2ALTW17012020LHW 1701 E 2.0-20

Salunda Limited 6 Avonbury Business Park Howes Lane, Bicester Oxfordshire OX26 2UA United Kingdom Tel.: +44 (0)1869 843120 Doc nr. U.S. Agent Designation for Service of Process (Applicant and U.S. Agent are Separate Parties) TO: Kiwa Nederland B.V. Wilmersdorf 50 7327 AC Apeldoorn Postbus 137 7300 AC Apeldoorn Netherlands ATTENTION: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company name: Salunda USA LLC FRN 0034122804 Contact person name: Andrew Glanville Street address: 4215 S Main Street, Suite 53 ZIP/City/State 77477/Stafford/Texas Telephone number: 832-444-9800 Email address: [email protected] Signature: Date: July 14 th , 2023 This letter is to confirm that we (“the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name: Salunda Ltd Grantee Code: 2ALTW FRN 0026436519 Contact person name: Grant Nicholls Street address: Salunda Ltd, 6 Avonbury Business Park ZIP/City/State Bicester, Oxfordshire, UK, OX26 2UA Telephone number: (+44) 1869 843120 Email address: [email protected] Signature: Date: July 14 th , 2023

Salunda Limited 6 Avonbury Business Park Howes Lane, Bicester Oxfordshire OX26 2UA United Kingdom Tel.: +44 (0)1869 843120 E-mail:[email protected] Web:www.salunda.com Certification Application Attestation Statements Subject: FCC ID: 2ALTW17012020 To Whom It May Concern: Statement for 47 CFR section 2.911(d)(5)(i) Salunda Ltdcertifies that as of the date of the application the equipment for which authorization is sought is not “covered” equipment 1 prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, including affiliates or subsidiaries of the named companies, the applicant must include an explanation on why the equipment is not “covered” equipment. Additional Explanation: <N/A> Statement for 47 CFR section 2.911(d)(5)(ii) Salunda Ltd (“the applicant”) certifies that, as of the date of the filing of this application, the applicant - is / - is not (3) identified on the Covered List as an entity producing “covered” equipment. Date: October 17, 2023 City: Bicester Name (2) : Grant Nicholls Function: Engineering Director FRN: 0026436519 Telephone number: +44 1869 843120 Email address: [email protected] Signature: 1 - The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist . (2): For FCC it must be the Grantee Code “owner” or the authorized agent. (3): double click on the appropriate box and select ‘’checked” then “OK” Salunda Ltd. Registered in England No 5230854 Registered Office: 6 Avonbury Business Park, Howes Lane, Bicester, OX26 2UA

Salunda Limited 6 Avonbury Business Park Howes Lane, Bicester Oxfordshire OX26 2UA United Kingdom Tel.: +44 (0)1869 843120 E-mail: [email protected] Web: www.salunda.com Salunda Ltd. Registered in England No 5230854 Registered Office: 6 Avonbury Business Park, Howes Lane, Bicester, OX26 2UA Declaration of Authorization We Name: Salunda Ltd Address: 6 Avonbury Business Park, Howes Lane City: Bicester Country: United Kingdom Declare that: Name Representative of agent: Daniel Sims Agent Company name: RN Electronics Ltd Address: Arnolds Court, Arnolds Farm Lane City: Mountnessing, Brentwood Country: United Kingdom is authorized to apply for Certification of the following product(s): Product description: LHW 1701 E Type designation: 2.0-20 Trademark: Latch Hawk Validity/expiry date: October 30 th , 2024 on our behalf. Date: October 30 th , 2023 City: Bicester Name: Grant Nicholls Function: Engineering Director Signature:

FCC, Request for non-disclosure Date: 23-06-2023 RF_501, Issue 11 Page 1 of 2 Company Name: Salunda Ltd Address: Unit 6, Avonbury Business Park City: Bicester Country: United Kingdom To: Kiwa Netherlands B.V., Dept. FCC TCB Wilmersdorf 50 7327 AC Apeldoorn The Netherlands Subject: Request for confidentiality FCC ID: 2ALTW17012020 Reference number: ###### Dear FCC TCB, 1. Long-Term Confidentiality Pursuant to 47 CFR Section 0.459(a) & (b), we hereby requests non-disclosure and confidential treatment of the following materials submitted in support of FCC certification application: Bill(s) of Material Block Diagrams Operational Description Schematic Diagrams Tune-up Procedure Internal Photos User’s Manual Above materials contain secrets, proprietary and technical information, which would customarily be guarded from competitors under 47 CFR, section 0.457(d)(2). Disclosure or publication or any portion of this company confidential material to other parties could cause substantial competitive harm and provide unjustified benefits for competitors. Salunda Limited has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. The user manual contains proprietary technical information, all sales and distribution of the of the user manual is under NDA that restricts the disclosure of the information. Internal photos and user manuals are prevented from becoming public or disclosed by means of not making the document available online and by NDA between Salunda and the party receiving internal photos or user manuals. The subject is not serviceable item and therefore no service documents are available to professional designated technicians. All sales of the subject are under NDA including third party sales and that the final user of the device is subject to the NDA. 2. Short-Term Confidentiality (STC) Pursuant to Public Notice DA 04-1705 of the Commission’s policy, in order to comply with the marketing regulations in 47 CFR §2.803 and the importation rules in 47 CFR §2.1204, applicant hereby requests Short-Term Confidential treatment of the following materials (See notes below): Internal Photos User’s Manual Test Set-up Photos External Photos FCC, Request for non-disclosure Date: 23-06-2023 RF_501, Issue 11 Page 2 of 2 Justification: Date: 9 th December 2023 Name and signature of applicant: Daniel Sims (Agent) Notes: 1) A document or type of document can only have ONE type of confidentiality! 2) Short-Term confidentiality is in principle for 45 days from date of grant; it can be extended max 3 times (total time 180 days max.)! The planned date should state in the RF731 application form. 3) FCC must be informed when marketing begins earlier. 4) Release takes place automatically thus extension must be requested in time. Telefication does not remind you of this! 5) Request for extension or for release must be received by Kiwa NL B.V. at least 7 days before date of actual marketing or before expiration of the STC period

Salunda Limited - Confidentiality Agreement (Two-Way) - Page 1 of 4 THIS AGREEMENT IS DATED 4 th May 2017 PARTIES (1) Salunda Limited incorporate and registered in England and Wales with company number 05230854 whose registered office is at 6, Avonbury Business Park, Howes Lane, Bicester, Oxfordshire, OX26 2UA, United Kingdom (Salunda) ; and (2) ________. With company number 2500898 whose registered address is at __________________, United Kingdom, _______ (Customer). BACKGROUND Salunda and Customer desire to exchange certain Confidential Information about themselves including but not limited to such product, hardware, software, technical, operational, business, financial, procedural and other proprietary information as each party determines, in its sole discretion, is reasonably necessary or desirable to disclose for the purposes of evaluation, testing and use of oilfield equipment monitoring applications and equipment (Purpose). In consideration of the benefits to the parties of the disclosure of the Confidential Information, the parties have agreed to comply with the following terms in connection with the use and disclosure of Confidential Information. AGREED TERMS 1. DEFINITIONS AND INTERPRETATION 1.1 “Commencement Date” means 1 May 2017. “Confidential Information” means all confidential information disclosed by the Disclosing Party or its Representatives to the Receiving Party and its Representatives from the Commencement Date of this Agreement, including but not limited to any information relating to the finances, business affairs, customers, clients, suppliers, plans, intentions, or market opportunities of the Disclosing Party; and the Intellectual Property, technology, operations, processes, technical data, inventions, product development plans, manufacturing, engineering, product information, internal product photographs, product specification, guides and materials, know-how, product designs, manuals or instructions for use of the products or software of the Disclosing Party; and any information or analysis derived from Confidential Information. Confidential Information shall be disclosed in documentary or tangible form and marked “Confidential” or “Proprietary.” In the case of disclosures in non-documentary form, made orally or by visual inspection, the Disclosing Party shall confirm in writing the fact and general nature of each such disclosure within thirty (30) days after it is made. Notwithstanding the foregoing, it is agreed that failure to mark documents or reduce oral disclosures to writing shall not alleviate the Receiving Party of its obligations under this Agreement if the disclosed information would reasonably be considered confidential based upon the nature of the information or the circumstances surrounding its disclosure 1.2 “Disclosing Party” means a party to this Agreement which discloses or makes available directly or indirectly Confidential Information to the Receiving Party. 1.3 Receiving Party” means a party to this Agreement which receives or obtains directly or indirectly Confidential Information. 1.4 “Representative” means employees, agents and other representatives of a party. 1.5 “Intellectual Property” means patents, rights to inventions, copyright and related rights, trade marks and service marks, business names and domain names, rights in get-up and trade dress, goodwill and the right to sue for passing off, rights in designs, product specification and information, rights in computer software, source codes, database rights, rights to use, and protect the confidentiality of, confidential information (including know-how and trade Salunda Limited - Confidentiality Agreement (Two-Way) - Page 2 of 4 secrets) and all other intellectual property rights and all similar or equivalent rights or forms of protection which subsist or will subsist now or in the future in any part of the world. 1.6 For the purposes of this Agreement, information shall not be deemed to be Confidential Information if such information: 1.6.1 is or becomes generally available to the public other than as a result of disclosure by the Receiving Party or its Representatives; or 1.6.2 is known by the Receiving Party prior to disclosure by the Disclosing Party; or 1.6.3 is or becomes available to the Receiving Party or its Representatives from a source not under obligation of confidentiality to the Disclosing Party; or 1.6.4 can be demonstrated through written records to have been independently developed by the Receiving Party without the use of or reference to the Confidential Information of the Disclosing Party. 2. OBLIGATIONS OF THE RECEIVING PARTY 2.1 The existence and terms of this Agreement and the existence of any discussions between the parties under this Agreement are Confidential Information of both parties and are protected by each party’s obligations of confidentiality hereunder. 2.2 Each party shall use the Confidential Information solely for the Purpose. The Receiving Party will not disclose or otherwise make known any of the Confidential Information of the Disclosing Party to anyone, except those of its Representatives who have a need to know the Confidential Information for the Purpose and who are bound by the non- use and non-disclosure obligations set forth in this Agreement. Each party shall accept the disclosures of the Confidential Information by the other party on a confidential basis and shall exercise the same degree of care with respect to the other party’s Confidential Information as it would its own Confidential Information. 2.3 The Receiving Party may disclose Confidential Information to the extent such Confidential Information is required to be disclosed by law, by any governmental or other regulatory authority, or by a court or other authority of competent jurisdiction provided that, to the extent it is legally permitted to do so, it gives the Disclosing Party as much notice of this disclosure as possible and, so that the Disclosing Party may seek a protective …

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Salunda Limited 6 Avonbury Business Park Howes Lane, Bicester Oxfordshire OX26 2UA United Kingdom Tel.: +44 (0)1869 843120 E-mail: [email protected] Web: www.salunda.com Salunda Ltd. Registered in England No 5230854 Registered Office: 6 Avonbury Business Park, Howes Lane, Bicester, OX26 2UA Salunda Ltd – October 30 th , 2023 FCC ID 2ALTW17012020 Required Exhibits for FCC Certification External Photos Salunda Limited 6 Avonbury Business Park Howes Lane, Bicester Oxfordshire OX26 2UA United Kingdom Tel.: +44 (0)1869 843120 E-mail: [email protected] Web: www.salunda.com Salunda Ltd. Registered in England No 5230854 Registered Office: 6 Avonbury Business Park, Howes Lane, Bicester, OX26 2UA Salunda Limited 6 Avonbury Business Park Howes Lane, Bicester Oxfordshire OX26 2UA United Kingdom Tel.: +44 (0)1869 843120 E-mail: [email protected] Web: www.salunda.com Salunda Ltd. Registered in England No 5230854 Registered Office: 6 Avonbury Business Park, Howes Lane, Bicester, OX26 2UA Salunda Limited 6 Avonbury Business Park Howes Lane, Bicester Oxfordshire OX26 2UA United Kingdom Tel.: +44 (0)1869 843120 E-mail: [email protected] Web: www.salunda.com Salunda Ltd. Registered in England No 5230854 Registered Office: 6 Avonbury Business Park, Howes Lane, Bicester, OX26 2UA

Salunda Ltd – October 30 th , 2023 FCC ID 2ALTW17012020 Required Exhibits for FCC Certification FCC E-Label Information A. Images of the e-label screen are provided below: This label is shown on the monitor running the Latch Hawk Monitor Software connected to a server running Hawk Server. The Hawk Server is connected to the 1701E 2.0-20 via a Ethercat Gateway 1801A-GW. B. Access to the required information on the e-label Users are able to access the information in no more than three steps in a device’s menu. The steps are: 1. Load the device window. 2. Click the device serial number to view the FCC ID 3. The screen above is displayed. C. Devices have physical labels at point of marketing/sale visible to the purchaser (or in the alternative, on the packaging), and at time of importation? • The manual contains the FCC ID of the device • There is a label which will be fixed to the box containing the 1701E 2.0-20 with the FCC ID shown in document “1701-2.0-20 - Box Label” attached. D. Electronic labelling information is programmed into the device by the manufacturer at the time of manufacture. Yes. E. Electronic labelling information not modifiable by any third party. The E-label is hardcoded into the device such that it cannot be altered by a third party F. All the applicable regulatory information required on the packaging or user instructions is provided according to the rules. Applicable regulatory information not found in the e-label is contained in the user manual

Latch Hawk wireless sensor LHW 1701 E 2.0-20 (EUT) RF Exposure: - The Latch Hawk wireless sensor 1701 E 2.0-20 is intended as a fixed device attached to equipment where monitoring of latch position/status is required. A person’s body would not normally be within 20cm of the device. Evaluation is for exposure potential against the SAR test Exclusion limits given in KDB447498 D01 v06 section 4.3.1. Exclusion requirements are based upon 1g SAR exclusion for body. Equation of 4.3.1. part 1A Transposed is: Exclusion in mW = ((Threshold / (√F) * D where: Threshold = 3 for 1g SAR body F = Frequency in GHz (2.4GHz) D = Separation distance in mm (50mm) Threshold in mW for 2.4 GHz @ 50mm = 96.8246 mW. Threshold in mW for 2.48 GHz @ 50mm = 95.2500 mW. Threshold in mW for 2.4 GHz and 2.48 GHz @ 200mm is based on equation above and 4.3.1. part b)2) (excerpt below) b) For 100 MHz to 6 GHz and test separation distances > 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: 2) {[Power allowed at numeric threshold for 50 mm in step a)] + [(test separation distance –50 mm)·10]} mW, for > 1500 MHz and ≤6 GHz 2.4 GHz = 96.8246(mW) + ((200-50)*10) = 1596.82 mW. 2.48 GHz = 95.2500(mW) + ((200-50)*10) = 1595.25 mW. Both Radiated and conducted power measurements were made, with conducted power reporting higher results, therefore, conducted power is used for this evaluation. Measured conducted values for the EUT were worst case: 6.72 dBm (4.7 mW) Peak on the middle channel 2440 MHz. This shows the EUT is excluded from RF Exposure / SAR testing requirements before even any duty cycle (source-based time averaged maximum conducted power) conditions are applied. This calculation was prepared by Daniel Sims of Kiwa RN Electronics Ltd, Acting as Agent towards FCC certification. Date: 29 th November 2023 Signed: (Radio Approvals Manager)

Page 1 of 75 File Name: Salunda Ltd.13769-1 Issue 01 QMF21J - Issue 05 - RNE Issue 03; 47 CFR Part 15C 2021 Radio Test Report Salunda Ltd 1701E 2.0 20 47 CFR Part 15.247 Effective Date 1st October 2021 DTS: Part 15 Digital Transmission System Test Date: 7th August 2023 to 4th September 2023 Report Number: 09-13769-1-23 Issue 01 The testing was carried out by RN Electronics Ltd, an independent test house, at their test facility located at: R.N. Electronics Ltd. Arnolds Court Arnolds Farm Lane Mountnessing Essex CM13 1UT U.K. www.RNelectronics.com Telephone: +44 (0) 1277 352219 Email: [email protected] This laboratory is accredited in accordance with the recognised International Standard ISO/IEC 17025. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer joint ISO-ILAC-IAF communiqué dated April 2017). This report is not to be reproduced by any means except in full and in any case not without the written approval of R.N. Electronics Ltd. ©2023 RN ELECTRONICS LIMITED REPORT NUMBER: 09-13769-1-23 Issue 01 ALL RIGHTS RESERVED Page 2 of 75 File Name: Salunda Ltd.13769-1 Issue 01 QMF21J - Issue 05 - RNE Issue 03; 47 CFR Part 15C 2021 Arnolds Court, Arnolds Farm Lane, Mountnessing, Brentwood Essex, CM13 1UT Certificate of Test 13769-1 The equipment noted below has been fully tested by R.N. Electronics Limited and, where appropriate, conforms to the relevant subpart of RSS-139. This is a certificate of test only and should not be confused with an equipment authorisation. Other standards may also apply. Equipment: 1701E Model Number: 2.0 20 Unique Serial Number: 60000048 (Radiated) / 69999901 (Conducted) Applicant: Salunda Ltd Unit 6 Avonbury Business Park Bicester Oxon OX26 2UA Proposed FCC ID 2ALTW17012020 Full measurement results are detailed in Report Number: 09-13769-1-23 Issue 01 Test Standards: 47 CFR Part 15.247 Effective Date 1st October 2021 DTS: Part 15 Digital Transmission System NOTE: Certain tests were not performed based upon applicant's declarations. Certain other requirements are subject to applicant's declaration only and have not been tested/verified. For details refer to section 3 of this report. DEVIATIONS: No deviations have been applied. This certificate relates only to the unit tested as identified by a unique serial number and in the condition at the time it was tested. It does not relate to any other similar equipment and performance of the product before or after the test cannot be guaranteed. Whilst every effort is made to assure quality of testing, type tests are not exhaustive and although no non-conformances may be found, this doesn't exclude the possibility of unit not meeting the intentions of the standard or the requirements of the Federal Regulations, particularly under different conditions to those during testing. Any compliance statements are made reliant on (a) the application of the product and use of the assigned band being acceptable to the FCC and (b) the modes of operation as instructed to us by the Customer based on their specific knowledge of the application and functionality of the EUT. Statements of compliance, where measurements were made, do not include the measurement uncertainty. The measurement uncertainty, where stated, is the expanded uncertainty based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95%. Date of Test: 7th August 2023 to 4th September 2023 Test Engineer: Chee-Wah Yeung Approved By: Radio Approvals Manager Customer Representative: ©2023 RN ELECTRONICS LIMITED REPORT NUMBER: 09-13769-1-23 Issue 01 ALL RIGHTS RESERVED Page 3 of 75 File Name: Salunda Ltd.13769-1 Issue 01 QMF21J - Issue 05 - RNE Issue 03; 47 CFR Part 15C 2021 1 Contents 1 Contents .................................................................................................................................................................................................3 2 Equipment under test (EUT) ...................................................................................................................................................................4 2.1 Equipment specification ................................................................................................................................................................4 2.2 Configurations for testing...............................................................................................................................................................5 2.3 Functional description ...................................................................................................................................................................5 2.4 Modes of operation .......................................................................................................................................................................6 2.5 Emissions configuration ................................................................................................................................................................6 3 Summary of test results ..........................................................................................................................................................................7 4 Specifications .........................................................................................................................................................................................8 4.1 Relevant standards .........................................................................................................................................................................8 4.2 Deviations .......................................................................................................................................................................................8 4.3 Tests at extremes of temper…

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Test set-up photos for J13769-1 1.0 Radiated emissions 9 kHz - 30 MHz 1.1 Radiated emissions 30 MHz -1 GHz Upright Position Side Position Flat Position 1.2 Radiated emissions 1-25 GHz