WDUWDV0900Remote Control

WET/DRY VACUUM CLEANER OPERATOR’S MANUAL 56-VOLT LITHIUM-ION WET/DRY VACUUM CLEANER MODEL NUMBER C1013/WDV0900XXX WARNING: To reduce the risk of injury, the user must read and understand the Operator’s Manual before using this product. Save these instructions for future reference. Model difference: Model WDV0900XXX is identical to model C1013 except for the model number. Note: The first “X” indicates “-”, “_” or “.” or even omitted; the second and third “X” stands for the random combination from alphabet A to Z or omitted. SAFETY SYMBOLS The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols and the explanations with them deserve your careful attention and understanding. The symbol warnings do not, by themselves, eliminate any danger. The instructions and warnings they give are no substitutes for proper accident prevention measures. WARNING: Be sure to read and understand all safety instructions in this Operator’s Manual, including all safety alert symbols such as “DANGER”, “WARNING”, and “CAUTION” before using this machine. Failure to follow all instructions listed below may result in electric shock, fire, and/or serious personal injury. The definitions below describe the level of severity for each signal word. Please read the manual and pay attention to these symbols. This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury. CAUTION, used with the safety alert symbol, indicates a hazardous situation which, if not avoided, will result in minor or moderate injury. DAMAGE PREVENTION AND INFORMATION MESSAGES These inform the user of important information and/or instructions that could lead to equipment or other property damage if they are not followed. Each message is preceded by the word “NOTICE”, as in the example below: NOTICE: Equipment and/or property damage may result if these instructions are not followed. SYMBOLS This page depicts and describes symbols that may appear on this product. Read, understand, and follow all instructions on the product before attempting to assemble and operate. Safety Alert Precautions that involve your safety Read & Understand Operator’s Manual To reduce the risk of injury, user must read and understand operator’s manual before using this product. Disconnect battery before maintenance Alerts user to disconnect battery before maintenance. IP... Ingress Protection (IP) Rating Classifies the degree of protection provided by an enclosure, for electrical equipment. GAL Gallon Volume CFM Cubic Feet Per Minute Air Volume in. H 2 O Inch Water Column Pressure °F Degrees Fahrenheit Temperature °C Degrees Celsius Temperature lbs Pounds Weight kg Kilogram Weight SAFETY INSTRUCTIONS FOR WET/DRY VACUUM CLEANER WARNING: Read all safety warnings and instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.  The appliance is intended for household use only.  Do not leave the appliance when the battery pack is installed on the appliance. Remove the battery pack from the appliance when not in use or before servicing.  Do not allow to be used as a toy. Close attention is necessary when used by or near children.  Use only as described in this manual. Use only manufacturer’s recommended attachments.  If appliance is not working as it should, has been dropped, damaged, left outdoors, or dropped into water, return it to a service center.  Do not handle appliance with wet hands.  Do not put any object into openings. Do not use with any opening blocked; keep free of dust, lint, hair, and anything that may reduce air flow.  Keep hair, loose clothing, fingers, and all parts of body away from openings and moving parts.  Turn off all controls before removing the battery pack.  Use extra care when cleaning on stairs.  Do not use to pick up flammable or combustible liquids, such as gasoline, or use in areas where they may be present.  Do not pick up anything that is burning or smoking, such as cigarettes, matches, or hot ashes. To reduce the risk of health hazards from vapors or dusts, do not vacuum any toxic materials.  Do not use this vacuum cleaner for EPA Lead Based Paint Renovation, Repair and Painting Program (RRP), where lead may be present. Using this vacuum cleaner for EPA RRP program may cause health and environmental hazards.  Do not use to vacuum hazardous or toxic substances or dusts, e.g., asbestos. The standard filter is not able to capture all hazardous particles, which may cause health hazards.  Do not use to vacuum concrete dust and/or other materials that include silica. The filter is not able to capture all silica dust, which may cause health hazards.  Do not use or store near hazardous materials.  Do not use without dust bag and/or filters in place.  Prevent unintentional starting. Ensure the switch is in the off-position before connecting to battery pack, picking up or carrying the appliance. Carrying the appliance with your finger on the switch or energizing appliance that has the switch on invites accidents.  Disconnect the battery pack from the appliance before making any adjustments, changing accessories, or storing appliance. Such preventive safety measures reduce the risk of starting the appliance accidentally.  Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.  Use the appliance only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.  When battery pack is not in use, keep it away from other metal objects, like paper clips,…

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CFR 47 §2.911 (d)(5) Attestation Date: 08-14-2023 FCC ID: WDUWDV0900 Grantee FRN: 0028790434 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA 1. Nanjing Chervon Industry Co.,Ltd (“the applicant”) 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. 2. Nanjing Chervon Industry Co.,Ltd (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment and is not an affiliate or subsidiary of an entity identified on the Covered List. Sincerely yours, Name: Shuli Liu Job Title: ENGINEERING MANAGEMENT DEPT. Company Name: Nanjing Chervon Industry Co.,Ltd

Date: 8/14/2023 Federal Communications Commissions Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 RE: CFR 47 §2.911 (d)(7) FCC US Agent Letter of Attestation FCC ID: WDUWDV0900 Grantee FRN: 0028790434 To whom it may concern: FCC US Agent Agent Company Name: Chervon North America Inc. Agent Contact Name: Huijing ye Agent US Address: 1203 East Warrenville Road NAPERVILLE IL 60563 United States Agent Email Address: [email protected] Note: Chervon North America Inc. does not do any other business with the FCC. This letter is to confirm that we have ac cepted the responsibility to act as US Agent on behalf of Nanjing Chervon Industry Co.,Ltd (“the applicant”) for the above referenced FCC ID. We are aware of the requirements and responsibilities of the applicant’s agent for service of process as outlined in the FCC section 2.911(d)(7) and Report and Order FCC 22-84 paragraph 63. Sincerely, Authorized Agent Contact Person Name: Huijing ye Agent contact Job Title: Engineer Agent Company name: Chervon North America Inc.

Date: 7/3/2023 Federal Communications Commissions Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 RE: CFR 47 §2.911 (d)(7) Agent Designation Attestation FCC ID: WDUWDV0900 Grantee FRN: 0028790434 Nanjing Chervon Industry Co.,Ltd (“the applicant”) as required by section 2.911(d)(7), designates the following agent, located in the United States, for purposes of acting as the applicant’s agent for service of process. The applicant acknowledges that they will maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility under CFR 47 §2.929(c) to inform the FCC whenever the agent information changes. U.S. Agent Information: Agent Company Name: Chervon North America Inc. Agent Contact Name: Huijing ye Agent US Address: 1203 East Warrenville Road NAPERVILLE IL 60563 United States Agent Email Address: [email protected] Note: Chervon North America Inc. does not do any other business with the FCC. Sincerely yours, Name: Shuli Liu Job Title: ENGINEERING MANAGEMENT DEPT. Company Name: Nanjing Chervon Industry Co.,Ltd

Nanjing Chervon Industry Co.,Ltd Date: 08/14/2023 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 To whom it may concern: I, the undersigned, hereby authorize UL Verification Services Inc. to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by UL Verification Services Inc. on our behalf shall have the same effect as acts of our own. I, 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). In authorizing UL Verification Services Inc . as our representative, we still recognize that we are responsible to: a) comply with the relevant provisions of the certification program; b) make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints; c) make claims regarding certification only in respect of the scope for which certification has been granted; d) do not use our product certification in such a manner as to bring the Certification Division into disrepute and not make any statement regarding our product certification which the Certification Division may consider misleading or unauthorized; e) upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division; f) use certification only to indicate the products are certified as being in conformity with specified standards; g) endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner; h) ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division; i) keep a record of all complaints made known to us relating to the product’s compliance with requirements of the relevant standard and to make these records available to the when requested; j) take appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification; k) document the actions taken. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signed by: Company Name: Nanjing Chervon Industry Co.,Ltd Contact Name: Shuli Liu Title of Person：ENGINEERING MANAGEMENT DEPT. Address: 529 Jiang-jun Rd.,Jiangning Economic&Technical Development Zone, Nanjing, Jiangsu 211106 P.R. China.

Nanjing Chervon Industry Co.,Ltd Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Request for Confidentiality FCC ID: WDUWDV0900 To Whom It May Concern: Pur suant to the provisions of Sections 0.457 and 0.459 of the Commission’s rules (47 CFR §§ 0.457, 0.459), we are requesting the Commission to withhold the following attachments as confidential document from public disclosure indefinitely. Schematic Diagram Block Diagram Theory of Operation Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Best Regards Company Name: Nanjing Chervon Industry Co.,Ltd Contact Name: Shuli Liu Title of Person：ENGINEERING MANAGEMENT DEPT. Address: 529 Jiang-jun Rd.,Jiangning Economic&Technical Development Zone, Nanjing, Jiangsu 211106 P.R. China. Date:2023/08/ 14

Appendix I External Photographs Page 2 of 5 UL-CCIC COMPANY LIMITED This report shall not be reproduced except in full, without the written approval of UL-CCIC COMPANY LIMITED. All View of EUT Top View of EUT Page 3 of 5 UL-CCIC COMPANY LIMITED This report shall not be reproduced except in full, without the written approval of UL-CCIC COMPANY LIMITED. Bottom View of EUT Front View of EUT Page 4 of 5 UL-CCIC COMPANY LIMITED This report shall not be reproduced except in full, without the written approval of UL-CCIC COMPANY LIMITED. Back View of EUT Left View of EUT Page 5 of 5 UL-CCIC COMPANY LIMITED This report shall not be reproduced except in full, without the written approval of UL-CCIC COMPANY LIMITED. Right View of EUT

Note: This would be a plastic label with a permanent adhesive. La bel and label loca�on

Appendix II Internal Photographs Page 2 of 3 UL-CCIC COMPANY LIMITED This report shall not be reproduced except in full, without the written approval of UL-CCIC COMPANY LIMITED. Open View of EUT Internal View of EUT-1 Page 3 of 3 UL-CCIC COMPANY LIMITED This report shall not be reproduced except in full, without the written approval of UL-CCIC COMPANY LIMITED. Internal View of EUT-2 Antenna and RF Module Location

FCC ID: WDUWDV0900 According to KDB 447498 D01 General RF Exposure Guidance v06, section 4.3.1 At 100 MHz to 6 GHz and for test separation distances ≤ 50 mm, the SAR test exclusion threshold is determined according to the following [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] x [√f(GHz)] ≤ 3.0 1. SAR test exclusion threshold Frequency: 433.92 MHz (min. separation distances = 5 mm) SAR test exclusion thresholds (5 mm) = 3 x 5 / (√ 0.43392) = 22.77 mW Max. Tune-up Tolerance (mW) SAR Test Exclusion Thresholds (5mm) (mW) 1 22.77 Calculation Value: 1 (mW) / 5 (mm) x √ 0.43392 = 0.132 So, Calculation value ≤ 3.0 Remark: -Based on field strength 70.17 dBuV/m at 3m transmit power(eirp) of the device was calculated as 0.003 mW using free space formula. -Max. conducted power 0.003 mW is closet 1 mW, so 1 mW was calculated. -When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. 2. Conclusion: No SAR is required.

The results reported herein have been performed in accordance with the laboratory’s terms of accreditation. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report apply to the test sample(s) mentioned above at the time of the testing period only and are not to be used to indicate applicability to other similar products. CFR 47 FCC PART 15 SUBPART C ISED RSS-210 ISSUE 10 TEST REPORT For Remote Control MODEL NUMBER: AVR0900 PROJECT NUMBER: 4790928826 REPORT NUMBER: 4790928826-1 FCC ID: WDUWDV0900 IC: 25424-WDV0900 HVIN: AVR0900 ISSUE DATE: Aug. 22, 2023 Prepared for Nanjing Chervon Industry Co., Ltd Prepared by UL-CCIC COMPANY LIMITED No. 2, Chengwan Road, Suzhou Industrial Park, Suzhou 215122, China Tel: +86 512-6808 6400 Fax: +86 512-6808 4099 Website: www.ul.com Report No.: 4790928826-1 Page 2 of 37 UL-CCIC COMPANY LIMITED This report shall not be reproduced except in full, without the written approval of UL-CCIC COMPANY LIMITED. Revision History Rev. Issue Date Revisions Revised By V0 08/22/2023 Initial Issue Report No.: 4790928826-1 Page 3 of 37 UL-CCIC COMPANY LIMITED This report shall not be reproduced except in full, without the written approval of UL-CCIC COMPANY LIMITED. Summary of Test Results Clause Test Items FCC/ISED Rules Test Results 1 Transmitter Timeout CFR 47 FCC §15.231 (a) (1) ISED RSS-210 Annex A.1.1 Pass 2 20 dB Bandwidth and 99 % Occupied Bandwidth CFR 47 FCC §15.231 (c) ISED RSS-210 Annex A.1.3 Pass 3 Radiated Emission CFR 47 FCC §15.231 (b)(e) CFR 47 FCC §15.205 and §15.209 RSS-210 Annex A.1.2 RSS-GEN Clause 8.9 RSS-GEN Clause 8.10 Pass 4 Conducted Emission Test for AC Power Port CFR 47 FCC §15.207 RSS-GEN Clause 8.8 N/A (See Note 1) 5 Antenna Requirement CFR 47 FCC §15.203 ISED RSS-Gen Clause 6.8 Pass Note 1: The product was powered by battery, so this test item is no need to test. Note 2: The measurement result for the sample received is < Pass > according to < ANSI C63.10-2013, FCC CFR 47 Part 2, FCC CFR 47 Part 15C, ISED RSS-210 Issue 10 and ISED RSS-Gen Issue 5 > when < Accuracy Method > decision rule is applied. Report No.: 4790928826-1 Page 4 of 37 UL-CCIC COMPANY LIMITED This report shall not be reproduced except in full, without the written approval of UL-CCIC COMPANY LIMITED. TABLE OF CONTENTS 1. ATTESTATION OF TEST RESULTS ................................................................................. 5 2. TEST METHODOLOGY ..................................................................................................... 6 3. FACILITIES AND ACCREDITATION ................................................................................. 6 4. CALIBRATION AND UNCERTAINTY ................................................................................ 7 4.1. MEASURING INSTRUMENT CALIBRATION ............................................................... 7 4.2. MEASUREMENT UNCERTAINTY................................................................................ 7 5. EQUIPMENT UNDER TEST ............................................................................................... 8 5.1. DESCRIPTION OF EUT ............................................................................................... 8 5.2. MAXIMUM FIELD STRENGTH ..................................................................................... 8 5.3. TEST CHANNEL CONFIGURATION ............................................................................ 8 5.4. DESCRIPTION OF AVAILABLE ANTENNAS ............................................................... 9 5.5. TEST ENVIRONMENT ................................................................................................. 9 5.6. DESCRIPTION OF TEST SETUP ...............................................................................10 5.7. MEASURING INSTRUMENT AND SOFTWARE USED ..............................................11 6. ANTENNA PORT TEST RESULTS ...................................................................................12 6.1. ON TIME AND DUTY CYCLE ......................................................................................12 6.2. TANSMITTER TIMEOUT .............................................................................................15 6.3. 20dB BANDWIDTH .....................................................................................................18 7. RADIATED TEST RESULTS .............................................................................................20 7.1. FIELD STRENGTH OF INTENTIONAL EMISSIONS ...................................................28 7.2. SPURIOUS EMISSIONS (1~6GHz) .............................................................................30 7.3. SPURIOUS EMISSIONS (0.03~1 GHz) .......................................................................32 7.4. SPURIOUS EMISSIONS BELOW 30M .......................................................................34 8. ANTENNA REQUIREMENTS ............................................................................................37 Report No.: 4790928826-1 Page 5 of 37 UL-CCIC COMPANY LIMITED This report shall not be reproduced except in full, without the written approval of UL-CCIC COMPANY LIMITED. 1. ATTESTATION OF TEST RESULTS Applicant Information Company Name: Nanjing Chervon Industry Co., Ltd Address: No. 529 JIANG-JUN Road Jiangning Economic & Technical Development Zone, Nanjing, 211106 Jiangsu, P.R. China Manufacturer Information Company Name: Nanjing Chervon Industry Co., Ltd Address: No. 529 JIANG-JUN Road Jiangning Economic & Technical Development Zone, Nanjing, 211106 Jiangsu, P.R. China Factory Information Company Name: SKYBEST ELECTRIC APPLIANCE (SUZHOU) CO., LTD Address: No. 18 Huahong Street, Suzhou Industrial Park, Suzhou City, Jiangsu Province, China EUT Description Product Name: Remote Control Model Name: AVR0900 Additional No.: / Sample Number: 6261510 Data of Receipt Sample: Jul. 20, 2022 Test Date: Jul. 20, 2022~ Aug. 2…

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Appendix III Setup Photographs RADIATED RF MEASUREMENT SETUP (9kHz ~ 30 MHz) RADIATED RF MEASUREMENT SETUP (30MHz ~ 1 GHz) RADIATED RF MEASUREMENT SETUP (30MHz ~ 1 GHz - X axis) RADIATED RF MEASUREMENT SETUP (30MHz ~ 1 GHz - Y axis) RADIATED RF MEASUREMENT SETUP (30MHz ~ 1 GHz - Z axis) RADIATED RF MEASUREMENT SETUP (ABOVE 1 GHz - X axis) RADIATED RF MEASUREMENT SETUP (ABOVE 1 GHz - Y axis) RADIATED RF MEASUREMENT SETUP (ABOVE 1 GHz - Z axis)