1. FCC ID
  2. 2AC7Z
  3. 2AC7Z-ESPS3MINI1

FCC ID 2AC7Z-ESPS3MINI1

2.4GHz BT IoT Module

by ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD

Grantee Code: 2AC7Z   Product Code: ESPS3MINI1
Latest application date: 2025-12-24

FCC ID Device Details

FCC ID2AC7Z-ESPS3MINI1
Mirrorsfcc.id | gov | fccid.ai
Grantee Code2AC7Z
Product CodeESPS3MINI1
Applicant BusinessESPRESSIF SYSTEMS (SHANGHAI) CO., LTD 🇨🇳
Related Domains espressif.com seattleultrasonics.com
Equipment Class2.4GHz BT IoT Module
Test FirmTUV Rheinland (Guangdong) Ltd

Operating Frequencies

Frequency RangeApplication PurposeFinal Action Date
2402-2480 MHzClass II permissive change or modification of presently authorized equipment2025-12-24
2402-2480 MHzOriginal Equipment2022-02-28

Exhibits

DocumentTypeAvailableFile
User Manual_HostUsers Manual2026-06-22PDF 2.4 MB
User manualUsers Manual2022-08-27PDF 653.5 KB
Internal Photos_HostInternal Photos2026-06-22PDF 2.7 MB
Internal photosInternal Photos2022-08-27PDF 358.6 KB
External Photos_HostExternal Photos2026-06-22PDF 2.7 MB
External photosExternal Photos2022-08-27PDF 348 KB
Product Label and Location_HostID Label/Location Info2025-12-24PDF 170.6 KB
LabelID Label/Location Info2022-02-28PDF 54.6 KB
Label locationID Label/Location Info2022-02-28PDF 30.2 KB
SAR Test Setup PhotosTest Setup Photos2026-06-22PDF 519.7 KB
Test Setup PhotosTest Setup Photos2026-06-22PDF 242.5 KB
Test setupTest Setup Photos2022-08-27PDF 268.1 KB
Antenna Gain InfoTest Report2025-12-24PDF 2.8 MB
SAR Test ReportRF Exposure Info2025-12-24PDF 931.1 KB
SAR Test Report_Calibration Certificate for probe and DipoleRF Exposure Info2025-12-24PDF 2.3 MB
Test ReportTest Report2025-12-24PDF 2.4 MB
Test Report_FR1N0918A_R01_ESP32-S3-MINI-1Test Report2025-12-24PDF 4.5 MB
Test reportTest Report2022-02-28PDF 5.6 MB
Attestation of US AgentAttestation Statements2025-12-24PDF 149.8 KB
Not Covered Entity ApplicantAttestation Statements2025-12-24PDF 94.5 KB
Not Covered EquipmentAttestation Statements2025-12-24PDF 96.1 KB
Agency LetterCover Letter(s)2025-12-24PDF 97.6 KB
C2PC LetterCover Letter(s)2025-12-24PDF 381.5 KB
Confidentiality LetterCover Letter(s)2025-12-24PDF 101.9 KB
Declaration of use wireless module Host Metadata onlyCover Letter(s)2025-12-24PDF 301 KB
Cover LetterCover Letter(s)2022-02-28PDF 177.4 KB
Cover letterCover Letter(s)2022-02-28PDF 133.4 KB
RF ExposureRF Exposure Info2022-02-28PDF 648.1 KB
Block Diagram Metadata onlyBlock DiagramPDF 102.6 KB
Block Diagram Metadata onlyBlock DiagramPDF 118.7 KB
Schematics Metadata onlySchematicsPDF 123.6 KB
Schematics_Battery Pack_Host Metadata onlySchematicsPDF 391.6 KB
Schematics_Handle_Host Metadata onlySchematicsPDF 758.4 KB
Operational Description Metadata onlyOperational DescriptionPDF 34.5 KB
Operational Description_Host Metadata onlyOperational DescriptionPDF 161.2 KB
Parts list Metadata onlyParts List/Tune Up InfoPDF 74.5 KB
Tune up Metadata onlyParts List/Tune Up InfoPDF 52.6 KB

Application Information

Application IDpCYouPN57b2Q5riIefw8qQ==
Final Action Date2025-12-24
Application PurposeClass II permissive change or modification of presently authorized equipment
Applicant FRN0023938848
ModelESPS3MINI1
Frequency Range2402-2480 MHz
Equipment ClassDTS - Digital Transmission System
Device Description2.4GHz BT IoT Module
Responsible PartyMia Zhou, zhoumiaomiao@espressif.com , (8621)61065209
Technical ContactMia Zhou, ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD, Adrian.Perry@Chamberlain.com , (8621)61065209
Non-Technical ContactScott Heimendinger, Cuisonic Inc., scott@seattleultrasonics.com , (206) 880-1623
Test FirmTina Jiang, TUV Rheinland (Guangdong) Ltd, sandyhy.huang@tuv.com , +86 20 2839 1888
TCB Emailtcb-hotline@tuv.com
TCB ScopeA4: UNII devices & low power transmitters using spread spectrum techniques
Short-Term ConfidentialityYes
Long-Term ConfidentialityYes
Modular EquipmentSingle Modular Approval
Composite DeviceNo
Cognitive RadioNo
Authorization WaiverNo
Authorization Waiver ApprovedNo
Section 5301 CertificationYes
Related OET Knowledge DataBase InquiryNo

Applications

Application IDDatePurpose
pCYouPN57b2Q5riIefw8qQ==2025-12-24Class II permissive change or modification of presently authorized equipment
t32eNSrs26ekJ+tQXjE84A==2022-02-28Original Equipment

Equipment Authorization

FrequencyOutputRules
2402-2480 MHz0.010715C
2412-2462 MHz0.336515C

Grants

TCB Grant - Application t32eNSrs26ekJ+tQXjE84A==

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: 02/28/2022

Application Dated: 02/27/2022
ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD
Suite 204, Block 2, 690 Bibo Road,
Zhang Jiang Hi-Tech Park,
Shanghai, 201203
China
 
Attention: Mia Zhou

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:  2AC7Z-ESPS3MINI1
Name of Grantee:  ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD
Equipment Class: Digital Transmission System
Notes: 2.4GHz Wi-Fi & BT IoT Module
Modular Type: Single Modular
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
15C 2402.0  -  2480.0 0.0107  
15C 2412.0  -  2462.0 0.3365  

Single Modular Approval. Power output listed is conducted. This module has 20 MHz and 40 MHz bandwidth mode. The module grantee is responsible for providing the documentation to the system integrator on restrictions of use, for continuing compliance of the module. The 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.

EAS Grant - Application t32eNSrs26ekJ+tQXjE84A==

COPY FEDERAL COMMUNICATIONS
COMMISSION
WASHINGTON, D.C. 20554

GRANT OF EQUIPMENT
AUTHORIZATION		 COPY
Certification

ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD
Suite 204, Block 2, 690 Bibo Road, Zhang Jiang Hi-Tech Park,
Shanghai, 201203
China 		  Date of Grant: 02/28/2022

Application Dated: 02/27/2022
 
Attention: Mia Zhou

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:  2AC7Z-ESPS3MINI1
Name of Grantee:  ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD
Equipment Class: Digital Transmission System
Notes: 2.4GHz Wi-Fi & BT IoT Module
Modular Type: Single Modular
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
15C 2402.0  -  2480.0 0.0107  
15C 2412.0  -  2462.0 0.3365  

Single Modular Approval. Power output listed is conducted. This module has 20 MHz and 40 MHz bandwidth mode. The module grantee is responsible for providing the documentation to the system integrator on restrictions of use, for continuing compliance of the module. The 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.



TCB Grant - Application pCYouPN57b2Q5riIefw8qQ==

Mail To:
TCB GRANT OF EQUIPMENT
AUTHORIZATION		 TCB
Certification
Issued Under the Authority of the
Federal Communications Commission
By:

  TUV Rheinland of North America, Inc.
1279 Quarry Lane Suite A
Pleasanton, CA 94566
Date of Grant: 12/24/2025

Application Dated: 12/23/2025
ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD
Suite 204, Block 2, 690 Bibo Road,
Zhang Jiang Hi-Tech Park,
Shanghai, 201203
China
 
Attention: Mia Zhou ,

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:  2AC7Z-ESPS3MINI1
Name of Grantee:  ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD
Equipment Class: Digital Transmission System
Notes: 2.4GHz BT IoT Module
Modular Type: Single Modular
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
15C 2402.0  -  2480.0 0.0107  

Class 2 Permissive Change to disable the Wi-Fi by software and integrate the module into the host device: Seattle Ultrasonics C-200 Ultrasonic Chef's Knife, Model: C-200. The highest reported SAR for body and extremity (hand) exposure conditions are 0.12 W/kg and 0.03 W/kg, respectively.

Single Modular Approval. Power output listed is conducted. The module grantee is responsible for providing the documentation to the system integrator on restrictions of use, for continuing compliance of the module. The 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.