. The radiated RF testing items are tested, and the test report is submitted additionally. Sincerely, Signature: Contact Person: Nick Lambourne Title:VP + CTO, Particle by Digi Date: June 26rd 2026

Particle Industries, Inc. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID: 2AEMI-M635 Date: June 18th, 2026 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Software Security Description Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Nick Lambourne Title: VP + CTO, Particle by Digi Email: [email protected] Date: June 23rd 2026

Parcle Industries, Inc. MODULAR APPROVAL LETTER FCC ID: 2AEMI-M635 Modular Approval RequirementYesNo (i) The radio elements of the modular transmitter must have their own shielding. The physical crystal and tuning capacitors may be located external to the shielded radio elements. Yes,!the modular transmitter has their own shielding (ii) The modular transmitter must have buered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with part 15 requirements under conditions of excessive data rates or over-modulation. Yes,!the modular transmitter has buered! modulation/data inputs!to!meet! part!15 requirements (iii) The modular transmitter must have its own power supply regulation. Yes,!the modular transmitter has its own power supply!regulation. (iv) The modular transmitter must comply with the antenna and transmission system requirements of §§ 15.203, 15.204(b) and 15.204(c). The antenna must either be permanently attached or employ a ‘‘unique’’ antenna coupler (at all connections between the module and the antenna, including the cable). The ‘‘professional installation’’ provision of § 15.203 is not applicable to modules but can apply to limited modular!approvals under paragraph (b) of this section. Yes,!the modular transmitter! complies with the antenna and transmission system requirements of §§ 15.203, 15.204(b) and 15.204(c),!it! employ a ‘‘unique’’ antenna coupler (v) The modular transmitter must be tested in a stand-alone con+guration Yes,!the modular transmitter!has! been!tested in a stand-alone con+guration (vi) The modular transmitter must be equipped with either a permanently a,xed label or must be capable of electronically displaying its FCC identi+cation number. Yes,!the modular transmitter has!a permanently a,xed label! displaying its FCC identi+cation number (vii) The modular transmitter must comply with any speci+c rules or operating requirements that ordinarily apply to a complete transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. Yes,!the modular transmitter! complies with!FCC rules,!and!the! detail!re1ected!in! user!manual. Parcle Industries, Inc. (viii) The modular transmitter must comply with any applicable RF exposure requirements in its +nal con+guration. Yes,!the modular transmitter complies with RF exposure requirements in its +nal con+guration Signature: Contact Person: Nick Lambourne Title:!VP!+!CTO,!Particle!by!Digi Phone: 4153249829 E-Mail: [email protected] Date:!June!23rd!2026

Particle Industries, Inc. Power of Attorney / Authorization to Act as Agent To Whom It May Concern: We, the undersigned, hereby authorize Judy ! Xu !at!Sushi TOWE Wireless Testing (Shenzhen) Co., Ltd. on our behalf, in all matters relating to all processes related to FCC!certification including the signing of documents in connection with this application. Any and all acts carried out by Sushi TOWE Wireless Testing (Shenzhen) Co., Ltd. on our behalf shall have the same! effect as acts of our own. Thank you for your attention to this matter. If you have any questions regarding this authorization, please don’t hesitate to contact us. Sincerely, Signature:! Contact Person: Nick Lambourne Title:!VP!+!CTO,!Particle!by!Digi Phone: 4153249829 E-Mail: [email protected] Date:!June!23rd!2026

Sushi TOWE Wireless Testing (Shenzhen) Co., Ltd. Report No.: TSEA26050045006 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. TEST REPORT Applicant: Particle Industries, Inc. EUT Description: M-SoM LTE-M/2G/Satellite + Wi-Fi for Global Model: M635e Brand: Particle FCC ID: 2AEMI-M635 Standards: FCC 47 CFR Part 2.1091 Date of Receipt: 2026/05/14 Date of Issue: 2026/06/17 TOWE. tested the above equipment in accordance with the requirements set forth in the above standards. The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. the results documented in this report apply only to the tested sample, under the conditions and modes of operation as described herein. It is the manufacturer's responsibility to assure that additional production units of the model are manufactured with identical electrical and mechanical components. All sample tested were in good operating condition throughout the entire test program. Measurement Uncertainties are published for informational purposes only and were not taken into account unless noted otherwise. without written approval of TOWE, the test report shall not be reproduced except in full. Jim Huang Approved By: Carey Chen Reviewed By: Page 2 / 11 Report No.: TSEA26050045006 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. Revision History Rev. Issue Date Description Revised by 01 2026/06/17 Original Carey Chen Page 3 / 11 Report No.: TSEA26050045006 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. Table of Contents 1 General Description ............................................................................................................................4 1.1 Lab Information .....................................................................................................................4 1.1.1 Testing Location ..............................................................................................................4 1.1.2 Test Facility / Accreditations ............................................................................................4 1.2 Client Information .................................................................................................................4 1.2.1 Applicant ..........................................................................................................................4 1.2.2 Manufacturer ....................................................................................................................4 1.3 Product Information ..............................................................................................................5 2 Maximum Permissible RF Exposure .................................................................................................7 2.1 RF Exposure Limit Introduction ..........................................................................................7 2.2 Equations ..............................................................................................................................8 3 RF Exposure Results ..........................................................................................................................9 3.1 Standalone Exposure Calculations .....................................................................................9 3.2 Multiple Sources Exposure Calculations ..........................................................................10 Page 4 / 11 Report No.: TSEA26050045006 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. 1 General Description 1.1 Lab Information 1.1.1 Testing Location These measurements tests were conducted at the Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. facility located at F401 and F101, Building E, Hongwei Industrial Zone, Liuxian 3rd Road, Bao'an District, Shenzhen, China. The measurement facility is compliant with the test site requirements specified in ANSI C63.4-2014 Tel.: +86-755-27212361 Contact Email: [email protected] 1.1.2 Test Facility / Accreditations A2LA (Certificate Number: 7088.01) This laboratory is accredited in accordance with the recognized International Standard ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer to joint ISO-ILAC-IAF Communiqué dated April 2017). FCC Designation No.: CN1353 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. has been recognized as an accredited testing laboratory. Test Firm Registration Number: 684095 Designation Number: CN1353. ISED CAB identifier: CN0152 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. has been recognized by ISED …

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Sushi TOWE Wireless Testing (Shenzhen) Co., Ltd. Report No.: TSEA26050045001 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. TEST REPORT Applicant: Particle Industries, Inc. EUT Description: M-SoM LTE-M/2G/Satellite + Wi-Fi for Global Model: M635e Brand: Particle FCC ID: 2AEMI-M635 Standards: FCC CFR Title 47 Part 2 FCC CFR Title 47 Part 22 FCC CFR Title 47 Part 24 FCC CFR Title 47 Part 25 FCC CFR Title 47 Part 27 FCC CFR Title 47 Part 90 Date of Receipt: 2026/05/14 Date of Test: 2026/05/14 to 2026/06/17 Date of Issue: 2026/06/17 TOWE. tested the above equipment in accordance with the requirements set forth in the above standards. The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. the results documented in this report apply only the tested sample, under the conditions and modes of operation as described herein. It is the manufacturer's responsibility assure that additional production units of the model are manufactured with identical electrical and mechanical components. All sample tested were in good operating condition throughout the entire test program. Measurement Uncertainties are published for informational purposes only and were not taken into account unless noted otherwise. without written approval of TOWE, the test report shall not be reproduced except in full. Jim Huang Approved By: Carey Chen Reviewed By: Page 2 / 84 Report No.: TSEA26050045001 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. Revision History Rev. Issue Date Description Revised by 01 2026/06/17 Original Carey Chen Page 3 / 84 Report No.: TSEA26050045001 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. Summary of Test Results FCC Part Test Band Test Item Test Result §2.1046 §22.913(a)(5) §27.50(b)(10) §27.50(c)(10) GSM850/LTE Band 5/26(824 ~ 849MHz) LTE Band 13 LTE Band 12/85 Effective Radiated Power Pass* §2.1046 §24.232(c) §27.50(d)(4) GSM1900/LTE Band 2/25 LTE Band 4/66 Effective Isotropic Radiated Power §2.1046 §90.635(b) LTE Band 26(814 ~ 824MHz) Transmitter Conducted Output Power §22.913(d) §24.232(d) §27.50(d)(5) GSM850/LTE Band 5/26(824 ~ 849MHz) GSM1900/LTE Band 2/25 Others Band Peak-Average Ratio Reference report SZCR240600220102 §2.1049 All Band Occupied Bandwidth §2.1051 §90.691(a) LTE Band 26(814 ~ 824MHz) Emission Mask §2.1051 §22.917(a) §24.238(a) §27.53(c) §27.53(g) §27.53(h) GSM850/LTE Band 5/26(824 ~ 849MHz) GSM1900/LTE Band 2/25 LTE Band 13 LTE Band 12/85 LTE Band 4/66 Band Edge §2.1051 §22.917(a) §24.238(a) §27.53(c) §27.53(g) §27.53(h) §90.691 GSM850/LTE Band 5/26(824 ~ 849MHz) GSM1900/LTE Band 2/25 LTE Band 13 LTE Band 12/85 LTE Band 4/66 LTE Band 26(814 ~ 824MHz) Spurious Emission at Antenna Terminals §2.1055 §22.355 §24.235 §27.54 §90.213 GSM850/LTE Band 5/26(824 ~ 849MHz) GSM1900/LTE Band 2/25 Others Band LTE Band 26(814 ~ 824MHz) Frequency Stability §2.1053 §22.917(a) §24.238(a) §27.53(c)&(f) §27.53(g) GSM850/LTE Band 5/26(824 ~ 849MHz) GSM1900/LTE Band 2/25 LTE Band 13 LTE Band 12/85 Field Strength of Spurious Radiation Pass Page 4 / 84 Report No.: TSEA26050045001 Sushi TOWE Wireless Testing(Shenzhen) Co., Ltd. Email: [email protected] Tel.: +86-755-27212361 TOWE-QP-15-F05 Rev.1.1 All rights reserved. Unless otherwise specified, no part of this report may be reproduced or utilized in any part, form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from TOWE. FCC Part Test Band Test Item Test Result §27.53(h) §90.691 LTE Band 4/66 LTE Band 26(814 ~ 824MHz) Remark: 1. Pass: Meet the requirement. 2. Pass*: Only the power for GSM 1900 was tested. The items of power data for other Bands refer to the previous report, updated the ERP/EIRP and only the maximum power of all frequency bands displayed in this report. FCC Part Test Band Test Item Test Result §2.1046 §25.204 NTN Band 23/255 Effective Isotropic Radiated Power Pass* §2.1049(h) NTN Band 23/255 Occupied Bandwidth Reference report FYCR241200002001 §2.1051 §25.202 (f)(1)(2) NTN Band 23/255 Emission Mask §2.1051 §25.202 (f)(3) NTN Band 23/255 Conducted Spurious emissions §2.1055 §25.202 (d) NTN Band 23/255 Frequency Stability §25.216(c)(e)(h)(i) NTN Band 23/255 Additional unwanted emission limits for MESs §2.1053 §25.202 (f)(3) NTN Band 23/255 Field Strength of Spurious Radiation Pass Remark: 1. Pass: Meet the requirement. 2. Pass*: The items of power data refer to the previous report, updated the EIRP and only the maximum power of all frequency bands displayed in this report. Remark: In this report the power for GSM 1900 and Field Strength of Spurious Radiation was tested, and the other data please refer to the previous report with report number SZCR240600220102 (FCC ID: XMR202406BG95S5) issued by SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch and FYCR241200002001 (FCC ID: XMR202406BG95S5) issued by Compliance Certification Services (Kunshan) Inc. Shenzhen Branch. Page 5 / 84 Report No.: TSEA26050045001 Sushi TOWE Wireless Testing(Shenzhen…

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