1. FCC ID
  2. Z4T
  3. Z4T-WIO-S3

FCC ID Z4T-WIO-S3

Wio-S3 Wireless Module

by Seeed Technology Co., Ltd.

Grantee Code: Z4T   Product Code: WIOS3
Latest application date: 2026-09-03

FCC ID Device Details

FCC IDZ4T-WIO-S3
Mirrorsfcc.id | gov | fccid.ai
Grantee CodeZ4T
Product CodeWIOS3
Applicant BusinessSeeed Technology Co., Ltd. 🇨🇳
Related Domains seeed.cc
Equipment ClassWio-S3 Wireless Module
Test FirmShenzhen BALUN Technology Co., Ltd.

Operating Frequencies

Frequency RangeApplication PurposeFinal Action Date
2412-2462 MHzOriginal Equipment2026-09-03
902-928 MHzOriginal Equipment2026-09-03

Exhibits

DocumentTypeAvailableFile
ID Label and LocationID Label/Location Info2026-09-03PDF 250.6 KB
Antenna report-1Test Report2026-09-03PDF 2.9 MB
Antenna report-1Test Report2026-09-03PDF 662.8 KB
Antenna report-2Test Report2026-09-03PDF 662.8 KB
Antenna report-2Test Report2026-09-03PDF 1.4 MB
Antenna report-3Test Report2026-09-03PDF 1.1 MB
Antenna report-3Test Report2026-09-03PDF 1.4 MB
Antenna report-4Test Report2026-09-03PDF 2.2 MB
Antenna report-4Test Report2026-09-03PDF 1.1 MB
Antenna report-5Test Report2026-09-03PDF 650.8 KB
Antenna report-5Test Report2026-09-03PDF 2.2 MB
Antenna report-6Test Report2026-09-03PDF 650.8 KB
Test ReportTest Report2026-09-03PDF 5 MB
Test Report-1Test Report2026-09-03PDF 4.6 MB
Test Report-2Test Report2026-09-03PDF 4.7 MB
Test Report-3Test Report2026-09-03PDF 3 MB
Covered Equipment AttestationAttestation Statements2026-09-03PDF 1.1 MB
U.S. Agent Designation AttestationAttestation Statements2026-09-03PDF 342.3 KB
Confidentiality Request LetterCover Letter(s)2026-09-03PDF 514.8 KB
Modular Approval RequestCover Letter(s)2026-09-03PDF 178.8 KB
POACover Letter(s)2026-09-03PDF 879.4 KB
RF ExposureRF Exposure Info2026-09-03PDF 581.8 KB
User Manual Metadata onlyUsers Manual2027-03-03PDF 1.3 MB
User manual Metadata onlyUsers Manual2027-01-03PDF 1.3 MB
Internal Photos Metadata onlyInternal Photos2027-03-03PDF 651.3 KB
External Photos Metadata onlyExternal Photos2027-03-03PDF 3.6 MB
Test Setup Photos Metadata onlyTest Setup Photos2027-03-03PDF 4.5 MB
Block Diagram Metadata onlyBlock DiagramPDF 225.7 KB
Schematics Metadata onlySchematicsPDF 5.9 MB
Operational Description Metadata onlyOperational DescriptionPDF 117.1 KB

Application Information

Application IDvnF57imdRF6mfQFynFz0Gw==
Final Action Date2026-09-03
Application PurposeOriginal Equipment
Applicant FRN0023926116
ModelWIO-S3
Frequency Range2412-2462 MHz
Equipment ClassDTS - Digital Transmission System
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
Short-Term ConfidentialityYes
Long-Term ConfidentialityYes
Modular EquipmentDoes not apply
Composite DeviceYes
Cognitive RadioNo
Authorization WaiverNo
Authorization Waiver ApprovedNo
Section 5301 CertificationYes
Related OET Knowledge DataBase InquiryNo

Applications

Application IDDatePurpose
vnF57imdRF6mfQFynFz0Gw==2026-09-03Original Equipment
rWwy4VOcP+Np7ZRhEyLStw==2026-09-03Original Equipment

Equipment Authorization

FrequencyOutputRulesGrant Notes
2402-2480 MHz0.0073515CCC
2412-2462 MHz0.1963415CCC
902-928 MHz0.1090715CCC
902-928 MHz0.1159615CCC
902-928 MHz0.1132715CCC

Grants

TCB Grant - Application vnF57imdRF6mfQFynFz0Gw==

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: Digital Transmission System
Notes: Wio-S3 Wireless Module
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
CC 15C 2402.0  -  2480.0 0.00735  
CC 15C 2412.0  -  2462.0 0.19634  
CC 15C 902.0  -  928.0 0.10907  

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.

TCB Grant - Application rWwy4VOcP+Np7ZRhEyLStw==

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.