2BANG109DMulti-function Detector

Multi-function Detector Model:KC-109D User’s Manual 1 User’s Manual Model:KC-109D Overview The KC-109D multi-function detector uses electronic signals to pass through the wall panel to detect the exact position of the metal, stud or AC live wire in the wall,it equipped with electronic level and laser linting, laser ranging function.It is mainly suitable for the installation of indoor decoration wiring, electrical equipment (air conditioners, range hoods, etc.), as well as the detection of wood furniture and wood product structures. Battery Safety Tips ● Remove the battery when cleaning this product. ● Please remove the battery when the product will not be used for a long time. ●Please install the battery correctly according to the positive and negative poles of the battery. ●Please dispose of used batteries properly: placing the batteries in a high temperature environment will cause an explosion hazard, please do not throw the batteries into fire. Wrap the battery terminals with insulating tape to prevent them from coming into direct contact with other objects. Many countries have regulations on battery disposal. Please follow the relevant local regulations. TOOL COMPONENTS A: Status indicator LED light B: Color pen segment display C: Function button D: Detect button E: Laser punched light exit hole 2 Illustration of display screen A: There are three modes under the detection function B: Detection signal indicator bar C: Data display column 1 D: Laser ranging symbol E: Data display bar 2 F: Laser ranging with different functional modes G: Countdown sign H: power indicator 3 Instructions 1. Press and hold the power button to turn on the machine, turn on the machine with a beep and enter the detection mode; 2. Use the MODE button to switch freely between the detection mode,laser distance and the laser line mode; 3. In the detection mode, use the up and down buttons to perform metal detection, AC wire detection,stud detection, and switch between three detection modes; In the laser line mode, the laser line time can be selected by pressing the up key: 10min, 30min, 60min; the down key can switch the line mode: horizontal line/vertical line/horizontal line+vertical line/off;Short press the power button to Switch the display angle mode: horizontal mode(H), vertical mode(U); the machine does not shut down during the threading process, until it automatically shuts down after the threading is completed, and can be manually shut down in the middle; In the laser distance mode, the up and down buttons can be used to switch the measurement methods: length, area, volume, triangulation, double triangulation, triangulation half height; 4. In laser wiring mode, calibration instructions for electronic level: a)In the laser line mode, if the machine Angle is found to have obvious problems, or the need for accurate measurement, need to calibrate the machine; b) Long press the MODE key until the machine makes two beeps and the horizontal and vertical mode of the display becomes the number 1; c)Place the machine on the horizontal surface, wait until the machine Angle display is stable, press the down button, wait until the machine Angle display is 0 (±0.5), then the horizontal and vertical mode of the machine changes from the number 1 to 2; d)Place the machine vertically on the horizontal surface, wait until the machine Angle display is stable, press the down button, wait until the machine's horizontal and vertical mode changes from number 2 to H/U, and the calibration is finished; 5.Instructions for use of detection: a) No matter which detection mode you are in, press and hold the side detection button on the side of the object to be calibrated. When you hear a beep, it means that the calibration is complete, and the target detection can be performed; b) In the stud detection mode, if the user finds that the signal bar on the left/right lights up during the movement detection process, it means he is approaching the target, and the target and the signal bar are in the same direction, and continue to move in that direction It can reach the top of the center of the target, at this time all the signal indicator bars are on, the led light is red and the buzzer sounds; c) In AC and Metal mode, when the user approaches the target, the signal bar lights up and slowly increases, when the machine beeps once and the signal bar all lights up, it means the machine is moving away from the target, and the user needs to return slowly Detect, and finally reach the top of the target, at this time all the signal indicators are on, the LED light is red and the buzzer sounds; 6.Laser distance measuring instructions: a) Press the side measurement key, turn on the laser, aim at the measurement point, and press the measurement key again to start the measurement. After the measurement is finished, the measurement data will be displayed in data bar 1; In the composite measurement mode, the final measurement result will be displayed in data bar 2 (calculation result); b) Long press the button to switch laser ranging datum (front datum/back datum) c) Long press the button to switch the length unit d) Long press the side measurement button to enter the automatic continuous measurement mode, and long press again to exit the mode (Continuous measurement mode can only be opened in length measurement mode). 7. If you need to shut down, you can press and hold the power button for about 2 seconds to shut down. 4 Operation Tips 1. Please check the battery before use: when the battery power is low, the power symbol on the display is empty, indicating that the battery should be replaced with a new one. 2. In order to ensure that the detector is in the best state during detection, you should hold the tail of the instrument during operation, and please keep your other hand away from the detector at least 6 inches during detection. 3. The equipment must be handled with care. When measuring, the detection board should be close to the surface of the …

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Rev 1/26/2023 NDI TOOLS LLC Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 04-07-2023 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BANG109D NDI TOOLS LLC 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, Applicant signature: CHENG CHEN Applicant printed name:

NDI TOOLS LLC Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 04-07-2023 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BANG109D NDI TOOLS LLC 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. Sincerely, Applicant signature: CHENG CHEN Applicant printed name:

Rev 1/26/2023 NDI TOOLS LLC Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 04-07-2023 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2BANG109D NDI TOOLS LLC certifies that, as of the date of the filing of the application, we designate ourselves as the U.S. agent for service of process. Designated U.S. Agent Information: FRN: 0033564857 Name: NDI TOOLS LLC Address: 733 Ehrhorn Avenue Mountain View California 94041 United States Contact Person: CHENG CHEN Tel.: 5157087986 Email: [email protected] Sincerely, NDI TOOLS LLC CHENG CHEN

Rev 11/20/07 NDI TOOLS LLC Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2BANG109D Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name (Block Diagram, Schematics, operation description) (Block Diagram, Schematics, operation description.pdf”) The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Pursuant to DA04-1705 June 15, 2004 of the Commission’s public notice, we also request temporary confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name (Internal Photos, Test Setup Photos) (Internal Photos, Test Setup Photos.pdf”) Number of days: 180 days Sincerely, (signature) (printed name) CHENG CHEN

NDI TOOLS LLC Date: 2023-04-07 To: Federal Communications Commission 7435 Oakland Mills Road Columbia MD FCC ID: 2BANG109D To Whom It May Concern: This letter is to ascertain that NDI TOOLS LLC Product name: Multi-function Detector, Model: KC-109D has been the units used for conducting FCC compliance testing, the SDoC part will be tested by FCC recognized test lab. If you have any question or concerns, please contact us. Sincerely, Printed name: CHENG CHEN Company name: NDI TOOLS LLC Address: 733 Ehrhorn Avenue Mountain View California 94041 United States E-mail: [email protected] Tel: 5157087986

C:\Users\xu-jx\Desktop\back up\Project\2023\NDI TOOLS LLC\709502302193-00\report\FCC POA _Letter.docx NDI TOOLS LLC Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: 04/07/2023 SUBJECT: FCC Application for FCC ID:2BANG109D To Whom It May Concern: We, the undersigned, hereby authorize Yu Anlu at TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, Printed Name: CHENG CHEN Signature：

External Photos Documentation Applicant: NDI TOOLS LLC Page 1 of 3 Product: Multi-function Detector FCC ID: 2BANG109D External Photos Documentation Applicant: NDI TOOLS LLC Page 2 of 3 Product: Multi-function Detector FCC ID: 2BANG109D External Photos Documentation Applicant: NDI TOOLS LLC Page 3 of 3 Product: Multi-function Detector FCC ID: 2BANG109D

Label & Location FCC ID:2BANG109D

Internal Photos Documentation Applicant: NDI TOOLS LLC Page 1 of 5 Product: Multi-function Detector FCC ID: 2BANG109D Internal Photos Documentation Applicant: NDI TOOLS LLC Page 2 of 5 Product: Multi-function Detector FCC ID: 2BANG109D Internal Photos Documentation Applicant: NDI TOOLS LLC Page 3 of 5 Product: Multi-function Detector FCC ID: 2BANG109D Internal Photos Documentation Applicant: NDI TOOLS LLC Page 4 of 5 Product: Multi-function Detector FCC ID: 2BANG109D 1MHz probe electrode (Antenna) 5KHz induction coil (Antenna) Internal Photos Documentation Applicant: NDI TOOLS LLC Page 5 of 5 Product: Multi-function Detector FCC ID: 2BANG109D

Declaration In the standalone transmission operation state, no emission was found in the 9k-30MHz field strength for the product (FCC ID: 2BANG109D). According to FCC KDB 447498 D04 Interim General RF Exposure Guidance v01 section 2.1.2, 1-mW test exemption, the device is qualified for SAR exemption. Test lab: TÜ V SÜ D Certification and Testing (China) Co., Ltd. Shanghai Branch Name: Yu Anlu Signature:

Report Number: 709502302193-00B EMC_SHA_F_R_02.21E TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch 3-13, No.151, Heng Tong Road, Shanghai, 200070, P.R. China Phone: +86 21 61410123, Fax:+86 21 61408600 Page 1 of 17 Rev. 20.00 FCC- TEST REPORT Report Number : 709502302193-00B Date of Issue: April 12, 2023 Model : KC-109D Product Type : Multi-function Detector Applicant : NDI TOOLS LLC Address : 733 Ehrhorn Avenue Mountain View California 94041 United States Production Facility : Yancheng Kecheng Optoelectronic Technology Co., Ltd Address : NO.43 Taihu Road,Tinghu District,Yancheng City,Jiangsu China Test Result : ◼ Positive  Negative Total pages including Appendices : 17 TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch is a subcontractor to TÜV SÜD Product Service GmbH according to the principles outlined in ISO 17025. TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch reports apply only to the specific samples tested under stated test conditions. Construction of the actual test samples has been documented. It is the manufacturer's responsibility to assure that additional production units of this model are manufactured with identical electrical and mechanical components. The manufacturer/importer is responsible to the Competent Authorities in Europe for any modifications made to the production units which result in non-compliance to the relevant regulations. TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch shall have no liability for any deductions, inferences or generalizations drawn by the client or others from TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch issued reports. This report is the confidential property of the client. As a mutual protection to our clients, the public and ourselves, extracts from the test report shall not be reproduced except in full without our written approval. dc Report Number: 709502302193-00B EMC_SHA_F_R_02.21E TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch 3-13, No.151, Heng Tong Road, Shanghai, 200070, P.R. China Phone: +86 21 61410123, Fax:+86 21 61408600 Page 2 of 17 Rev. 20.00 1 Table of Contents 1 Table of Contents ................................................................................................................................................................... 2 2 Details about the Test Laboratory .......................................................................................................................................... 3 3 Description of the Equipment Under Test ............................................................................................................................. 4 4 Summary of Test Standards ................................................................................................................................................... 5 5 Summary of Test Results ....................................................................................................................................................... 6 6 General Remarks .................................................................................................................................................................... 7 7 Systems test configuration ..................................................................................................................................................... 8 8 Test Setups ............................................................................................................................................................................. 9 9 Test Methodology ................................................................................................................................................................ 10 9.1 Radiated Emission ....................................................................................................................................................... 10 9.2 20 dB Bandwidth Measurement .................................................................................................................................. 16 10 Test Equipment List ............................................................................................................................................................. 17 11 System Measurement Uncertainty ....................................................................................................................................... 17 Report Number: 709502302193-00B EMC_SHA_F_R_02.21E TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch 3-13, No.151, Heng Tong Road, Shanghai, 200070, P.R. China Phone: +86 21 61410123, Fax:+86 21 61408600 Page 3 of 17 Rev. 20.00 2 Details about the Test Laboratory Details about the Test Laboratory Test Site 1 Company name: TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch No.16 Lane, 1951 Du Hui Road, Shanghai 201108, P.R. China Test Firm FCC Registration Number: Designation number: 820234 CN1183 IC Company Number: CAB identifier: 25988 CN0101 Telephone: +86 21 6141 0123 Fax: +86 21 6140 8600 Report Number: 709502302193-00B EMC_SHA_F_R_02.21E TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch 3-13, No.151, Heng Tong Road, Shanghai, 200070, P.R. China Phone: +86 21 61410123, Fax:+86 21 61408600 Page 4 of 17 Rev. 20.00 3 Description of the Equipment Under Test Product: Multi-function Detector Model no.: KC-109D FCC ID: 2BANG109D IC: N/A Rating: Internal Power Supply:DC 4.5V (3*AAA battery) RF Transmission Metal:5KHz±1KHz; Stud:1MHz±0.3MHz Frequency: Antenna Type: Probe electrode Description of the EUT: The EUT was a Multi-function Detector which transmitter operated at 5KHz±1KHz and 1MHz±0.3MHz. This report is only for 1MHz±0.3MHz. Test sample no.: SHA-721330-1 Report Number: 709502302193-00B EMC_SHA_F_R_02.21E TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch 3-13, No.151, Heng Tong Road, Sh…

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Applicant: NDI TOOLS LLC Product: Multi-function Detector FCC ID: 2BANG109D ©2023 Not to be reproduced, except in its entirety, Page 1 of 1 without the Permission of TÜ V SÜ D Certification and Testing (China) Co., Ltd. Shanghai Branch PHOTOGRAPHS OF TEST SET UP Field Strength and Harmonics Test Setup Radiated Emission Setup 9KHz-30MHz 30MHz ~ 1GHz