FCC ID: 2ANDL-WT3 Wi-Fi and Bluetooth Module

Features @

Developer Applications Change history Dimensions and footprint WT3 Pin definition Definitions on test points Absolute electrical parameters Normal working conditions RF power consumption Working current Basic RF features Wi-Fi transmission performance Wi-Fi receiving performance Bluetooth transmission performance Bluetooth receiving performance Antenna type @

Antenna interference reduction PCB antenna Do not place any metal in the red area above the antenna. The recommended diameter of the circular arc is greater than 3 cm. Mechanical dimensions WT3 Bottom View 1E8 Side View HERE ETE Recommended footprint 1.00 8.01 Production instructions HUMIDITY INDICATOR 30% 40% 50% 60%

Recommended oven temperature curve IPC-7530a-3-l-cn Storage conditions Caution This bag contains MOISTURE-SENSITIVE DEVICES if blank, see adjacent bar code labal

. Calculated shelf life in sealed bag: 12 months at <40C and

<90% relative humidity (RH)

. Peak package body temperature:

If blank, see adjacent bar code label

. After bag is opened, devices that will be subjected to reflow solder or other high temperature process must be a) Mounted within: ___ 168 hours of factory conditions If blank, see adjacent bar code label 30C/60% RH, or b) Stored per J-STD-033

. Devices require bake, before mounting, if:

a) Humidity Indicator Card reads >10% for level 2a - 5a devices or >60% for level 2 devices when read at 23 + 5C b) 3a or 3b are not met If baking is required, refer to IPC/JEDEC J-STD-033 for bake procedure See Production Date Bag Seal Date:

ibiank. see adjacent bar code label Note: Level and body tempersture defined by IPC/JEDEC J-STD-020

Company: Hangzhou Tuya Information Technology Co.,Ltd Address: Room701,Building3,More Center,No.87 GuDun Road, Hangzhou,Zhejiang, China Tel: 86-571-86581786 Fax: 86-571-86581786 Date (07/04/2022) TUV SUD America Inc. 10 Centennial Drive Peabody, MA 01960, USA Dear Sir or Madam, We, (Hangzhou Tuya Information Technology Co.,Ltd), hereby authorize Jiaxi Xu rom TV SD Certification and Testing (China) Co., Ltd. Shanghai Branch 3-13, No.151 Heng Tong Road Shanghai 201108 P.R. China, to act as our agent in all matters relating to applications for equipment authorization, including the signing of all documents relating to these matters. Yours sincerely, Name:

Title: Manager

Company: Hangzhou Tuya Information Technology Co.,Ltd Address: Room701,Building3,More Center,No.87 GuDun Road, Hangzhou,Zhejiang, China Tel: 86-571-86581786 Fax: 86-571-86581786 WIFI Channel 12 ,13 and 14 Declaration Letter We declare the equipment identified below with regards to Channel 12,13 and 14 capabilities for FCC ID: 2ANDL-WT3 Declaration Product hardware does not have the capability to operate on Channel 12,13 and 14. Product hardware has the capability to operate on Channel 12 ,13 and 14. However, these three channels will be disabled via software and will not be accessible to user. Product hardware has the capability to operate on Channel 12 ,13 and 14. However, all the operated channels cant be changed in the RF parameter via software. All channels have complied with all of the requirements sets out in FCC Part 15.247. Product hardware has the capability to operate on WiFi Channel 12 ,13 and 14, and meets the requirements of KDB 594280 D01 v02r01. Please note:

1.) By default, this device operates in a mode that is compliant with the U.S. requirements. 2.) This device will also use supplemental information such as geo-location data to determine that it is operating outside the U.S., if necessary, to change its power. Such supplemental data will be derived from the following:

Global Navigation Satellite System (GNSS)7 sensors in the device Mobile Country Code (MCC),8 or MCC with a Mobile Network code (MNC), received from a CMRS9 carrier and received directly by a receiver on the device Country information derived from multiple adjacent access points (for example using IEEE Std 802.11d provisions) may be permitted on case-by-case basis Other suitable geo-location data based on IP addresses or other reliable source. Name / Title: / General Manager Signature:

Phone: 86-571-86581786 Email: mikeshou@tuya.com Date: May.07,2021

Company: Hangzhou Tuya Information Technology Co.,Ltd Address: Room701,Building3,More Center,No.87 GuDun Road, Hangzhou,Zhejiang, China Tel: 86-571-86581786 Fax: 86-571-86581786 Date (07/04/2022) Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Confidentiality Request FCC ID: 2ANDL-WT3 Pursuant to Sections 0.457(d)(1)(ii) and 0.459 of the Commissions Rules, (Hangzhou Tuya Information Technology Co.,Ltd) hereby requests permanent confidential treatment of information accompanying this application as outlined below:

Schematics Block Diagrams Theory of Operation The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rule 0.457(d)(1)(ii), disclosure of this Application and all accompanying materials will not be made before the date of the Grant for this Application. Yours sincerely, Name:

Title: Manager

Company: Hangzhou Tuya Information Technology Co.,Ltd Address: Room701,Building3,More Center,No.87 GuDun Road, Hangzhou,Zhejiang, China Tel: 86-571-86581786 Fax: 86-571-86581786 Date (07/04/2022) Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Modular Approval Request FCC ID: 2ANDL-WT3 The following attestation addresses the requirements to support modular approval:

Modular approval requirement Yes (provide brief statement) No *

(a) The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly

(b) The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal

(c) The module must contain power supply regulation on the module

(d) The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per Sections 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b) The module has a metal shied. Refer to the external photo of EUT. Data to the modulation circuit is buffered as described in the operational description provided with the application. The module contains its own power supply regulation. Please refer to schematic filed with this application. The module has a PCB antenna and which permanently attached the module. Refer to the photo of EUT.

(e) The module must demonstrate compliance in a stand-alone configuration The module was tested stand-alone as shown in test setup photographs filed with this application. The FCC ID is printed on the label of the module. Refer to the label of EUT.

(f) The module must be labelled with its permanently affixed FCC ID label, or use an electronic display (See KDB Publication 784748 about labelling requirements)

(g) The module must comply with all specific rules applicable to the transmitter. The grantee must provide comprehensive instructions to explain compliance requirements The module comply with all specific rules.Refer to the datasheet. Modular approval requirement Yes (provide brief statement)

(h) The module must comply with RF exposure requirements Please refer exhibition RF Exposure for the compliance of MPE RF exposure rule.

* Please provide a detailed explanation if the answer is No. Yours sincerely, Name:

Title:

Manager