Smart Door Lock — by Zhongshan Kaisen Technology Co., Ltd
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FCC ID 2A4KZ-K12
Device Details
FCC ID 2A4KZ-K12 Grantee Code 2A4KZ Product Code K12 Applicant Zhongshan Kaisen Technology Co., Ltd Address Zhongshan City, N/A, N/A, China Equipment Class DXX - Part 15 Low Power Communication Device Transmitter Device Description Smart Door Lock Application Purpose Original Equipment Grant Date 2026-09-03 Frequency Range 13.56-13.56 MHz; 2412-2462 MHz Operating Frequencies
Frequency Range Application Purpose Final Action Date
13.56000000–13.56000000 MHz
Original Equipment
2026-09-03
Exhibits (16)
View on FCC.gov ↗
Document Type Available File
USA-CoveredEquipmentLetter-Combined_V1.1
Attestation Statements
2026-09-03
ADOBE ACROBAT PDF 114.2 KB
USA-LocalRepLetter_V1.1 - 2A4KZ-K12
Attestation Statements
2026-09-03
ADOBE ACROBAT PDF 342.9 KB
Block Diagram
Block Diagram
ADOBE ACROBAT PDF 144.4 KB
Declaration Letter of Model Difference
Cover Letter(s)
2026-09-03
ADOBE ACROBAT PDF 79 KB
USA-ConfidentialityRequestLetter_V0.1
Cover Letter(s)
2026-09-03
ADOBE ACROBAT PDF 101.4 KB
appendix II EUT External photo
External Photos
2026-09-03
ADOBE ACROBAT PDF 3.5 MB
Label and Location
ID Label/Location Info
2026-09-03
ADOBE ACROBAT PDF 199.3 KB
appendix II EUT Internal photo
Internal Photos
2026-09-03
ADOBE ACROBAT PDF 2.6 MB
Operation Description
Operational Description
ADOBE ACROBAT PDF 210.9 KB
USA-DueDigilenceLetter_V0.1
Operational Description
ADOBE ACROBAT PDF 152.1 KB
HTT202606334F03_RF Exposure-MPE
RF Exposure Info
2026-09-03
ADOBE ACROBAT PDF 406.1 KB
schematic
Schematics
ADOBE ACROBAT PDF 1 MB
Antenna Specification-NFC
Test Report
2026-09-03
ADOBE ACROBAT PDF 148.9 KB
HTT202606334F02-Test Report-DXX 13.56RFID
Test Report
2026-09-03
ADOBE ACROBAT PDF 1.8 MB
appendix I EUT Test Setup photo
Test Setup Photos
2026-09-03
ADOBE ACROBAT PDF 424.2 KB
User Manual
Users Manual
2026-09-03
ADOBE ACROBAT PDF 994.9 KB
Application Information
Application ID WLYWeWPfcvm33Ukv1kgI+w== Final Action Date 2026-09-03 Application Purpose Original Equipment Model K12 Frequency Range 13.56-13.56 MHz; 2412-2462 MHz Equipment Class DXX - Part 15 Low Power Communication Device Transmitter Device Description Smart Door Lock Responsible Party bohao Yang, ybh133808858512021@163.com, 13380885851 Non-Technical Contact Cindy Wu, HOORAY INDUSTRY LLC, cindynewhope@gmail.com, (626) 910-5808 Test Firm Kevin Yang, Shenzhen HTT Technology Co.,Ltd., info@httprc.com, 86-755-23595200 TCB Email o.kneip@kl-certification.de TCB Scope A1: Low Power Transmitters below 1 GHz (except Spread Spectrum), Unintentional Radiators, EAS (Part 11) & Consumer ISM devices Long-Term Confidentiality Yes Short-Term Confidentiality No Modular Equipment Does not apply Composite Device Yes Cognitive Radio No Authorization Waiver No Authorization Waiver Approved No Section 5301 Certification Yes Related OET Knowledge DataBase Inquiry No Applications (1)
Application ID Date Purpose
WLYWeWPfcvm33Ukv1kgI+w==
2026-09-03
Original Equipment
Equipment Authorization
Frequency Output Tolerance Emission Designator Rules
13.56000000–13.56000000 MHz
15C
Grants
TCB
GRANT OF EQUIPMENT
AUTHORIZATIONTCB
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: 09/03/2026
Zhongshan Kaisen Technology Co., Ltd
Room 301, No.30, Wansheng Road, Xiaolan Town,
Zhongshan City,
China
Attention: bohao Yang , manager
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:
2A4KZ-K12
Name of Grantee:
Zhongshan Kaisen Technology Co., Ltd
Equipment Class:
Part 15 Low Power Communication Device Transmitter
Notes:
Smart Door Lock
Grant Notes
FCC Rule Parts
Frequency
Range (MHZ)
Output
Watts
Frequency
Tolerance
Emission
Designator
15C
13.56
-
13.56
RF exposure compliance is addressed for 1.1310 and 2.1091 MPE limits. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons. End Users must be provided with transmitter operation conditions for satisfying RF exposure compliance.
Regulatory Testing from Start to Certificate
