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FCC ID Z4T-WIO-S3

Wio-S3 Wireless Module — by Seeed Technology Co., Ltd.

Device Details

FCC IDZ4T-WIO-S3
Grantee CodeZ4T
Product CodeWIO-S3
ApplicantSeeed Technology Co., Ltd.
Address9F,Building G3,TCL International E city, Shuguang Community,Xili street,Nanshan,Shenzhen, Shenzhen, N/A, 518055, China
Equipment ClassDSS - Part 15 Spread Spectrum Transmitter
Device DescriptionWio-S3 Wireless Module
Application PurposeOriginal Equipment
Grant Date2026-09-03
Frequency Range902-928 MHz; 2402-2480 MHz; 2412-2462 MHz

Operating Frequencies

Frequency RangeApplication PurposeFinal Action Date
902–928 MHz Original Equipment 2026-09-03
902–928 MHz Original Equipment 2026-09-03

Exhibits (20) View on FCC.gov ↗

FCC.gov blocks direct links from other sites (referer check) — titles below aren't clickable. Use "View on FCC.gov" above to open and download the actual files.

DocumentTypeAvailableFile
Covered Equipment Attestation Attestation Statements 2026-09-03 ADOBE ACROBAT PDF 1.1 MB
U.S. Agent Designation Attestation Attestation Statements 2026-09-03 ADOBE ACROBAT PDF 342.3 KB
Block Diagram Metadata only Block Diagram ADOBE ACROBAT PDF 225.7 KB
Modular Approval Request Cover Letter(s) 2026-09-03 ADOBE ACROBAT PDF 178.8 KB
POA Cover Letter(s) 2026-09-03 ADOBE ACROBAT PDF 879.4 KB
Confidentiality Request Letter Cover Letter(s) 2026-09-03 ADOBE ACROBAT PDF 514.8 KB
External Photos Metadata only External Photos 2027-01-03 ADOBE ACROBAT PDF 3.6 MB
ID Label and Location ID Label/Location Info 2026-09-03 ADOBE ACROBAT PDF 250.6 KB
Internal Photos Metadata only Internal Photos 2027-01-03 ADOBE ACROBAT PDF 651.3 KB
Operational Description Metadata only Operational Description ADOBE ACROBAT PDF 117.1 KB
RF Exposure RF Exposure Info 2026-09-03 ADOBE ACROBAT PDF 581.8 KB
Schematics Metadata only Schematics ADOBE ACROBAT PDF 5.9 MB
Antenna report-2 Test Report 2026-09-03 ADOBE ACROBAT PDF 1.4 MB
Antenna report-3 Test Report 2026-09-03 ADOBE ACROBAT PDF 1.1 MB
Antenna report-4 Test Report 2026-09-03 ADOBE ACROBAT PDF 2.2 MB
Antenna report-5 Test Report 2026-09-03 ADOBE ACROBAT PDF 650.8 KB
Test Report Test Report 2026-09-03 ADOBE ACROBAT PDF 5 MB
Antenna report-1 Test Report 2026-09-03 ADOBE ACROBAT PDF 662.8 KB
Test Setup Photos Metadata only Test Setup Photos 2027-01-03 ADOBE ACROBAT PDF 4.5 MB
User manual Metadata only Users Manual 2027-01-03 ADOBE ACROBAT PDF 1.3 MB

Application Information

Application IDrWwy4VOcP+Np7ZRhEyLStw==
Final Action Date2026-09-03
Application PurposeOriginal Equipment
ModelWIO-S3
Frequency Range902-928 MHz; 2402-2480 MHz; 2412-2462 MHz
Equipment ClassDSS - Part 15 Spread Spectrum Transmitter
Device DescriptionWio-S3 Wireless Module
Responsible PartyAlbert Miao, albert.miao@seeed.cc, 86 0755-33162243
Non-Technical ContactBetty Fan, SEEED TECHNOLOGY INC, zhibing.fan@seeed.cc, (512) 786-1908
Test FirmHanson Lin, Shenzhen BALUN Technology Co., Ltd., Hanson.Lin@baluntek.com, 86-755-66833830
TCB EmailTCB@nemko.com
TCB ScopeA4: UNII devices & low power transmitters using spread spectrum techniques
Long-Term ConfidentialityYes
Short-Term ConfidentialityYes
Short-Term Release Date01/03/2027
Modular EquipmentDoes not apply
Composite DeviceYes
Cognitive RadioNo
Authorization WaiverNo
Authorization Waiver ApprovedNo
Section 5301 CertificationYes
Related OET Knowledge DataBase InquiryNo

Applications (1)

Application IDDatePurpose
rWwy4VOcP+Np7ZRhEyLStw== 2026-09-03 Original Equipment

Equipment Authorization

FrequencyOutputToleranceEmission DesignatorRules
902–928 MHz 0.11596 15C
902–928 MHz 0.11327 15C

Grants

TCB GRANT OF EQUIPMENT
AUTHORIZATION		 TCB
Certification
Issued Under the Authority of the
Federal Communications Commission
By:
  Nemko North America, Inc.
303 River Road
Ottawa, Ontario, K1V 1H2
Canada 		Date of Grant: 09/03/2026

Application Dated: 09/03/2026
Seeed Technology Co., Ltd.
9F,Building G3,TCL International E city,
Shuguang Community,Xili street,Nanshan,Shenzhen
Shenzhen, 518055
China
 
Attention: Albert Miao , R&D Director
NOT TRANSFERABLE
EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below.
 
FCC IDENTIFIER:  Z4T-WIO-S3
Name of Grantee:  Seeed Technology Co., Ltd.
Equipment Class: Part 15 Spread Spectrum Transmitter
Notes: Wio-S3 Wireless Module
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
CC 15C 902.0  -  928.0 0.11596  
CC 15C 902.0  -  928.0 0.11327  
Single Modular Approval for Mobile RF exposure conditions. Output power listed is conducted. The module antenna(s)must be installed to meet the RF exposure compliance separation distance of 20 cm and any additional testing and authorization process as required. Co-location of this module with other transmitters that operate simultaneously are required to be evaluated using the FCC multi-transmitter procedure. End-users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. The host integrator installing this module into their product must ensure that the final composite product complies with the FCC requirements by a technical assessment or evaluation to the FCC rules, including the transmitter operation and should refer to guidance in KDB 996369. Separate approval is required for all other operating configurations, including portable configurations with respect to 2.1093 and different antenna configurations.
CC: This device is certified pursuant to two different Part 15 rules sections.

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