2A88P-1001Wireless cooking thermometer

SETUP A. Charge Charge Predictive Thermometer. The charger light will turn green when ready (20 min). The Predictive Thermometer turns on automatically when you remove it from the charger, and turns off when you put it back. B. Link Linking a mobile device Charge Predictive Thermometer. The charger light will turn green when ready (20 min). Launch the app and follow the onscreen instructions. FEATURES Instant-Read Mode Mobile device Insert thermometer into the food. The app will swiftly display the temperature at the tip [about 1 sec]. Combustion Timer Press temp to enter Temperature Mode. Insert thermometer into the food. Warning: Don’t measure stuff above boiling! The timer will swiftly display the temperature at the tip [about 1 sec]. FEATURES CONTINUED Linking the Combustion Timer Press temp to turn timer on. Hold the thermometer and timer together. Wait for the “beep.” The icons will stop blinking. Linked! For multiple thermometers, link one at a time. Or scan the QR code to download. Skip these instructions! Scan this code to watch a short video that shows you what you need to know to get started. Or visit: combustion.inc/start Combustion Inc. Quick Start Guide Predictive Thermometer Charging type Charging time Battery life Designed by Combustion Inc., in Seattle WA, USA. Patent Pending. Assembled in China. All rights reserved. The “Combustion, Inc” logo is owned by Combustion, LLC. Conçu par Combustion Inc., par Seattle, WA, USA. Brevet déposé. Assemblé en Chine. Tous droits réservés. Le logo de Combustion Inc. sont des marques de commerce de Combustion, Inc. USB-C 15 min 24+ hours charging status LED 1 2 Wireless cooking thermometer 4. Predict Be patient. After cooking is about 1/3 done, a ready in countdown will appear. That’s the magic number! 5. Rest When ready in hits 00:00, an alarm will sound. Remove the food from the heat source. Wait. The thermometer will detect the drop in ambient temp. A second countdown will start, labeled rest for. This tells you exactly how long your food needs to rest to finish cooking. When rest for hits 00:00, it’s time to eat. It’s fine if the pointy end goes past the food’s center. The Predictive Thermom- eter always finds the True Core™ temp. 100° 212° 300° 575° Celsius Fahrenheit Max temp FEATURES Predictive Cooking 1. Insert Insert the Predictive Thermometer into food. Be sure the thermometer reaches its minimum insertion line (halfway up). 3. Cook Apply heat to food. The Predictive Thermometer works great with many techniques and appliances: oven-baked, pan-roasted, grilled, smoked, slow-cooked, deep-fried, air-fried, sous vide and more. Warning: Keep it out of pressure cookers, broasters, instapots, and microwaves. 2. Set Mobile device Follow onscreen instructions. Combustion Timer Press temp on the Predictive Timer. Use m + s – buttons to set your target core temp (cooking to) for perfect doneness. Core ≈ internal Press start stop to toggle rest for predictions. 6. Enjoy What’re you waiting for? That smells delicious! Complies with IMDA Standards DB123456 CAUTION The user is cautioned that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s) and Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device. L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : (1) L’appareil ne doit pas produire de brouillage; (2) L’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement. NOTE This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: (a) Reorient or relocate the receiving antenna, (b)Increase the separation between the equipment and receiver, (c) Connect the equipment into an outlet on a circuit different from that to which the receiver is connected, (d) Consult the dealer or an experienced radio/TV technician for help. FCC & IC RADIATION EXPOSURE STATEMENT This equipment complies with FCC and Canada radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. DÉCLARATION D’IC SUR L’EXPOSITION AUX RADIATIONS Cet équipement est conforme aux limites d’exposition aux radiations définies par le Canada pour des environnements non contrôlés. Cet émetteur ne doit pas être installé au même endroit ni utilisé avec une autre antenne ou un autre émetteur. The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Combustion, Inc. is under license. Other trademarks and trade names are those of their respective owners.

Combustion LLC (DBA Combustion Inc) Authority letter FCC Date: 11/3/2022 TO:Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: FCC ID: 2A88P-1001 To whom it may concern: We, the undersigned, hereby authorize SGS-CSTC Standards Technical Services Co., Ltd. (SGS) Guangzhou branch and Kobe Jian in SGS-CSTC Standards Technical Services Co., Ltd. (SGS) Guangzhou branch to act on our behalf in all manners relating to application for equipment authorization with respect to the FCC ID above, including signing of all documents relating to these matters. Any and all acts carried out by the agent on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). Where our agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by SGS North America, Inc., still resides with Combustion LLC (DBA Combustion Inc). This authorization is valid until further written notice from the applicant. Name (Printed) : Brian McCrackenTitle: Project Manager Signature: On behalf of Company: Combustion LLC (DBA Combustion Inc)

Combustion LLC (DBA Combustion Inc) Confidential letter FCC To:SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia United States From:Combustion LLC (DBA Combustion Inc) 6224 50th Ave NE Seattle , Washington , 98115 , United States Regarding:Confidentiality Request regarding application for FCC ID : 2A88P-1001 LONG TERM CONFIDENTIALITY Pursuant to 47 CFR Section 0.459 and 0.457 of the commission’s rules, the applicant hereby request confidential treatment of the documents listed below, associated with the certification application referenced above. Schematic(s) Block Diagrams Operational Descriptions The documents above contain proprietary information not released to the public. Public disclosure of this information may prove harmful to the business of the applicant. Sincerely, Name(Printed): Brian McCrackenTitle: Project Manager Signature: On behalf of Company: Combustion LLC (DBA Combustion Inc)

SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Declaration Applicant Declaration Letter Applicant Legal Business NameCombustion LLC (DBA Combustion Inc) Address6224 50th Ave NESeattle, 98115, Washington, United States Grantee Code2A88P FCC ID2A88P-1001 Authorized Contact NameBrian McCracken Contact [email protected] Contact Phone(509) 859-4222 I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare; a)in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. b)in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for: (1)labeling the equipment with the exact FCC ID as specified in this application, (2)compliance statement labeling pursuant to the applicable rules, (3)compliance of the equipment with the applicable technical rules, c)if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCC’s technical requirements. d)in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. e)in accordance with ISO17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements. (1)the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. (2)the Applicantshallmake provisions to always havea production sample available upon request by SGS, FCC and/or ISED. (3)the Applicantshall,upon request by SGS, at the Applicant’sexpense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f)neither the Applicant nor any party to the application is subject to a denial of Federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a “party” for these purposes. g)the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc.(TCB) terms and conditions. Link to CFRs:https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs:https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100:https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Applicant Signature: Date: 11/3/2022 Print Name: Brian McCracken Title: Project Manager *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database Applicant Declaration Rev:0.0

SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-02 Rev 1.1 Page: 1 of 7 Appendix External Photos for GZCR2207000907HS SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-02 Rev 1.1 Page: 2 of 7 EUT Constructional Details (EUT Photos) SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-02 Rev 1.1 Page: 3 of 7 SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-02 Rev 1.1 Page: 4 of 7 SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-02 Rev 1.1 Page: 5 of 7 SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-02 Rev 1.1 Page: 6 of 7 SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-02 Rev 1.1 Page: 7 of 7

SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-03 Rev 1.1 Page: 1 of 2 Appendix Internal Photos for GZCR2207000907HS SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-03 Rev 1.1 Page: 2 of 2 EUT Constructional Details (EUT Photos) BT ANT

Slide 1 Combustion Inc. Temperature Probe: Antenna Specification Version Date Description Report 1 10-21-2022 Description of BLE Antenna Configuration JCM-EM: Joseph C. Modro Probe External View Slide 2 Charge Contact Assembly - Steel Probe Handle - Alumina Probe Frame - Steel • Antenna PCB + Mechanical Assembly in Handle [Handle view transparent] Antenna – Probe Internal View Slide 3 Antenna Traces – multi-layer Cu in PCB Feed/Antenna Trace Mesh Ground • PCB Thickness: 1mm Charge Contact Assembly – Steel Summary of Antenna Properties Slide 4 • Antenna Type: Integrated PCB and Metal Contact Antenna • Peak Antenna Gain: 3.2dBi Max • Frequency Range: 2.402GHz – 2.48GHz [BLE] • Antenna Dimensions: ref. previous slide [3]: PCB trace 8.1mm x 2.83mm x 1mm [height] Frequency Efficiency Gain. dB 2402 0.47 3.01 2404 0.48 3.04 2406 0.48 3.16 2408 0.48 3.14 2410 0.49 3.12 2412 0.50 3.15 2414 0.50 3.19 2416 0.49 3.18 2418 0.50 3.17 2420 0.50 3.18 2422 0.52 3.14 2424 0.51 3.15 2426 0.52 3.15 2428 0.53 3.05 2430 0.47 3.20 2432 0.47 3.15 2434 0.48 3.18 2436 0.48 3.09 2438 0.48 3.17 2440 0.49 3.15 2442 0.49 3.14 Summary of Antenna Properties Slide 5 Frequency Efficiency Gain. dB 2444 0.50 3.17 2446 0.50 3.06 2448 0.50 3.14 2450 0.52 3.12 2452 0.52 3.05 2454 0.51 3.14 2456 0.51 3.17 2458 0.51 3.15 2460 0.51 3.09 2462 0.52 3.17 2464 0.52 3.09 2466 0.53 3.09 2468 0.53 3.14 2470 0.53 3.12 2472 0.54 3.08 2474 0.54 3.12 2476 0.54 3.00 2478 0.47 3.20 2480 0.51 3.03 • • Horizontal Vertical

SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-03 Rev 1.1 Report No.: GZCR220700090703 Page: 1 of 8 FCC ID: 2A88P-1001 Ricky Liu Manager RF EXPOSURE EVALUATION REPORT Application No.: GZCR2207000907HS Applicant: Combustion LLC (DBA Combustion Inc) Address of Applicant: 6224 50 th Ave NE Seattle WA 98115 USA Manufacturer: JDI Electronics Factory Address of Manufacturer: Sima Industrial Zone, Sima Village, Chang Ping Town, Dongguan, 523570, Guangdong, China Factory: JDI Electronics Factory Address of Factory: Sima Industrial Zone, Sima Village, Chang Ping Town, Dongguan, 523570, Guangdong, China Equipment Under Test (EUT): EUT Name: Wireless cooking thermometer Model No.: Predictive Thermometer Standard(s) : 47 CFR Part 1.1307 KDB447498D01 General RF Exposure Guidance v06 Date of Receipt: 2022-07-19 Date of Evaluation: 2022-09-09 Date of Issue: 2023-01-09 Evaluation Result: Pass* * In the configuration evaluated, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-03 Rev 1.1 Report No.: GZCR220700090703 Page: 2 of 8 Revision Record Version Report No. Date Remark 01 GZCR220700090703 2023-01-09 Original Authori zed for issue by: Lily Kuang/Project Engineer Vico Cui/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-03 Rev 1.1 Report No.: GZCR220700090703 Page: 3 of 8 2 Evaluation Summary Item Standard Method Requirement Result RF Exposure KDB447498D01 General RF Exposure Guidance v06 KDB447498D01 General RF Exposure Guidance v06 KDB447498D01 General RF Exposure Guidance v06 Pass Note: E.U.T./EUT means Equipment Under Test. Pass means the test result passed the test standard requirement, please find the detailed decision rule in the report relative section. SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-03 Rev 1.1 Report No.: GZCR220700090703 Page: 4 of 8 3 Contents Page 1 Cover Page ................................................................................................................................................ 1 2 Evaluation Summary ................................................................................................................................ 3 3 Contents .................................................................................................................................................... 4 4 General Information .................................................................................................................................. 5 4.1 Details of E.U.T. ................................................................................................................................. 5 4.2 Evaluating Location ............................................................................................................................ 5 4.3 Facility ................................................................................................................................................ 6 4.4 Deviation from Standards ................................................................................................................... 6 4.5 Abnormalities from Standard Conditions ........................................................................................... 6 5 Technical Requirements Specification ................................................................................................... 7 5.1 RF Exposure Evaluation .................................................................................................................... 7 5.1.1 Limit & Test Method ....................................................................................................................... 7 5.1.2 Conclusion ..................................................................................................................................... 7 6 EUT Constructional Details (EUT Photos) ............................................................................................. 8 SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-03 Rev 1.1 Report No.: GZCR220700090703 Page: 5 of 8 4 General Information 4.1 Details of E.U.T. Power supply: DC 2.7V Operation Frequency: 2402MHz to 2480MHz Modulation Type: GFSK Number of Channels: 40 Channel Spacing: 2MHz Hardware Version: 35B006_50A Firmware Version: V1.00 S/N: SP-2022061005 Test Software Version: Push Key Power setting level: Antenna Gain: Defaulted by client 3.2 dBi 4.2 Evaluating Location All tests were performed at: SGS-CSTC Standards Technical Services Co., Ltd., Guangzhou Branch EMC Laboratory, 198 Kezhu Road, Scientech Park, Guangzhou Economic & Technology Development District, Guangzhou, China 510663 Tel: +86 20 82155555 Fax: +86 20 82075059 No tests were sub-contracted. SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-03 Rev 1.1 Report No.: GZCR220700090703 Page: 6 of 8 4.3 Facility The facility is recognized, certified, or accredited by the following organizations: ● ACMA SGS-CSTC Standards Technical Services Co., Ltd., EMC Laboratory can also perform testing for the Australian/New Zealand Regulatory Compliance Mark (RCM). ● SGS UK(Certificate No.: 32), SGS-TUV SAARLAND and SGS-FIMKO Have approved SGS-CSTC Standards Technical Services Co., Ltd., EMC Laboratory as a supplier of EMC TESTING SERVICES and SAFETY TESTING SERVICES. ● FCC Recognized Accredited Test Firm(Registration No.: 486818) SGS-CSTC Standards Technical Services Co., Ltd., EMC Laboratory has been accredited and fully described in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files. Designation Number: CN5016, Test Firm Registration Number: 486818. ● ISED (Registration No.: 4620B, CAB identifier: CN0052) SGS-CSTC Standards Technical Services Co., Ltd., has been registered by Innovation Science and Economic Development Canada for Wireless Device T…

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SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR220700090702 Page: 1 of 48 FCC ID: 2A88P-1001 Ricky Liu Manager TEST REPORT Application No.: GZCR2207000907HS Applicant:Combustion LLC (DBA Combustion Inc) Address of Applicant:6224 50 th Ave NE Seattle WA 98115 USA Manufacturer:JDI Electronics Factory Address of Manufacturer:Sima Industrial Zone, Sima Village, Chang Ping Town, Dongguan, 523570, Guangdong, China Factory:JDI Electronics Factory Address of Factory:Sima Industrial Zone, Sima Village, Chang Ping Town, Dongguan, 523570, Guangdong, China Equipment Under Test (EUT): EUT Name:Wireless cooking thermometer Model No.: Predictive Thermometer Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2022-07-19 Date of Test: 2022-08-18 to 2022-08-29 Date of Issue: 2023-01-09 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR220700090702 Page: 2 of 48 Revision Record VersionReport No.DateRemark 01GZCR2207000907022023-01-09Original Authorized for issue by: Lily Kuang/Project Engineer Vico Cui/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR220700090702 Page: 3 of 48 2Test Summary Radio Spectrum Technical Requirement ItemStandardMethodRequirementResult Antenna Requirement 47 CFR Part 15, Subpart C 15.247 N/A 47 CFR Part 15, Subpart C 15.203 & 15.247(b)(4) Pass Radio Spectrum Matter Part ItemStandardMethodRequirementResult Conducted Peak Output Power ANSI C63.10 (2013) Section 11.9.1 47 CFR Part 15, Subpart C 15.247(b)(3) Pass Minimum 6dB Bandwidth ANSI C63.10 (2013) Section 11.8.1 47 CFR Part 15, Subpart C 15.247a(2) Pass Power Spectrum Density ANSI C63.10 (2013) Section 11.10.2 47 CFR Part 15, Subpart C 15.247(e) Pass Conducted Band Edges Measurement ANSI C63.10 (2013) Section 11.13.3.2 47 CFR Part 15, Subpart C 15.247(d) Pass Conducted Spurious Emissions ANSI C63.10 (2013) Section 11.11 47 CFR Part 15, Subpart C 15.247(d) Pass Radiated Emissions which fall in the restricted bands ANSI C63.10 (2013) Section 6.10.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Below 1GHz ANSI C63.10 (2013) Section 6.4,6.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Above 1GHz 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 6.6 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Note: E.U.T./EUT means Equipment Under Test. Pass means the test result passed the test standard requirement, please find the detailed decision rule in the report relative section. SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR220700090702 Page: 4 of 48 3Contents Page 1Cover Page...............................................................................................................................................1 2Test Summary..........................................................................................................................................3 3Contents....................................................................................................................................................4 4General Information.................................................................................................................................6 4.1Details of E.U.T.................................................................................................................................6 4.2Description of Support Units..............................................................................................................6 4.3Measurement Uncertainty.................................................................................................................6 4.4Test Location.....................................................................................................................................7 4.5Test Facility.......................................................................................................................................7 4.6Deviation from Standards..................................................................................................................7 4.7Abnormalities from Standard Conditions...........................................................................................7 5Equipment List.........................................................................................................................................8 6Radio Spectrum Technical Requirement.............................................................................................11 6.1Antenna Requirement......................................................................................................................11 6.1.1Test Requirement:.......................................................................................................................11 6.1.2Conclusion..................................................................................................................................11 7Radio Spectrum Matter Test Results...................................................................................................12 7.1Conducted Peak Output Power.......................................................................................................12 7.1.1E.U.T. Operation.........................................................................................................................12 7.1.2Test Mode Description................................................................................................................12 7.1.3Test Setup Diagram....................................................................................................................13 7.1.4Measurement Procedure and Data.................................................…

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SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-04 Rev 1.1 Page: 1 of 2 Appendix Test Setup Photo for GZCR220700090702 Test Model No.: Predictive Thermometer SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-04 Rev 1.1 Page: 2 of 2 Test Setup Photo Radiated Emissions which fall in the restricted bands & Radiated Spurious Emissions