1. FCC ID
  2. 2A4EP
  3. 2A4EP-ESP32

FCC ID 2A4EP-ESP32

Water Timer

by Zhuhai Tessan Power Technology Co., Ltd.

Grantee Code: 2A4EP   Product Code: ESP32
Latest application date: 2026-10-26

FCC ID Device Details

FCC ID2A4EP-ESP32
Mirrorsfcc.id | gov | fccid.ai
Grantee Code2A4EP
Product CodeESP32
Applicant BusinessZhuhai Tessan Power Technology Co., Ltd. 🇨🇳
Related Domains tessan.com
Equipment ClassWater Timer
Test FirmGuangzhou LCS Compliance Testing Laboratory Ltd

Operating Frequencies

Frequency RangeApplication PurposeFinal Action Date
2412-2462 MHzOriginal Equipment2026-10-26
433.92 MHzOriginal Equipment2026-10-26

Exhibits

DocumentTypeAvailableFile
User manualUsers Manual2026-10-26PDF 2.4 MB
Internal photosInternal Photos2026-10-26PDF 985.3 KB
External photosExternal Photos2026-10-26PDF 875.3 KB
Label and label locationID Label/Location Info2026-10-26PDF 136.9 KB
Test setup photosTest Setup Photos2026-10-26PDF 230.2 KB
Antenna informationTest Report2026-10-26PDF 1.4 MB
Appendix A test data 2G4WLAN part 1Test Report2026-10-26PDF 5.4 MB
Appendix A test data 2G4WLAN part 2Test Report2026-10-26PDF 3 MB
Test Report 2G4WLANTest Report2026-10-26PDF 1.3 MB
Test Report 433MTest Report2026-10-26PDF 1.2 MB
Agent attestation letterAttestation Statements2026-10-26PDF 359.1 KB
Covered equipment letterAttestation Statements2026-10-26PDF 254.5 KB
Due digilence letterAttestation Statements2026-10-26PDF 242.4 KB
Confidentiality request letterCover Letter(s)2026-10-26PDF 251.4 KB
Letter of declaration disable channel 12 and 13 by softwareCover Letter(s)2026-10-26PDF 181.5 KB
RF exposure evaluationRF Exposure Info2026-10-26PDF 284.1 KB
Block diagram Metadata onlyBlock DiagramPDF 195.9 KB
Schematic Metadata onlySchematicsPDF 252.9 KB
Operation description Metadata onlyOperational DescriptionPDF 115.4 KB

Application Information

Application IDsy17vX3F3NOdq3d7a1dteg==
Final Action Date2026-10-26
Application PurposeOriginal Equipment
Applicant FRN0031944036
ModelESP32
Frequency Range2412-2462 MHz
Equipment ClassDTS - Digital Transmission System
Device DescriptionWater Timer
Responsible PartyShaopeng Lyu, simon@tessan.com , 0756-2550031
Non-Technical ContactCindy Wu, HOORAY INDUSTRY LLC, cindynewhope@gmail.com , (626)910-5808
Test FirmGavin Liang, Guangzhou LCS Compliance Testing Laboratory Ltd, gavin.liang@lcs-cert.com , 86-20-39166689
TCB Emailo.kneip@kl-certification.de
TCB ScopeA4: UNII devices & low power transmitters using spread spectrum techniques
Short-Term ConfidentialityNo
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
sy17vX3F3NOdq3d7a1dteg==2026-10-26Original Equipment
aY9sL3kAp4wBombgQVNSig==2026-10-26Original Equipment

Equipment Authorization

FrequencyOutputRules
2412-2462 MHz0.002115C
433.92 MHz15.231

Grants

TCB Grant - Application sy17vX3F3NOdq3d7a1dteg==

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

  KL-Certification GmbH
Heinrich-Hertz-Allee 7
St. Ingbert, 66386
Germany 		Date of Grant: 10/26/2026

Application Dated: 10/26/2026
Zhuhai Tessan Power Technology Co., Ltd.
Building 14, Xiangzhou Chuanggang Center, No.199,
Weikang Road, Xiangzhou District, Zhuhai,
Zhuhai, Guangdong Province,,
China
 
Attention: Shaopeng Lyu ,

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:  2A4EP-ESP32
Name of Grantee:  Zhuhai Tessan Power Technology Co., Ltd.
Equipment Class: Digital Transmission System
Notes: Water Timer
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
15C 2412.0  -  2462.0 0.0021  

Power listed is maximum average conducted output power. This device supports both 20 MHz and 40 MHz bandwidth modes as described in this filing. The product must be installed such that its antenna(s) can provide a separation distance of at least 20 cm from all persons and must not transmit simultaneously with any other transmitter, except in accordance with FCC multi-transmitter product procedures or as described in this filing. Device also contains 433MHz transmitters and 433MHz receivers.

TCB Grant - Application aY9sL3kAp4wBombgQVNSig==

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

  KL-Certification GmbH
Heinrich-Hertz-Allee 7
St. Ingbert, 66386
Germany 		Date of Grant: 10/26/2026

Application Dated: 10/26/2026
Zhuhai Tessan Power Technology Co., Ltd.
Building 14, Xiangzhou Chuanggang Center, No.199,
Weikang Road, Xiangzhou District, Zhuhai,
Zhuhai, Guangdong Province,,
China
 
Attention: Shaopeng Lyu ,

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:  2A4EP-ESP32
Name of Grantee:  Zhuhai Tessan Power Technology Co., Ltd.
Equipment Class: Part 15 Security/Remote Control Transmitter
Notes: Water Timer
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
15.231 433.92  -  433.92  

The product must be installed such that its antenna(s) can provide a separation distance of at least 20 cm from all persons and must not transmit simultaneously with any other transmitter, except in accordance with FCC multi-transmitter product procedures or as described in this filing. Device also contains 2.4GHz WLAN transmitters and 433MHz receivers.