2BKI4-DH-WF11WIFI door magnetic sensor detection alarm

DOOR SENDOR INSTRUCTION Product Configuration LED Reset Magnet Part Battery Front Back Main Function： Detect open/close status of the door/window Specifications Battery：AAA 1.5Vx2 Standby Current：≤50uA Protocol：IEEE 802.11b/g/n Wireless Range：50m Operating Temperature：-10°C--40°C（14°F--104°F） Operating Humidity：20%--85% Storage Temperature：-10°C--60°C（14°F--140°F） Storage Humidity： 0%--90% Wireless Type：2.4GHz Standby Time：4-6 months Size：Magnet Part：50x15x18 Device PART：70x36x19 TuyaSmart Google Home Amazon Alexa Download App 1.Android Smart Phone:download“Tuya Smart”from GooglePlay 2.IOS iphone:download“Tuya Smart”from App Store Run App 1.Run“Tuya Smart”from your smartphone 2.Register and login Door Sensor Select Device Type,select“Security＆Sensor”in the list to add the “Door Sensor”device Network Configuration Ther are two methods to bind door sensor to App.One is Smart Wifi Mode and the other is AP Mode 1.Smart Wifi Mode: Press and hold: “WiFi Coding/RESET Button”for 6 seconds,the indicator will blink rapidly.The device is in Smart Wi-Fi Mode. 2.AP Mode Select AP Mode at upper right corner on the App. Press and hold: “WiFi Coding/RESET Button”for 6 seconds again,the indicator will blink slowly,and the device is in AP mode.After entering your WiFi password and connect your phone to door sensors WiFi hotspot then press “Connect Now”. 3.Connecting: Finished Operation instruction Open the door magnetic alarm:open the dooralarm-close the door alarm-mobile phone notice bar prompt. Alarm notiflcation: Customize Scenes You can associate two devices to create your own scene. 1.Click+in the upper right corner to select the menu in the red box 2.Magnetically separate the door and associate the camera with motion detection on. 3.Click the menuin the red box 4.Click Save Association successful 5.When the door is magnetically separated,the associated camera movement detection is turned on. Tips: 1.Please make sure connect 2.4GHz wifi Network as the sensor do not support 5GHz wifi 2.The connect position for sensor and magnetic FCC Warnning: 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 againstharmful interference in a residential installation. This equipment generates, uses and can radiateradio frequency energy and, if not installed and used in accordance with the instructions, maycause harmful interference to radio communications. However, there is no guarantee thatinterference will not occur in a particular installation. If this equipment does cause harmfulinterference to radio or television reception, which can be determined by turning the equipmentoff and on, the user is encouraged to try to correct the interference by one or more of thefollowing 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. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment. This device 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. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body.

Guangdong Tianmai IoT Technology Co., Ltd Room 401, Building 3, No. 8 Jinshun Road, Fenggang Town Dongguan City, Guangdong Province China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2024-9-3 To whom it may concern: We, Guangdong Tianmai IoT Technology Co., Ltd, hereby certify that the equipment for which authorization is sought (FCC ID: 2BKI4-DH-WF11) is not “covered” equipment prohibited from receiving an equipment authorization pursuant to § 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, we are not identified on the Covered List (https://www.fcc.gov/supplychain/coveredlist) as an entity producing “covered” equipment. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(b) and (d)(5) and (6). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. Sincerely, Signature QingLong Yang Manager Guangdong Tianmai IoT Technology Co., Ltd 62_[model] CoveredEqu_2.911(d)(5)(i) and (ii) - U, V03

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2024-9-3> Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name 2BKI4-DH-WF11 DH-WF11 For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title： QingLong Yang/Manager Company: Guangdong Tianmai IoT Technology Co., Ltd Address: Room 401, Building 3, No. 8 Jinshun Road, Fenggang Town Dongguan City, Guangdong Province China Phone: 13603034005 Fax: N/A E-Mail: [email protected]

Guangdong Tianmai IoT Technology Co., Ltd Room 401, Building 3, No. 8 Jinshun Road, Fenggang Town Dongguan City, Guangdong Province China Date: 2024-9-3 FCC ID: 2BKI4-DH-WF11 Model Number: DH-WF11 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD To Whom It May Concern, We, Guangdong Tianmai IoT Technology Co., Ltd, declare that this EUT (FCC ID: 2BKI4-DH-WF11) doesn’t have Ad Hoc mode function on “non-US/Canada frequencies”. In addition. The frequency selection feature is disabled by firmware for devices marked to the US/Canada. For DTS part of this device, only channels 1-11 will be used in North America, Country code selection is disabled. Should you have any questions or comments regarding this matter, please have my best attention. Sincerely, Name/Title： QingLong Yang/Manager Company: Guangdong Tianmai IoT Technology Co., Ltd Address: Room 401, Building 3, No. 8 Jinshun Road, Fenggang Town Dongguan City, Guangdong Province China Phone: 13603034005 Fax: N/A E-Mail: [email protected]

Guangdong Tianmai IoT Technology Co., Ltd Room 401, Building 3, No. 8 Jinshun Road, Fenggang Town Dongguan City, Guangdong Province China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2024-9-3 To whom it may concern: We, the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2BKI4-DH-WF11 including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. By signing this application form, we agree to Eurofins’ current valid General Terms and Conditions (AGB),Testing and Certification Regulations (PZO) which can be viewed on following website www.eurofins.de/ee or retrieved on request. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title： QingLong Yang/Manager Company: Guangdong Tianmai IoT Technology Co., Ltd Address: Room 401, Building 3, No. 8 Jinshun Road, Fenggang Town Dongguan City, Guangdong Province China Phone: 13603034005 Fax: N/A E-Mail: [email protected]

Shenzhen HTT Technology Co., Ltd. Report No.: HTT202408324 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 1 of 4 Product Name: WIFI door magnetic sensor detection alarm Model No.: DH-WF11 EUT Constructional Details External Photo Report No.: HTT202408324 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 2 of 4 Report No.: HTT202408324 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 3 of 4 Report No.: HTT202408324 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 4 of 4 ------End------

Label and Location Size: L: 2.0cm*W: 0.5cm Label and Location FCC ID : 2BKI4-DH-WF11

Shenzhen HTT Technology Co., Ltd. Report No.: HTT202408324 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 1 of 3 Product Name: WIFI door magnetic sensor detection alarm Model No.: DH-WF11 EUT Constructional Details Internal Photo Report No.: HTT202408324 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 2 of 3 Report No.: HTT202408324 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 3 of 3 ------End------

RF Exposure evaluation FCC ID: 2BKI4-DH-WF11 Exposure category: General population/uncontrolled environment EUT Type: Production Unit Device Type: Mobile Device 1. Reference According to §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to §1.1310 and §2.1091 RF exposure is calculated. KDB447498 D01: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies 2. Limit Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 3.0 – 30 30 – 300 300 – 1500 1500 – 100,000 614 1842/f 61.4 / / 1.63 4.89/f 0.163 / / (100) * (900/f 2 )* 1.0 f/300 5 6 6 6 6 6 Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 3.0 – 30 30 – 300 300 – 1500 1500 – 100,000 614 824/f 27.5 / / 1.63 2.19/f 0.073 / / (100) * (180/f 2 )* 0.2 f/1500 1.0 30 30 30 30 30 F=frequency in MHz *=Plane-wave equivalent power density 3. MPE Calculation Method Predication of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 S=PG/4πR² Where: S=power density P=power input to antenna G=power gain of the antenna in the direction of interest relative to an isotropic radiator R=distance to the center of radiation of the antenna 4. Antenna Information DH-WF11 can only use antennas certificated as follows provided by manufacturer; Antenna No. Model No. of antenna: Type of antenna: Gain of the antenna (Max.) Frequency range: 2.4GWIFI / PCB Antenna 1.37dBi for 2400-2500MHz 5. Manufacturing Tolerance WIFI(Peak) Frequency (MHz) 11b 2412 2437 2462 Target (dBm) 16.0 16.0 16.0 Tolerance ± (dB) 1.0 1.0 1.0 Frequency (MHz) 11g 2412 2437 2462 Target (dBm) 20.0 20.0 20.0 Tolerance ± (dB) 1.0 1.0 1.0 Frequency (MHz) 11n(HT20) 2412 2437 2462 Target (dBm) 20.0 20.0 20.0 Tolerance ± (dB) 1.0 1.0 1.0 Frequency (MHz) 11n(HT40) 2422 2437 2452 Target (dBm) 18.0 18.0 18.0 Tolerance ± (dB) 1.0 1.0 1.0 6. Standalone MPE Result As declared by the Applicant, the EUT is a wireless device used in a fix application, at least 20 cm from any body part of the user or nearby persons; from the maximum EUT RF output power, the minimum separation distance, r =20cm, as well as the gain of the used antenna is 1.37dBi, the RF power density can be obtained. Modulation Type Output power Antenna Gain (dBi) Antenna Gain (linear) MPE (mW/cm 2 ) MPE Limits (mW/cm 2 ) dBm mW 2.4GWIFI 21.0 125.8925 1.37 1.3709 0.0344 1.0000 Remark: 1. Output power (Peak) including turn-up tolerance; 2. MPE evaluate distance is 20cm from user manual provide by manufacturer. 7. Conclusion The measurement results comply with the FCC Limit per 47 CFR 2.1091 for the uncontrolled RF Exposure of mobile device. ----------------THE END OF REPORT---------------

1 Antenna Specification Manufacture：TUYA Product Name：CB3S Antenna Antenna Type：PCB Test Date：2021.04.16 Tested by：Jianwei Wang Approved by：Licco Antenna Test Report 2 Content 1.General Description ................................................................................. 3 2.Test Configurations .................................................................................. 4 2.1 Test Environment ............................................................................ 4 2.2 Test Equipment ............................................................................... 4 2.3 Test Principle .................................................................................. 4 3.Test Results .............................................................................................. 5 3.1 Gain and Efficiency ........................................................................ 5 3.2 Radiation Pattern ............................................................................. 6 4.Antenna Dimensions ................................................................................ 9 5.EUT Photo ............................................................................................... 9 6.Test Setup Photo .................................................................................... 10 3 1.General Description Manufacturer Hangzhou Tuya Information Technology Co.,Ltd Address Room 701,Building 3,More Center,No.87 GuDun Road, Hangzhou, Zhejiang,China Test Location Room 106, Building 3, Letong Science Park, No. 500, Qiuyi Road, Binjiang District, Hangzhou Product Name CB3S Antenna Product model CB3S Antenna Type PCB Antenna Test Items Gain; Efficiency; Radiation Pattern Test Frequency 2400-2500MHz Test Standard ANSI/IEEE Std 149-1979 4 2.Test Configurations 2.1 Test Environment Temperature (°C) 25 Humidity (%RH) 60 Atmospheric Pressure (kPa) 100.5 2.2 Test Equipment Test System TEM 24 Multi-probe Microwave Chamber Test Instrument Agilent E5071B 2.3 Test Principle 5 3.Test Results 3.1 Gain and Efficiency Frequency (MHz) Peak Gain (dBi) Efficiency (%) 2400 0.46 44.36 2410 0.71 45.71 2420 0.92 45.92 2430 0.91 45.6 2440 0.95 45.6 2450 0.93 45.29 2460 1.27 46.45 2470 1.37 46.88 2480 1.25 47.21 2490 1.24 46.67 2500 1.05 44.87 6 3.2 Radiation Pattern Phi 0 7 Phi 90 8 Theta 90 9 4.Antenna Dimensions 5.EUT Photo 10 6.Test Setup Photo

Shenzhen HTT Technology Co., Ltd. Report No.: HTT202408324F01 This results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Page 1 of 35 TEST Report Applicant: Guangdong Tianmai IoT Technology Co., Ltd Address of Applicant: Room 401, Building 3, No. 8 Jinshun Road, Fenggang Town, Dongguan City, Guangdong Province Manufacturer : Guangdong Tianmai IoT Technology Co., Ltd Address of Manufacturer : Room 401, Building 3, No. 8 Jinshun Road, Fenggang Town, Dongguan City, Guangdong Province Equipment Under Test (EUT) Product Name: WIFI door magnetic sensor detection alarm Model No.: DH-WF11 Series model: N/A Trade Mark: N/A FCC ID: 2BKI4-DH-WF11 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of sample receipt: Aug. 15, 2024 Date of Test: Aug. 15, 2024 ~ Aug. 21, 2024 Date of report issued: Aug. 21, 2024 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Report No.: HTT202408324F01 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 2 of 35 1. Version Version No. Date Description 00 Aug. 21, 2024 Original Tested/ Prepared By Date: Aug. 21, 2024 Project Engineer Check By: Date: Aug. 21, 2024 Reviewer Approved By : Date: Aug. 21, 2024 Authorized Signature Report No.: HTT202408324F01 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 3 of 35 2. Contents Page 1. VERSION ........................................................................................................................................................ 2 2. CONTENTS .................................................................................................................................................... 3 3. TEST SUMMARY ........................................................................................................................................... 4 4. GENERAL INFORMATION ............................................................................................................................ 5 4.1. GENERAL DESCRIPTION OF EUT ................................................................................................................ 5 4.2. TEST MODE ............................................................................................................................................... 7 4.3. DESCRIPTION OF SUPPORT UNITS .............................................................................................................. 7 4.4. DEVIATION FROM STANDARDS .................................................................................................................... 7 4.5. ABNORMALITIES FROM STANDARD CONDITIONS ........................................................................................... 7 4.6. TEST FACILITY ........................................................................................................................................... 7 4.7. TEST LOCATION ......................................................................................................................................... 7 4.8. ADDITIONAL INSTRUCTIONS ........................................................................................................................ 7 5. TEST INSTRUMENTS LIST ........................................................................................................................... 7 6. TEST RESULTS AND MEASUREMENT DATA ........................................................................................... 9 6.1. CONDUCTED EMISSIONS ............................................................................................................................ 9 6.2. CONDUCTED PEAK OUTPUT POWER ......................................................................................................... 10 6.3. CHANNEL BANDWIDTH .............................................................................................................................. 11 6.4. POWER SPECTRAL DENSITY ..................................................................................................................... 14 6.5. BAND EDGE ............................................................................................................................................. 17 6.5.1. Conducted Emission Method ......................................................................................................... 17 6.5.2. Radiated Emission Method ............................................................................................................ 20 6.6. SPURIOUS EMISSION ................................................................................................................................ 22 6.6.1. Conducted Emission Method ......................................................................................................... 22 6.6.2. Radiated Emission Method ............................................................................................................ 27 6.7. ANTENNA REQUIREMENT .......................................................................................................................... 34 7. TEST SETUP PHOTO .................................................................................................................................. 35 8. EUT CONSTRUCTIONAL DETAILS ...................................................................................................…

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Shenzhen HTT Technology Co., Ltd. Report No.: HTT202408324 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 1 of 1 Product Name: WIFI door magnetic sensor detection alarm Model No.: DH-WF11 Test Setup Photo Radiated Emission ------End------