2AIKSPUCK4PUCK 4

Instruction Manual (FW 1.00.00 11/2022) Puck 4 Dive Computer 3 • TABLE OF CONTENTS IMPORTANT WARNINGS 4 DISCLAIMER 4 PART I 5 • 1. INTRODUCTION 5 1.1. GLOSSARY 5 1.2. OPERATING MODES 6 1.3. USER-REPLACEABLE BATTERY 6 1.4. COMMUNICATING VIA BLUETOOTH 6 1.5. BUTTON OPERATION 6 • 2. MENUS AND SETTINGS 8 2.1. SET 8 2.1.1. MODE 8 2.1.2. ALGORITHM (ALGO) 8 2.1.2.1. MAIN GF (MAIN) 9 2.1.2.2. REPETITIVE DIVES (REP) 9 2.1.2.3. MULTIDAY (M-dAY) 9 2.1.3. WARNINGS (WARN) 9 2.1.3.1. MAX DEPTH 9 2.1.3.2. DIVE TIME 9 2.1.3.3. NO DECO 9 2.1.3.4. ENTERING DECO 9 2.1.4. MULTIGAS (MULtI) 9 2.1.4.1. PREDICTIVE (PR.dICt) 9 2.1.4.2. SWITCH BELOW MOD (bELOW) 9 2.1.5. WATER 9 2.1.6. DEEP STOP 9 2.1.7. ERASE DESAT 9 2.1.8. ALL SILENT 10 2.1.9. ASCENT VIOLATION 10 2.1.10. SURFACING MODE (SURF) 10 2.1.11. BACKLIGHT (LIGHt) 10 2.1.12. UNITS 10 2.1.13. CLOCK 10 2.2. LOGBOOK (LOG) 10 2.3. DIVE PLANNER (PLAN) 10 2.4. INFO 10 2.5. BLUETOOTH (BLE) 10 PART II 10 • 3. DIVING WITH PUCK 4 10 3.1. A FEW WORDS ABOUT NITROX 10 3.2. ALTITUDE 11 3.3. ALARMS 11 3.3.1. ASCENT RATE 11 3.3.2. MOD/ppO 2 11 3.3.3. CNS = 75% 11 3.3.4. MISSED DECOMPRESSION STOP 11 3.3.4.1. MISSED DECO STOP MODE 12 3.3.5. LOW BATTERY 12 3.4. DISPLAY INFORMATION 12 3.4.1. DETAILED DESCRIPTION OF DISPLAYED DATA 12 3.4.2. DEEP, DECO AND SAFETY STOPS 13 • 4. AFTER THE DIVE 13 • 5. DIVING WITH MORE THAN ONE GAS MIXTURE 13 5.1. SETTING MORE THAN ONE GAS 14 5.2. SWITCHING GAS 14 5.3. SPECIAL SITUATIONS 14 5.3.1. SWITCHING BACK TO A GAS MIXTURE WITH LOWER OXYGEN CONCENTRATION 14 5.3.2. SUBMERGING BELOW THE MOD AFTER A GAS SWITCH 14 • 6. BOTTOM TIMER MODE 14 6.1. DIVE VIOLATION INDUCED BOTTOM TIMER MODE 15 • 7. TAKING CARE OF PUCK 4 15 7.1. TECHNICAL INFORMATION 15 7.2. MAINTENANCE 15 7.2.1. REPLACING THE BATTERY IN PUCK 4 15 • 8. WARRANTY 16 8.1. WARRANTY EXCLUSIONS 16 8.2. HOW TO FIND THE PRODUCT SERIAL NUMBER AND ELECTRONIC ID 16 • 9. DISPOSAL OF THE DEVICE 16 4 No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form without the written permission of Mares S.p.A. Mares adopts a policy of continuing improvement, and therefore reserves the right to make changes and enhancements to any of the products described in this manual without notice. Under no circumstances shall Mares be held responsible for any loss or damage sustained by third parties deriving from the use of this instrument. ⚠ WARNING A dive computer is an electronic instrument and as such it is not immune to failure. To protect yourself against the unlikely event of a failure, in addition to the dive computer, also use a depth gauge, a submersible pressure gauge, a timer or watch, and dive tables. ⚠ WARNING Do not dive if the display appears unusual or unclear. ⚠ WARNING The dive computer must not be used in conditions that preclude its use (e.g.: low or no visibility, making it impossible to read the gauge). ⚠ WARNING The dive computer cannot ensure against possible decompression sickness. DISCLAIMER This manual describes how to operate an instrument and it describes the information provided by the instrument during a dive. Neither this manual nor the instrument are a substitute for dive training, common sense and good diving practices. How the information provided by the instrument is interpreted and put to use by the diver is not the responsibility of Mares. Read the manual carefully and make sure you understand completely how the instrument works and the information it provides during a dive, including information on depth, time, decompression obligations and all warnings and alarms. Unless you fully understand how the instrument works and the information it displays and unless you accept full responsibility for using this instrument, do not dive with it. ⚠ WARNING In particular, unless you fully understand the implications of certain features, you should not use them. • IMPORTANT WARNINGS 5 • PART I • 1. INTRODUCTION 1.1. GLOSSARY AIR:Air dive AVG:Average depth, calculated from the beginning of the dive. CNS:Central Nervous System. CNS% is used to quantify toxic effects of oxygen. DTIME:Dive time, the whole time spent below a depth of 1.2m/4ft. DESAT:Desaturation time. The time needed for the body to eliminate the nitrogen taken up during diving. Gas switching:The act of changing from one breathing gas to another. GF: Gradient factor Gradient Factor:Reduction of Bühlmann’s original value of maximum tolerated inert gas pressure. Max depth:Maximum depth attained during the dive. MOD: Maximum Operating Depth. This is the depth at which the partial pressure of oxygen (ppO 2 ) reaches the maximum allowed level (ppO 2 max). Diving deeper than the MOD will expose the diver to unsafe ppO 2 levels. Multigas:Refers to a dive in which more than one breathing gas is used. Nitrox:A breathing mix made of oxygen and nitrogen, with the oxygen concentration being 21% or higher. No deco time: This is the time that you can stay at the current depth and still make a direct ascent to the surface without having to perform mandatory decompression stops. NO-FLY:Minimum amount of time the diver should wait before taking a plane. O 2 :Oxygen. O 2 %:Oxygen concentration used by the computer in all calculations. ppO 2 : Partial pressure of oxygen. This is the pressure of the oxygen in the breathing mix. It is a function of depth and oxygen concentration. A ppO 2 higher than 1.6bar is considered dangerous. ppO 2 max:The maximum allowed value for ppO 2 . Together with the oxygen concentration it defines the MOD. S. I.:Surface interval, the time that has elapsed since the end of the dive. Switch depth:The depth at which the diver plans to switch to a higher oxygen concentration mix while using the multigas option. TTS: Time To Surface, the time it takes to perform the ascent from your current depth to the surface in a decompression dive, including all decompression stops. 6 1.2. OPERATING MODES The functions of the Puck 4 computer can be grouped into two categories, each correspondi…

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Mares Spa Via Salita Bonsen, 4 16035 Rapallo GE Italy Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date:09-28-2023 Ref:Attestation Statements Part 2.911(d)(5)(i)Filing FCC ID:2AIKSPUCK4 [Mares Spa] (“theapplicant”) 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, (Applicantsignature) (GiovanniDistefano)

Mares Spa Via Salita Bonsen, 4 16035 Rapallo GE Italy Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date:09-28-2023 Ref:Attestation Statements Part 2.911(d)(5)(ii)Filing FCC ID:2AIKSPUCK4 [Mares Spa] (“the applicant”) certifies that, as of the date of the filing of the application, the applicantis notidentified on the Covered List as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Giovanni Distefano)

Mares Spa Via Salita Bonsen, 416035Rapallo GEItaly 2.911 (d)(7)USA Agentv1.2 Section 2.911(d)(7) USA Agent for Service of Process FCC ID: 2AIKSPUCK4 2.911(d)(7) USADesignatedAgent for Service of Process We, [Mares Spa] (“the applicant”) designate [MaresDiving Division of HEAD USA Inc.] NOTE1 for the purpose of accepting service of process on behalf of the applicant. Applicantconsent:We Acknowledge our consent to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address of the designated agent and acknowledge our acceptance of ourobligation to maintain an agent for service of process in the United States for no less than one year after either the grantee haspermanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Agent obligation:We Acknowledge our obligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email addressfor no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. USA Agent Company name:Mares Diving Division of HEAD USA Inc. Address:902 Clint Moore Road, Suite 208 Boca Raton, FL 33487United States FRN:0034211581 Contact Name:Steven Lamphear Telephone No:(800) 874-3236 Email:[email protected] Applicant Company name:Mares Spa Address:Via Salita Bonsen, 4 16035Rapallo GE Italy FRN:0025609975 Contact Name:GiovanniDistefano Telephone No:+39 01852011 Email:[email protected] Signature:Signature: Date:2023-09-28Date:2023-09-28 NOTE 1: Anapplicant located in the United States may designate itself as the agent for service of process. Reference; Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-communications-supply-c hain-through-the

Mares Spa Via Salita Bonsen, 4 16035 Rapallo GE Italy Agent Authorization Company: Mares Spa Address: Via Salita Bonsen, 4 16035 Rapallo GE Italy Product Name: PUCK 4 Model Number(s): PUCK4 Product Description: PUCK 4 We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2023-10-24 Name: Giovanni Distefano Company: Mares Spa

Mares Spa Via Salita Bonsen, 416035Rapallo GEItaly Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date:2023-09-28 Subject; Request for Confidentiality FCC ID:2AIKSPUCK4 To Whom It May Concern, Pursuant to the provisions ofthe Commission’s rules Title 47Sections§0.457 and§0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documentsfrom public disclosure indefinitely. These documents contain detailed system and equipment descriptions andare considered as proprietary information in operation of the equipment. The public disclosureofthesedocuments might be harmful to our companyand would give competitorsan unfair advantage in the market. Schematic Diagram Block Diagram PartsList Operational Description Tune-up Procedure Inadditional 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 requestShort Term Confidentialityofthe following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For45days, pursuant toPublic Notice DA 04-1705. OR For 180 dayspursuanttoKDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondenceduringthecertification review process cannot be granted asconfidential documents and thisinformation will be available for public review once the grant of equipment authorization is issued. Sincerely Contact person:GiovanniDistefano

Report No.: AGC15705230874AP02 Page 1 of 4 EXTERNAL PHOTOS All VIEW OF EUT TOP VIEW OF EUT Report No.: AGC15705230874AP02 Page 2 of 4 BOTTOM VIEW OF EUT FRONT VIEW OF EUT Report No.: AGC15705230874AP02 Page 3 of 4 BACK VIEW OF EUT LEFT VIEW OF EUT Report No.: AGC15705230874AP02 Page 4 of 4 RIGHT VIEW OF EUT ****************************************End of Report*************************************

FCC ID Label Location 3mm&20mm FCC ID: 2AIKSPUCK4

Report No.: AGC15705230874AP02 Page 1 of 4 INTERNAL PHOTOS OPEN VIEW OF EUT (FIGURE 1) BATTERY OF EUT Report No.: AGC15705230874AP02 Page 2 of 4 OPEN VIEW OF EUT (FIGURE 3) INTERNAL VIEW OF EUT (FIGURE 1) Report No.: AGC15705230874AP02 Page 3 of 4 INTERNAL VIEW OF EUT (FIGURE 2) INTERNAL VIEW OF EUT (FIGURE 3) Report No.: AGC15705230874AP02 Page 4 of 4 INTERNAL VIEW OF EUT (FIGURE 4) INTERNAL VIEW OF EUT (FIGURE 5) ****************************************End of Report************************************* BT Antenna

Page 1 of 37 SAR Test Report Report No.: AGC15705230874FH01 FCC ID : 2AIKSPUCK4 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : PUCK 4 BRAND NAME : MARES MODEL NAME : PUCK4 APPLICANT : MARES SPA DATE OF ISSUE : Sep. 28, 2023 STANDARD(S) : IEEE Std. 1528:2013 FCC 47 CFR Part 2§2.1093 IEEE Std C95.1 ™-2005 REPORT VERSION : V1.0 Attestation of Global Compliance(Shenzhen) Co., Ltd. Report No.: AGC15705230874FH01 Page 2 of 37 Report Revise Record Report Version Revise Time Issued Date Valid Version Notes V1.0 / Sep. 28, 2023 Valid Initial Release Report No.: AGC15705230874FH01 Page 3 of 37 Test Report Certification Applicant Name MARES SPA Applicant Address VIA SALITA BONSEN, 4 16035 RAPALLO (GE) ITALY Manufacturer Name MARES SPA Manufacturer Address VIA SALITA BONSEN, 4 16035 RAPALLO (GE) ITALY Factory Name MARES SPA Factory Address VIA SALITA BONSEN, 4 16035 RAPALLO (GE) ITALY Product Designation PUCK 4 Brand Name MARES Test Model PUCK4 Series Model(s) N/A Difference Description N/A EUT Voltage DC 3.0 V by battery Applicable Standard IEEE Std. 1528:2013; FCC 47 CFR Part 2§2.1093; IEEE Std C95.1 ™-2005; Date of receipt of test item Aug. 23, 2023 Test Date Sep. 19, 2023 Report Template AGCRT-US-Bluetooth/SAR (2021-04-20) Note: The test results of this report relate only to the tested sample identified in this report. Prepared By Thea Huang (Project Engineer) Sep. 28, 2023 Reviewed By Calvin Liu (Reviewer) Sep. 28, 2023 Approved By Max Zhang (Authorized Officer) Sep. 28, 2023 Report No.: AGC15705230874FH01 Page 4 of 37 TABLE OF CONTENTS 1. SUMMARY OF MAXIMUM SAR VALUE ......................................................................................................... 5 2. GENERAL INFORMATION ............................................................................................................................... 6 2.1. EUT DESCRIPTION......................................................................................................................................... 6 3. SAR MEASUREMENT SYSTEM ........................................................................................................................ 7 3.1. THE SATIMO SYSTEM USED FOR PERFORMING COMPLIANCE TESTS CONSISTS OF FOLLOWING ITEMS .................. 7 3.2. COMOSAR E-FIELD PROBE .......................................................................................................................... 8 3.3. ROBOT .......................................................................................................................................................... 8 3.4. VIDEO POSITIONING SYSTEM .......................................................................................................................... 9 3.5. DEVICE HOLDER ............................................................................................................................................ 9 3.6. ELLI39 PHANTOM ........................................................................................................................................ 10 4. SAR MEASUREMENT PROCEDURE .............................................................................................................. 11 4.1. SPECIFIC ABSORPTION RATE (SAR) .............................................................................................................. 11 4.2. SAR MEASUREMENT PROCEDURE ................................................................................................................ 12 4.3. RF EXPOSURE CONDITIONS ......................................................................................................................... 14 5. TISSUE SIMULATING LIQUID ......................................................................................................................... 15 5.1. THE COMPOSITION OF THE TISSUE SIMULATING LIQUID..................................................................................... 15 5.2. TISSUE DIELECTRIC PARAMETERS FOR HEAD AND BODY PHANTOMS ............................................................... 15 5.3. TISSUE CALIBRATION RESULT ....................................................................................................................... 16 6. SAR SYSTEM CHECK PROCEDURE ........................................................................................................... 17 6.1. SAR SYSTEM CHECK PROCEDURES ............................................................................................................. 17 6.2. SAR SYSTEM CHECK ................................................................................................................................... 18 7. EUT TEST POSITION ..................................................................................................................................... 19 7.1. TEST POSITION ............................................................................................................................................ 19 8. SAR EXPOSURE LIMITS ............................................................................................................................... 20 9. TEST FACILITY .............................................................................................................................................. 21 10. TEST EQUIPMENT LIST .............................................................................................................................. 22 11. MEASUREMENT UNCERTAINTY ................................................................................................................ 23 12. CONDUCTED POWER MEASUREMENT ..................................................................................................... 26 13. TEST RESULTS ........................................................................................................................................... 27 13.1. SAR TEST RESULTS SUMMARY............................................…

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CALIBRATION DATA PROBE CALIBRATION DATA DIPOLE CALIBRATION DATA

Page 1 of 68 FCC Test Report Report No.: AGC15705230874FR01 FCC ID : 2AIKSPUCK4 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : PUCK 4 BRAND NAME : MARES MODEL NAME : PUCK4 APPLICANT : MARES SPA DATE OF ISSUE : Sep. 22, 2023 STANDARD(S) : FCC Part 15 Subpart C §15.247 REPORT VERSION : V1.0 Attestation Of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC15705230874FR01 Page 2 of 68 Report Revise Record Report Version Revise Time Issued Date Valid Version Notes V1.0 / Sep. 22, 2023 Valid Initial Release Report No.: AGC15705230874FR01 Page 3 of 68 Table of Contents 1. General Information ........................................................................................................................................ 5 2. Product Information ........................................................................................................................................ 6 2.1 Product Technical Description ..................................................................................................................... 6 2.2 Test Frequency List ..................................................................................................................................... 6 2.3 Related Submittal(S) / Grant (S) ................................................................................................................. 7 2.4 Test Methodology......................................................................................................................................... 7 2.5 Special Accessories ..................................................................................................................................... 7 2.6 Equipment Modifications ............................................................................................................................. 7 2.7 Antenna Requirement .................................................................................................................................. 7 3. Test Environment ............................................................................................................................................ 8 3.1 Address of the Test Laboratory .................................................................................................................... 8 3.2 Test Facility .................................................................................................................................................. 8 3.3 Environmental Conditions ........................................................................................................................... 9 3.4 Measurement Uncertainty ........................................................................................................................... 9 3.5 List of Equipment Use ............................................................................................................................... 10 4.System Test Configuration ............................................................................................................................ 12 4.1 EUT Configuration ..................................................................................................................................... 12 4.2 EUT Exercise ............................................................................................................................................. 12 4.3 Configuration of Tested System ................................................................................................................ 12 4.4 Equipment Used In Tested System ........................................................................................................... 12 4.5 Summary of Test Results ........................................................................................................................... 13 5. Description of Test Modes ........................................................................................................................... 14 6. Duty Cycle Measurement ............................................................................................................................. 15 7. RF Output Power Measurement .................................................................................................................. 16 7.1 Provisions Applicable ................................................................................................................................. 16 7.2 Measurement Procedure ........................................................................................................................... 16 7.3 Measurement Setup (Block Diagram of Configuration) ............................................................................ 16 7.4 Measurement Result ................................................................................................................................. 17 8. 6dB Bandwidth Measurement ...................................................................................................................... 21 8.1 Provisions Applicable ................................................................................................................................. 21 8.2 Measurement Procedure ........................................................................................................................... 21 8.3 Measurement Setup (Block Diagram of Configuration) ............................................................................ 21 8.4 Measurement Results ................................................................................................................................ 22 9. Power Spectral Density Measurement ........................................................................................................ 29 9.1 Provisions Applicable .......................................................................................................................…

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Report No.: AGC15705230874AP01 Page 1 of 2 TEST SETUP PHOTOS RADIATED EMISSION TEST SETUP BELOW 1GHz RADIATED EMISSION TEST SETUP ABOVE 1GHz Report No.: AGC15705230874AP01 Page 2 of 2 RF CONDUCTED TEST SETUP ****************************************End of Report*************************************