FCC ID: 2ATM71603M YoLink Hub

YS1603-UC (FCC), YS1603-EC (CE+UKCA), YS1603-JC A B C ETHERNET POWER PORT SET BUTTON WALL-

MOUNTING SLOT

(ON REAR, NOT SHOWN) HUB STATUS LED INDICATORS LED INDICATORS POWER INTERNET FEATURE HUB STATUS NORMAL (ON, CONNECTED TO INTERNET) ABNORMAL (ON, INTERNET NOT CONNECTED) WIFI SETTINGS CHANGE:

RESTORING TO FACTORY DEFAULTS:

DEVICE UPDATING:

LED BEHAVIORS KEY OFF ON BLINK SLOW BLINK ETHERNET JACK LED BEHAVIORS D E

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TYPE OF DEVICE

(FACTORY SET) DEVICE NAME (TAP TO EDIT) DEVICE'S ROOM (TAP TO EDIT) FAVORITE (TAP TO ADD TO FAVORITES) HISTORY (TAP TO VIEW) DEVICE SETTINGS: SIREN VOLUME

(TAP TO EDIT) DEVICE SETTINGS: ALARM DURATION (TAP TO EDIT) BATTERY LEVEL ONLINE/OFFLINE STATUS MODEL NUMBER (FACTORY SET) UNIQUE EUI NUMBER UNIQUE DEVICE SERIAL NUMBER DEVICE SIGNAL LEVEL FIRMWARE REVISION Figure 1 N 1 2 3 O

J INCHES (MILLIMETERS) FRONT SIDE TO P P Q R This device complies with part 15 of the FCC Rules. Operaon is subject to the following two condions : (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operaon. Any changes or modicaons 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 protecon against harmful interference in a residenal installaon. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instrucons, may cause harmful interference to radio communicaons. However, there is no guarantee that interference will not occur in a parcular installaon. If this equipment does cause harmful interference to radio or television recepon, which can be determined by turning the equipment o 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 separaon between the equipment and receiver.

-- Connect the equipment into an outlet on a circuit dierent from that to which the receiver is connected.

-- Consult the dealer or an experienced radio/TV technician for help. To maintain compliance with FCCs RF Exposure guidelines, This equipment should be installed and operated with mminimum distance between 20cm the radiator your body: Use only the supplied antenna. S T Revision:

8/25/2022 IC Caution:

-English:

This device complies with Industry Canada licence-exempt RSS standard(s).

antenna.

-French:

YoSmart Inc. 2023.01.03 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern:

We, the undersigned, hereby authorize Shenzhen BCTC Testing Co., Ltd to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Clients signature:

Clients name / title : Manxiang Xu/N/A Contact information / address: 15375 Barranca Parkway, Ste G-105 Irvine, CA 92618, USA

YoSmart Inc. 2023.01.03 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: YoLink Hub Trademark: N/A MODEL: YS1603-UC, YS1603-UA FCC ID:2ATM71603M To Whom It May Concern:

This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the

- Block Diagram

- Schematics

- Operational Description required to be submitted with this application be permanently withheld from public review. 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. Please contact me if there is any information you may need. Sincerely, Clients signature:

Clients name / title : Manxiang Xu /N/A Contact information / address: 15375 Barranca Parkway, Ste G-105 Irvine, CA 92618, USA

YoSmart Inc. Model Difference Product description: Motorized valve Model name: YS5002-UC, YS5002-UA Trade Name: N/A FCC ID:2ATM75002 All the model are the same circuit and RF module, except model names. Regards Sincerely Clients signature:

Clients name / title : Manxiang Xu/N/A Contact information / address: 15375 Barranca Parkway, Ste G-105 Irvine, CA 92618, USA