FCC ID: 2BCEM-XZ-DT Wireless module

XZ-DT User Manual 2023.7- V1.0 PIN Name Description GND DC 3.0-5.0V BUTTON Connector SGND 1 2 3 4 5 6 7 8 9 10 11 12 GND VCC NC NC NC NC BT1 NC NC SGND NC NC Shenzhen Thingsend Communication Tech Co., Ltd TEL0755-22675449 XZ-DT User Manual 2023.7- V1.0 Frequency 424.530MHz Frequency stability 20PPm Modulation mode GFSK Transmitting power <0dBm Bandwidth

<100KHz Emission current 45mA Sleep current 10uA Working temperature -4080 PCB Size 32mm20mm7mm Shenzhen Thingsend Communication Tech Co., Ltd TEL0755-22675449 FCC STATEMENT This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

This device may not cause harmful interference, and This device must accept any interference received, including interference that may cause undesired operation. Warning: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

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. FCC Radiation Exposure Statement:

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 & your body. Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 2.2 List of applicable FCC rules FCC Part 15 Subpart C 15.231 & 15.207 & 15.209 2.3 Specific operational use conditions Operation Frequency: 424.530MHz Number of Channel:1 Channels Modulation Type:FSK Antenna Type: Monopole antenna Antenna Gain(Peak):-3.96 dBi (Provided by customer) The module can be used for mobile or portable applications with a maximum -3.96dBi antenna. The host manufacturer installing this module into their product must ensure that the final composit product complies with the FCC requirements by a technical assessment or evaluation to the FCC rules, including the transmitter operaition. The host manufacturer has to be aware not to provide information to the end user regarding how to install or remove this RF module in the user's manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual. 2.4 Limited module procedures Not applicable. The module is a Single module and complies with the requirement of FCC Part 15.212. 2.5 Trace antenna designs Not applicable. The module has its own antenna, and doesnt need a hosts printed board microstrip trace antenna etc. 2.6 RF exposure considerations The module must be installed in the host equipment such that at least 5mm is maintained between the antenna and users body; and if RF exposure statement or module layout is changed, then the host product manufacturer required to take responsibility of the module through a change in FCC ID or new application. The FCC ID of the module cannot be used on the final product. In these circumstances, the host manufacturer will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. 2.7 Antennas Antenna Specification are as follows:

Antenna Type: Monopole antenna Antenna Gain(Peak):-3.96 dBi (Provided by customer) This device is intended only for host manufacturers under the following conditions:

The transmitter module may not be co-located with any other transmitter or antenna;

The module shall be only used with the External antenna(s) that has been originally tested and certified with this module. The antenna must be either permanently attached or employ a unique antenna coupler. As long as the conditions above are met, further transmitter test will not be required. However, the host manufacturer is still responsible for testing their end-product for any additional compliance requirements required with this module installed (for example, digital device emissions, PC peripheral requirements, etc.). 2.8 Label and compliance information Host product manufacturers need to provide a physical or e-label stating Contains FCC ID 2BCEM-XZ-DT With their finished product. 2.9 Information on test modes and additional testing requirements Operation Frequency: 424.530MHz Number of Channel:1 Channels Modulation Type:FSK Antenna Type: Monopole antenna Antenna Gain(Peak):-3.96 dBi (Provided by customer) Host manufacturer must perfom test of radiated & conducted emission and spurious emission, etc according to the actual test modes for a stand-alone modular transmitter in a host, as well as for multiple simultaneously transmitting modules or other transmitters in a host product. Only when all the test results of test modes comply with FCC requirements, then the end product can be sold legally. 2.10 Additional testing, Part 15 Subpart B disclaimer The modular transmitter is only FCC authorized for FCC Part 15 Subpart C 15.231 & 15.207 & 15.209 and that the host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. If the grantee markets their product as being Part 15 Subpart B compliant (when it also contains unintentional-radiator digital circuity), then the grantee shall provide a notice stating that the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed.

- Shenzhen Thingsend Communication Technology Co.,Ltd -

Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 8/14/23 U.S. Agent Designation Shenzhen Thingsend Communication Technology Co.,Ltd acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: 2BCEM-XZ-DT):

Name and company of U.S. agent: Linkwid LLC Physical U.S. address of agent: 1942 Broadway St. STE 314C, Boulder, CO, 80302, US FRN of U.S. agent: 0033625682 Email address of U.S. agent: Timothy. linkwid@proton.me Linkwid LLC acknowledges their obligation to accept service of process on behalf of Shenzhen Thingsend Communication Technology Co.,Ltd. Shenzhen Thingsend Communication Technology Co.,Ltd with the FRN 0034099309 accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later By signing this form, we confirm the above and that we are aware of the application requirements listed under 2.911(d)(7) Sincerely, i Ledio (am Signature

[Name] Caohui

[Title] Manager

[Company] Shenzhen Thingsend Communication Technology Co.,Ltd Tino, Boia Signature

[Name of U.S. agent] Timothy Zhu

[Title of U.S, agent] Manager

[Company of U.S. agent] Linkwid LLC he information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 DOI

{An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB

- Shenzhen Thingsend Communication Technology Co.,Ltd -

Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 8/17/23 To whom it may concern:

We, [Shenzhen Thingsend Communication Technology Co.,Ltd], hereby certify that the equipment for which authorization is sought (FCC ID: [2BCEM-XZ-DT]) 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). Sincerely, Signature Radio Cao Manager Shenzhen Thingsend Communication Technology Co.,Ltd 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. 2 0 V

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