2AC23-DT3LWIFI+BT Module

Hui Zhou Gaoshengda Technology Co., LTD DT3LR1601 PAGE 1 OF 7 Version 1.0 WIFI+BT Module IEEE 802.11 a/b/g/n 1T/1R Model Number: DT3LR1601 Product Descrition The DT3LR1601 is a complete 2.4GHz/5GHz WIFI module. This module provides a high level of integration with IEEE 802.11n MAC/ base band /radio and Bluetooth 5.4.The WLAN operation supports 20MHz,40MHz channels for data rates up to 150Mbps. It fully complies with IEEE 802.11 a/b/g/n feature rich wireless connectivity at high standards,delivers reliable,cost-effective, throughput from an extended distance. Product Features ◆ Complies with IEEE 802.11b/g/n for 2.4GHz，IEEE 802.11a/n for 5GHz ◆ Bluetooth v5.4 ◆ One transmit and One receive path(1T1R) ◆ Works with all existing network nfrastructure. ◆ Capable of up to 128-Bit WEP Encryption. ◆ Freedom to roam while staying connected. ◆ Operating Systems：Linux, Windows. ◆ Low power consumption. ◆ Easy to install and configure. ◆ USB interface. ◆ ROHS compliant Product Specification Model DT3LR1601 Product Name WIFI+BT Module Standard 802.11 a/b/g/n Interface USB Data Transfer Rate Up to 150Mbps Modulation Method GFSK,π/4-DQPSK,8DPSK(bluetooth) DQPSK,DBPSK,CCK(802.11b) QPSK,BPSK,16QAM,64QAM with OFDM (802.11g) QPSK,BPSK,16QAM,64QAM with OFDM (802.11n) QPSK,BPSK,16QAM,64QAM with OFDM (802.11a) Frequency Band BLUETOOTH 2402~2480 MHz WIFI 2.4G: 2412~2462 MHz 5G: 5150~5350MHz, 5470~5725MHz，5725~5850MHz Operation Mode Infrastructure Security WEP, TKIP, AES, WPA, WPA2 Operating Voltage 3.3V±10% Current Consumption ＜1000mA Antenna Type PCB Operating Temperature -30 ~ 70°C ambient temperature Storage Temperature -40 ~ 85°C ambient temperature Humidity 10 to 90 % maximum (non-condensing) Hui Zhou Gaoshengda Technology Co., LTD DT3LR1601 PAGE 2 OF 7 Version 1.0 NOTICE: ◆please keep this product and accessories attached to the places which children can't touch; ◆do not splash water or other liquid onto this product, otherwise it may cause damage; ◆do not put this product near the heat source or direct sunlight, otherwise it may cause deformation or malfunction; ◆please keep this product away from flammable or naked flame; ◆please do not repair this product by yourself. Only qualified personnel can be repaired. FCC Statement 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: -Reorient or relocate the receiving antenna. -Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. This equipment complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 2.2 This module has been assessed against the following FCC rule parts: CFR 47 FCC Part 15 C (15.247, DTS and DSS) and CFR 47 FCC Part 15 E (NII). It is applicable to the modular transmitter 2.3 This radio transmitter 2AC23-DT3L has been approved by Federal Communications Commission to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device. The concrete contents to check are the following three points. 1) Maximum antenna gains are shown in item 2.7 below. 2) Should be installed so that the end user cannot modify the antenna 3) Feed line should be designed in 50ohm Hui Zhou Gaoshengda Technology Co., LTD DT3LR1601 PAGE 3 OF 7 Version 1.0 Fine-tuning of return loss etc. can be performed using a matching network. The antenna shall not be accessible for modification or change by the end user. 2.4 The module complies with FCC Part 15.247 / Part 15.407 and apply for Single module approval. 2.5 Trace antenna designs: applicable. Any deviation(s) from the defined parameters of the antenna trace, as described by the instructions, require that the host product manufacturer must notify the module grantee that they wish to change the antenna trace design. In this case, a Class II permissive change application is required to be filed by the grantee, or the host manufacturer can take responsibility through the change in FCC ID (new application) procedure followed by a Class II permissive change application. The device must be professionally installed. The intended use is generally not for the general public. It is generally for industry/commercial use. The connector is within the transmitter enclosure and can only be accessed by disassembly of the transmitter that is not normally required. The user has no access to the connector. Installation must be controlled. Installation requires special training. 2.6 This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator & your body. This transmitt…

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User manual Supplementary information a) Trace layout and dimensions including specific designs for each type: 1. Layout of trace design, parts, antenna, connectors, and isolation requirements: 2. Boundary limits of size, thickness, length, width, shape(s), dielectric contain, and impedance must be clearly described for each type of antenna: PCB Antenna trace antenna Dimension: Note: 1. RF trace between module RF pinout to antenna width is 0.127mm. 2. RF trace between module and antenna impedance is 50ohm. b) Appropriate parts of manufacturers and specifications: Information about devices on RF lines: Parts list Parts number Size Manufacturer Tuning 1/0Ω / 0201 varies If customers completely refer to our antenna design for their own design, the antenna performance should also be the same as ours. C) Test procedures and design verifications: d) Production test procedures for ensuring compliance

DT3LR1601 15 1 3

Appendix II Setup Photographs RADIATED RF MEASUREMENT SETUP (ABOVE 1 GHz) MEASUREMENT POSITION MEASUREMENT POSITION (X axis) MEASUREMENT POSITION (Y axis) MEASUREMENT POSITION (Z axis) RADIATED RF MEASUREMENT SETUP (30MHz~1GHz) RADIATED RF MEASUREMENT SETUP (Below 30MHz) AC CONDUCTED POWER LINE SETUP

[文档标题] V1.0 1/6 Antenna test report Product name： Wireless transmitting and receiving module Module： DT3LR1601 2.4GHz 2026.03.10 Frequency： Test date： Testing purpose： BT antenna performance test Tester: Bao Haibin Hou Dewei Gao Zhao Check: Approval: [文档标题] V1.0 2/6 Revision history Version Date Revisions V1.02026-03-10 Initial Issue [文档标题] V1.0 3/6 1、 Location 1.1.1、BT:PCB antenna 2、 test environment [文档标题] V1.0 4/6 Test configuration diagram: Test Procedure [文档标题] V1.0 5/6 4、 2D Etotal Phi 0 2DPhi 90 2DTheta 90 5、3D Etotal 6、Antenna efficiency and gain 3、 Antenna Standing Wave Ratio（<=2dB） BT antenna standing wave ratio [文档标题] V1. 0 6/6 BT 效率与增益 BT Frequency/MhzMaxGain/dBiEfficiency/ % 24002.5727.99 24101.8623.77 24201.6722.75 24301.3720.89 24401.823.01 24501.7222.28 24601.6822.54 24701.0219.68 24800.9219.1 24900.5418.16 25001.1420.37

GSD Project Name：WIFI ANT HY P/N: DT3L 汉阳天线版权所有Copyright ©2014-2024 Shenzhen HanyangAntenna Design Co., Ltd. All rights reserved. Date：2026-04-28 SHENZHEN HANYANG ANTENNA DESIGN CO.LTD. 汉阳天线版权所有Copyright ©2014-2024 Shenzhen HanyangAntenna Design Co., Ltd. All rights reserved. SHENZHEN HANYANG ANTENNA DESIGN CO.LTD. 汉阳天线版权所有Copyright ©2014-2024 Shenzhen HanyangAntenna Design Co., Ltd. All rights reserved. SHENZHEN HANYANG ANTENNA DESIGN CO.LTD. 深圳汉阳天线设计有限公司 SHENZHEN HANYANG ANTENNA DESIGN CO.LTD. 汉阳天线 版权所有 Copyright ©2014-2024 Shenzhen Hanyang Antenna Design Co., Ltd. All rights reserved. Address: Shenzhen Baoan District Qianjin 2 Road BaoYunda logistics information building 12A11 Test date: 2023.04.20 Tester : Liu Deng The name and software version number of the commercial testing software used: GTS_MAX SIGN Libra1.2.7 test procedure 汉阳天线版权所有Copyright ©2014-2024 Shenzhen HanyangAntenna Design Co., Ltd. All rights reserved. SHENZHEN HANYANG ANTENNA DESIGN CO.LTD. 汉阳天线版权所有Copyright ©2014-2024 Shenzhen HanyangAntenna Design Co., Ltd. All rights reserved. SHENZHEN HANYANG ANTENNA DESIGN CO.LTD. FreqEfficiency_dBEfficiency_PcentGain 2400 48.642.08 2410 48.98 2.41 2420 50.472.89 2430 50.73.03 2440 50.233.06 2450 49.432.96 2460 48.982.98 2470 47.97 2.83 2480 46.99 2.86 2490 45.392.8 2500 44.872.82 FreqEfficiency_dBEfficiency_PcentGain 5150 71.293.05 5175 70.633.03 5200 70.473.15 5225 70.79 3.01 5250 72.783.11 5275 73.623.09 5300 73.453.24 5325 71.783.43 5350 71.293.58 5375 71.783.44 5400 72.113.32 5425 70.153.15 5450 71.123.42 5475 69.663.25 5500 68.393.27 5525 66.993.26 5550 66.373.53 5575 66.07 3.59 5600 67.143.81 5625 65.313.76 5650 64.573.86 5675 63.97 3.65 5700 66.223.67 5725 65.423.46 5750 64.86 3.59 5775 66.073.39 5800 65.163.54 5825 65.613.47 5850 63.533.54 -3.13 -3.1 -2.97 -2.95 -2.99 -3.06 -3.1 -3.19 -3.28 -3.43 -3.48 -1.47 -1.51 -1.52 -1.5 -1.38 -1.24 -1.16 -1.19 -1.23 -1.24 -1.29 -1.31 -1.33 -1.33 -1.38 -1.34 -1.37 -1.44 -1.52 -1.53 -1.47 -1.48 -1.44 -1.43 -1.37 -1.42 -1.47 -1.54 -1.46 汉阳天线版权所有Copyright ©2014-2024 Shenzhen HanyangAntenna Design Co., Ltd. All rights reserved. SHENZHEN HANYANG ANTENNA DESIGN CO.LTD. 汉阳天线版权所有Copyright ©2014-2024 Shenzhen HanyangAntenna Design Co., Ltd. All rights reserved. SHENZHEN HANYANG ANTENNA DESIGN CO.LTD. x y z 2450MHZ 5650MHZ 汉阳天线版权所有Copyright ©2014-2024 Shenzhen HanyangAntenna Design Co., Ltd. All rights reserved. SHENZHEN HANYANG ANTENNA DESIGN CO.LTD. FreqEfficiency_dBEfficiency_PcentGain 2400 -3.34 46.34 2.06 2410 -3.2547.321.7 2420 -3 50.122.66 2430 -2.951.292.45 2440 -2.83 52.12 2.44 2450 -2.8352.842.33 2460 -2.7753.092.48 2470 -2.75 54.22.56 2480 -2.6653.952.66 2490 -2.6854.22.7 2500 -2.5 53.95 2.89 FreqEfficiency_dBEfficiency_PcentGain 5150 -2.3258.612.85 5175 -2.4457.02 2.84 5200 -2.4756.623.01 5225 -2.2959.023.54 5250 -2.3658.083.46 5275 -2.4157.413.45 5300 -2.457.543.65 5325 -2.4656.753.72 5350 -2.52 55.98 3.74 5375 -2.6254.73.67 5400 -2.6554.333.72 5425 -2.7453.213.68 5450 -2.6754.083.71 5475 -2.6154.83 3.31 5500 -2.8851.523.78 5525 -2.9650.583.49 5550 -3.1548.423.61 5575 -3.1448.533.87 5600 -3.2447.423.39 5625 -3.3945.813.81 5650 -3.6742.953.4 5675 -3.8341.43.27 5700 -4.1138.822.84 5725 -4.2538.582.65 5750 -4.6434.362.24 5775 -4.9 32.36 1.94 5800 -4.9531.991.76 5825 -5.1430.621.36 5850 -5.4828.310.82 汉阳天线版权所有Copyright ©2014-2024 Shenzhen HanyangAntenna Design Co., Ltd. All rights reserved. SHENZHEN HANYANG ANTENNA DESIGN CO.LTD. 汉阳天线版权所有Copyright ©2014-2024 Shenzhen HanyangAntenna Design Co., Ltd. All rights reserved. SHENZHEN HANYANG ANTENNA DESIGN CO.LTD. x y z 2450MHZ 5650MHZ SHENZHEN HANYANG ANTENNA DESIGN CO.LTD. Welcome calls consultations, negotiations and guidance come! Thank you 汉阳天线版权所有Copyright ©2014-2024 Shenzhen HanyangAntenna Design Co., Ltd. All rights reserved.

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. FCC 47 CFR PART 15 SUBPART E ISED RSS-247 Issue 4 TEST REPORT For WIFI+BT Module MODEL NUMBER: DT3LR1601 REPORT NUMBER: 4792194522-1-RF-4 ISSUE DATE: May 25, 2026 FCC ID: 2AC23-DT3L IC: 12290A-DT3L Prepared for Hui Zhou Gaoshengda Technology Co.,LTD No.6,Qiaoguang Road,Chenjiang Street,Zhongkai High-tech Zone,Huizhou,Guangdong,China Prepared by UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch Room 101, Building 2, No.4, Information Road, Songshan Lake, Dongguan, Guangdong, China Tel: +86 769 22038881 Fax: +86 769 33244054 Website: www.ul.com REPORT NO.: 4792194522-1-RF-4 Page 2 of 153 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO: 10-SL-F0035 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Revision History Rev. Issue Date Revisions Revised By V0 May 25, 2026 Initial Issue REPORT NO.: 4792194522-1-RF-4 Page 3 of 153 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO: 10-SL-F0035 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Summary of Test Results Test Item Clause Limit/Requirement Result ON TIME AND DUTY CYCLE ANSI C63.10-2020, Clause 12.2 None; for reporting purposes only. Pass 6dB AND 26dB EMISSION BANDWIDTH AND 99% OCCUPIED BANDWIDTH KDB 789033 D02 v02r01 Section C.1 FCC Part 15.407 (a)/(e), RSS-247 Issue 4, Clause 7.3.5.2 RSS-Gen Clause 6.7 Pass CONDUCTED OUTPUT POWER KDB 789033 D02 v02r01 Section E.3.a (Method PM)/KDB 789033 D02 v02r01 Section E.3.a (Method PM) Section E.2.d (Method SA-2) FCC 15.407 (a) RSS-247 Clause 7.3 Pass POWER SPECTRAL DENSITY KDB 789033 D02 v02r01 Section F FCC 15.407 (a) RSS-247 Clause 7.3 Pass AC Power Line Conducted Emission ANSI C63.10-2020, Clause 6.2. FCC 15.207 RSS-GEN Clause 8.8 Pass Radiated Emissions and Band Edge Measurement KDB 789033 D02 v02r01 Section G.3, G.4, G.5, and G.6 FCC 15.407 (b) FCC 15.209 FCC 15.205 RSS-247 Clause 7.3 RSS-GEN Clause 8.9 Pass FREQUENCY STABILITY ANSI C63.10-2020,Clause 6.8 FCC 15.407 (g) Pass Dynamic Frequency Selection (Slave) KDB 905462 D03 UNII Clients Without Radar Detection New Rules v01r02 FCC Part 15.407 (h), RSS-247 Issue 4 Clause 7.3.6 Pass Antenna Requirement N/A FCC 47 CFR Part 15.203/ 15.407(a)(1) (2), RSS-Gen Issue 5, Clause 6.8 Pass Note: 1. For FCC, ANSI C63.10:2020 + Cor.1:2023 is also considered for the corresponding test item which is needed. 2. For ISED, this report is also performed according to ANSI C63.10-2020 + Cor.1-2023 + C63.10a-2024 + Errata to C63.10a-2024 standards. *This test report is only published to and used by the applicant, and it is not for evidence purpose in China. *The measurement result for the sample received is <Pass> according to <FCC 47 CFR PART 15 SUBPART E ISED RSS-247 Issue 4> when <Simple Acceptance> decision rule is applied. Decision rule for statement of conformity: The measurement uncertainty is not taken into account for statement of conformity. REPORT NO.: 4792194522-1-RF-4 Page 4 of 153 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO: 10-SL-F0035 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. CONTENTS 1. ATTESTATION OF TEST RESULTS ..................................................................................... 6 2. TEST METHODOLOGY ......................................................................................................... 7 3. FACILITIES AND ACCREDITATION ..................................................................................... 7 4. CALIBRATION AND UNCERTAINTY ................................................................................... 8 4.1. MEASURING INSTRUMENT CALIBRATION ........................................................... 8 4.2. MEASUREMENT UNCERTAINTY ............................................................................ 8 5. EQUIPMENT UNDER TEST .................................................................................................. 9 5.1. DESCRIPTION OF EUT ........................................................................................... 9 5.2. CHANNEL LIST ........................................................................................................ 9 5.3. MAXIMUM POWER ................................................................................................ 10 5.4. TEST CHANNEL CONFIGURATION ...................................................................... 11 5.5. THE WORSE CASE POWER SETTING PARAMETER .......................................... 12 5.6. DESCRIPTION OF AVAILABLE ANTENNAS ......................................................... 13 5.7. SUPPORT UNITS FOR SYSTEM TEST ................................................................. 14 6. MEASURING EQUIPMENT AND SOFTWARE USED......................................................... 15 7. ANTENNA PORT TEST RESULTS ..................................................................................... 18 7.1. ON TIME AND DUTY CYCLE ................................................................................. 18 7.2. 6DB AND 26DB EMISSION BANDWIDTH AND 99% OCCUPIED BANDWIDTH ... 19 7.3. CONDUCTED OUTPUT POWER ........................................................................... 21 7.4. POWER SPECTRAL DENSITY .............................................................................. 24 7.5…

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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. FCC RF EXPOSURE REPORT For WIFI+BT Module MODEL NUMBER: DT3LR1601 REPORT NUMBER: 4792194522-1-RF-5 ISSUE DATE: April 29, 2026 FCC ID: 2AC23-DT3L Prepared for Hui Zhou Gaoshengda Technology Co.,LTD No.6,Qiaoguang Road,Chenjiang Street,Zhongkai High-tech Zone,Huizhou,Guangdong,China Prepared by UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch Room 101, Building 2, No.4, Information Road, Songshan Lake, Dongguan, Guangdong, China Tel: +86 769 22038881 Fax: +86 769 33244054 Website: www.ul.com REPORT NO.: 4792194522-1-RF-5 Page 2 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Revision History Rev. Issue Date Revisions Revised By V0 April 29, 2026 Initial Issue REPORT NO.: 4792194522-1-RF-5 Page 3 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. TABLE OF CONTENTS 1. ATTESTATION OF TEST RESULTS ................................................................................. 4 2. TEST METHODOLOGY ..................................................................................................... 5 3. FACILITIES AND ACCREDITATION ................................................................................. 5 4. REQUIREMENT ................................................................................................................. 6 REPORT NO.: 4792194522-1-RF-5 Page 4 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. 1. ATTESTATION OF TEST RESULTS Applicant Information Company Name: Hui Zhou Gaoshengda Technology Co.,LTD Address: No.6,Qiaoguang Road,Chenjiang Street,Zhongkai High-tech Zone,Huizhou,Guangdong,China Manufacturer Information Company Name: Hui Zhou Gaoshengda Technology Co.,LTD Address: No.6,Qiaoguang Road,Chenjiang Street,Zhongkai High-tech Zone,Huizhou,Guangdong,China EUT Information EUT Name: WIFI+BT Module Model: DT3LR1601 Brand: GSD Sample Received Date: March 31, 2026 Sample Status: Normal Sample ID: 9586648 Date of Tested: April 3, 2026 to April 29, 2026 APPLICABLE STANDARDS STANDARD TEST RESULTS 447498 D04 Interim General RF Exposure Guidance v01 PASS Prepared By: Checked By: Johnson Liu Kebo Zhang Laboratory Engineer Associate Operations Leader Approved By: Stephen Guo Operations Manager REPORT NO.: 4792194522-1-RF-5 Page 5 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. 2. TEST METHODOLOGY The tests documented in this report were performed in accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 and KDB 447498 D04 General RF Exposure Guidance v01. 3. FACILITIES AND ACCREDITATION Accreditation Certificate A2LA (Certificate No.: 4102.01) UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch. has been assessed and proved to be in compliance with A2LA. FCC (FCC Designation No.: CN1187) UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch. Has been recognized to perform compliance testing on equipment subject to the Commission's Declaration of Conformity (DoC) and Certification rules. ISED (Company No.: 21320) UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch. has been registered and fully described in a report filed with ISED. The Company Number is 21320 and the test lab Conformity Assessment Body Identifier (CABID) is CN0046. VCCI (Registration No.: C-20202, G-20240, R-20248 and T-20202) UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch. has been assessed and proved to be in compliance with VCCI, the Membership No. is 3793. Facility Name: Chamber E, the VCCI registration No. is G-20240 and R-20248 Shielding Room F, the VCCI registration No. is C-20202 and T-20202 Note 1: All tests measurement facilities use to collect the measurement data are located at Room 101, Building 2, No.4, Information Road, Songshan Lake, Dongguan, Guangdong, China. Note 2: The test anechoic chamber in UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch had been calibrated and compared to the open field sites and the test anechoic chamber is shown to be equivalent to or worst case from the open field site. Note 3: For below 30 MHz, lab had performed measurements at test anechoic chamber and comparing to measurements obtained on an open field site. And these measurements below 30 MHz had been correlated to measurements performed on an OFS. REPORT NO.: 4792194522-1-RF-5 Page 6 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. 4. REQUIREMENT LIMIT AND CALCULATION METHOD According to 447498 D04 Interim General RF Exposure Guidance v01, 2.1.4 MPE-Based Exemption An alternative to the SAR-based exemption is provided in § 1.1307(b)(3)(i)(C), for a much wider frequency range, from 300 kHz to 100 GHz, applicable for se…

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Internal Photographs Page 2 of 2 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch.

Hui Zhou Gaoshengda Technology Co.,LTD Date: 4/27/2026 Federal Communications Commissions Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 RE: CFR 47 §2.911 (d)(5) Attestation FCC ID: 2AC23-DT3L Grantee‘s FRN: 0023889280 1.Hui Zhou Gaoshengda Technology Co.,LTD 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.Hui Zhou Gaoshengda Technology Co.,LTD certifies that, the device does not have cybersecurity and / or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, identified on the Covered List installed on the device, nor will it be installed by the applicant anytime after certification. 3. Hui Zhou Gaoshengda Technology Co.,LTD certifies that the RF device is not a router “produced in a foreign country”. 4.Hui Zhou Gaoshengda Technology Co.,LTD 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: Hui Guan Job Title: Manger Company Name: Hui Zhou Gaoshengda Technology Co.,LTD

External Photographs Page 2 of 4 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. External Ant3(BT) Ant1(WIFI) Ant2(WIFI) Page 3 of 4 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Page 4 of 4 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch.

Modular Approval Request FCC (Per 15.212) FCC ID: 2AC23-DT3L Items to be covered Answer From Applicant 1.The radio elements of the modular transmitter must have their own shielding. The physical crystal and tuning capacitors may be located external to the shielded radio elements. Yes 2.The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with part 15 requirements under conditions of excessive data rates or over-modulation. Yes 3.The modular transmitter must have its own power supply regulation. Yes 4.The modular transmitter must comply with the antenna and transmission system requirements of §§ 15.203, 15.204(b) and 15.204(c). The antenna must either be permanently attached or employ a “unique” antenna coupler (at all connections between the module and the antenna, including the cable). The “professional installation” provision of § 15.203 is not applicable to modules but can apply to limited modular approvals under paragraph (b) of this section. Yes 5.The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing for compliance with part 15 requirements. Unless the transmitter module will be battery powered, it must comply with the AC line conducted requirements found in § 15.207. AC or DC power lines and data input/output lines connected to the module must not contain ferrites, unless they will be marketed with the module (see § 15.27(a)). The length of these lines shall be the length typical of actual use or, if that length is unknown, at least 10 centimeters to insure that there is no coupling between the case of the module and supporting equipment. Any accessories, peripherals, or support equipment connected to the module during testing shall be unmodified and commercially available (see § 15.31(i)). Yes 6.The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number. (A)If using a permanently affixed label, the modular transmitter must be labeled with its own FCC identification number, and, if the FCC identification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: “Contains Transmitter Module FCC ID: XYZMODEL1” or “Contains FCC ID: XYZMODEL1.” Any similar wording that expresses the same meaning may be used. The Grantee may either provide such a label, an example of which must be included in the application for equipment authorization, or, must provide adequate instructions along with the module which explain this requirement. In the latter case, a copy of these instructions must be included in the application for equipment Yes authorization. (B)If the modular transmitter uses an electronic display of the FCC identification number, the information must be readily accessible and visible on the modular transmitter or on the device in which it is installed. If the module is installed inside another device, then the outside of the device into which the module is installed must display a label referring to the enclosed module. This exterior label can use wording such as the following: “Contains FCC certified transmitter module(s).” Any similar wording that expresses the same meaning may be used. The user manual must include instructions on how to access the electronic display. A copy of these instructions must be included in the application for equipment authorization. 7.The modular transmitter must comply with any specific rules or operating requirements that ordinarily apply to a complete transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. Yes 8.Radio frequency device…

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