FCC ID: 2AUDN-STN731WB Thermostat

731W 1 915 FCC Warning 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. Any 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Label Location On EUT Label Product Name: Thermostat Model No.: STN731W FCC ID: 2AUDN-STN731WB 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.

- Dongguan Zhongjin Electronic Technology Co.,Ltd. -

Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 U.S. Agent Designation 6/13/23

[Dongguan Zhongjin Electronic 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: ZAUDN-STN731WB) Name and company of U.S. agent: Linkwld 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.linkwld@proton.me

[Linkwld LLC] acknowledges their obligation to accept service of process on behalf of

[Dongguan Zhongjin Electronic Technology Co.,Ltd.].

[Dongguan Zhongjin Electronic Technology Co.,Ltd.] with the FRN [0028753218] 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, Signature

[Name] Jack Zhu

[Title] Manager

[Company] Dongguan Zhongjin Electronic Technology Co.,Ltd. Signature

[Name of U.S. agent] Timothy Zhu

[Title of U.S. agent] Manager

[Company of U.S. agent] Linkwld LLC 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. 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.

Dongguan Zhongjin Electronic Technology Co.,Ltd. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 6/13/23 To whom it may concern:

We, [Dongguan Zhongjin Electronic Technology Co.,Ltd.], hereby certify that the equipment for which authorization is sought (FCC ID: [2AUDN-STN731WB]) 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, 2 0 V

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d n a Signature JunShan Zhu Manager Dongguan Zhongjin Electronic Technology Co.,Ltd.

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_ 2 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.