IECEx Certificate

5. IECEx Certificate of Conformity Certificate No.: IECEx ULD 10.0 018 Issue No.: 4 Page 1 of 3 PARAMETERS RELATING TO THE SAFETY Um: 250V Uo: 9.1V Normal Operating Parameters: POWER CABLE : In: 6.5 Vdc +/ - 5 %; Out: 6.5 Vdc +/ - 5 % COMMUNICATION CABLE : In: 5 Vdc +/ - 10 % (USB); Out: 3V TTL VEHICLE POWER CABLE: In: 12 Vdc/24 Vdc; Out: 6.5 Vdc +/ - 5 % PO WER AND COMMUNICATION CABLE : In: 5 Vdc +/ - 10 % (USB); Out: 3V TTL (Communication), 6.5 Vdc +/ - 5 % (Power) In: 12 Vdc/24 Vdc; Out: 6.5 Vdc +/ - 5 % CRADLE CHARGER In: 6.5 Vdc +/ - 5 %; Out: 6.5 Vdc +/ - 5 % CRADLE POWER AND COMMUNICATIONS In : 6.5 Vdc +/ - 10 %; Ou t: 3V TTL (Communication), 6.5 Vdc +/ - 5 % (Power) BLUETOOTH ENABLED POWER CABLE In: 6.5 Vdc +/ - 5 %; Out: 3V TTL (Communication), 6.5 Vdc +/ - 5 %

3. IECEx Certificate of Conformity Certificate No.: IECEx ULD 10.0018 Date of issue: 2021-04-29 Page 3 of 4 Issue No: 4 EQUIPMENT: Equipment and systems covered by this Certificate are as follows: SPECIFIC CONDITIONS OF USE: NO The associated apparatus consists of 7 different model variants, intended for use as charging and/or communication devices when connected to I.S. equipment. The connection of I.S. equipment to the associated apparatus must only be performed in a non-hazardous location. Please see Annex for additional information.

4. IECEx Certificate of Conformity Certificate No.: IECEx ULD 10.0018 Date of issue: 2021-04-29 Page 4 of 4 Issue No: 4 DETAILS OF CERTIFICATE CHANGES (for issues 1 and above) Annex: Annex to IECEx ULD 10.0018 Issue 4.pdf Issue 1: No technical change, update of ExTR to IEC 60079-0, Ed. 5. Issue 2: Addition of 2 new model variants, change of applicant and manufacturing location, update to Ed. 6 of IEC 60079-0 and IEC 60079-11. Issue 3: Addition of model BLUETOOTH ENABLED POWER CABLE. Markings revised. Issue 4: No changes to the equipment. Evaluation to standard IEC 60079-0 latest edition.

6. IECEx Certificate of Conformity Certificate No.: IECEx ULD 10.0 018 Issue No.: 4 Page 2 of 3 MARKING Marking has to be readable and ind e lible; it has to include the following indica tions : 1004 - 1098 10 0 4 - 2501 1004 - 2502 1004 - 2503 MCAD - 002997 MCAD - 002999

7. IECEx Certificate of Conformity Certificate No.: IECEx ULD 10.0 018 Issue No.: 4 Page 3 of 3 MCAD - 003852 Note: Hatched areas cont ain CE mark and ATEX Notified B o dy numb er.

1. IECEx Certificate of Conformity INTERNATIONAL ELECTROTECHNICAL COMMISSION IEC Certification System for Explosive Atmospheres for rules and details of the IECEx Scheme visit www.iecex.com Certificate No.: IECEx ULD 10.0018 Status: Current Date of Issue: 2021-04-29 Applicant: Crowcon Detection Instruments Ltd 172 Brook Drive, Milton Park Abingdon, Oxfordshire OX14 4SD United Kingdom Equipment: Battery Charging and Communication Cable Assemblies Optional accessory: Type of Protection: Intrinsic safety "ia" Marking: Page 1 of 4 Issue No: 4 Certificate history: Issue 3 (2020-07-21) Issue 2 (2015-03-31) Issue 1 (2011-10-07) Issue 0 (2011-05-04) [Ex ia Ga] 0 o C ≤ Ta ≤ +40 o C 1. 2. 3. Approved for issue on behalf of the IECEx Certification Body: Position: Signature: (for printed version) Date: This certificate and schedule may only be reproduced in full. This certificate is not transferable and remains the property of the issuing body. The Status and authenticity of this certificate may be verified by visiting www.iecex.com or use of this QR Code. Certificate issued by: UL International DEMKO A/S Borupvang 5A DK-2750 Ballerup Denmark Katy A. Holdredge Senior Staff Engineer 2021-04-29

2. IECEx Certificate of Conformity Certificate No.: IECEx ULD 10.0018 Date of issue: 2021-04-29 Page 2 of 4 Issue No: 4 Manufacturer: Crowcon Detection Instruments Ltd 172 Brook Drive Milton Park, Abingdon, Oxfordshire, OX14 4SD United Kingdom Additional manufacturing locations: This certificate is issued as verification that a sample(s), representative of production, was assessed and tested and found to comply with the IEC Standard list below and that the manufacturer's quality system, relating to the Ex products covered by this certificate, was assessed and found to comply with the IECEx Quality system requirements.This certificate is granted subject to the conditions as set out in IECEx Scheme Rules, IECEx 02 and Operational Documents as amended STANDARDS : The equipment and any acceptable variations to it specified in the schedule of this certificate and the identified documents, was found to comply with the following standards IEC 60079-0:2017 Edition:7.0 Explosive atmospheres - Part 0: Equipment - General requirements IEC 60079-11:2011 Edition:6.0 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i" This Certificate does not indicate compliance with safety and performance requirements other than those expressly included in the Standards listed above. TEST & ASSESSMENT REPORTS: A sample(s) of the equipment listed has successfully met the examination and test requirements as recorded in: Test Reports : Quality Assessment Report : DK/ULD/ExTR10.0019/00 DK/ULD/ExTR10.0019/01 DK/ULD/ExTR10.0019/02 DK/ULD/ExTR10.0019/03 DK/ULD/ExTR10.0019/04 GB/BAS/QAR06.0070/09