Control box — by Qingdao Richmat Intelligence Technology Inc
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Class II Permissive Change: Authorized integration into C25 series control box devices (Models C25L-X-XXX-XXX-XX).
FCC ID 2AJJGHJ8258C
Device Details
FCC ID 2AJJGHJ8258C Grantee Code 2AJJG Product Code HJ8258C Applicant Qingdao Richmat Intelligence Technology Inc Address NO.78 Kongquehe 4th Road, Qingdao Clothing Industry park,, Jimo, Qingdao, Shandong Province, N/A, N/A, China Equipment Class DTS - Digital Transmission System Device Description Control box Application Purpose Class II Permissive Change Grant Date 2026-08-10 Frequency Range 2402-2480 MHz Operating Frequencies
Frequency Range Application Purpose Final Action Date
2402.00000000–2480.00000000 MHz
Class II Permissive Change
2026-08-10
Exhibits (12)
View on FCC.gov ↗
Document Type Available File
Attestation Section 2.911(d)(5)(i) and (ii) Filing
Attestation Statements
2026-08-10
ADOBE ACROBAT PDF 86.9 KB
US Agent letter
Attestation Statements
2026-08-10
ADOBE ACROBAT PDF 150.4 KB
C2PC permissive change letter
Cover Letter(s)
2026-08-10
ADOBE ACROBAT PDF 505.2 KB
Family model declaration letter
Cover Letter(s)
2026-08-10
ADOBE ACROBAT PDF 54.6 KB
POA letter
Cover Letter(s)
2026-08-10
ADOBE ACROBAT PDF 11.8 KB
External photos
External Photos
2026-08-10
ADOBE ACROBAT PDF 652.5 KB
Label
ID Label/Location Info
2026-08-10
ADOBE ACROBAT PDF 122.2 KB
Internal photos
Internal Photos
2026-08-10
ADOBE ACROBAT PDF 705.7 KB
RF exposure report
RF Exposure Info
2026-08-10
ADOBE ACROBAT PDF 342.9 KB
Test report
Test Report
2026-08-10
ADOBE ACROBAT PDF 956.3 KB
Test setup photos
Test Setup Photos
2026-08-10
ADOBE ACROBAT PDF 363 KB
User manual
Users Manual
2026-08-10
ADOBE ACROBAT PDF 445.1 KB
Application Information
Application ID ewVEka8UimliEzs4FHGeuA== Final Action Date 2026-08-10 Application Purpose Class II Permissive Change Model HJ8258C Frequency Range 2402-2480 MHz Equipment Class DTS - Digital Transmission System Device Description Control box Responsible Party Chongjie Yuan, ycj@richmat.com, +86 532 80635999 Non-Technical Contact Tim Payne, FCC US Agent, LLC, Support@FCCUSAgent.com, 708-571-3148 Test Firm Joy Zhou, WALTEK TESTING GROUP CO., LTD., szqa@waltek.com.cn, 0769-22676998 TCB Email cb@industrial-ia.com TCB Scope A4: UNII devices & low power transmitters using spread spectrum techniques Long-Term Confidentiality No Short-Term Confidentiality No Modular Equipment Single Modular Approval Composite Device No Cognitive Radio No Authorization Waiver No Authorization Waiver Approved No Section 5301 Certification Yes Related OET Knowledge DataBase Inquiry No Applications (12)
Application ID Date Purpose
8rTuspH748BFA2RFX/F7kQ==
2026-09-20
Class II Permissive Change
3MGknsFnJiVqtuajFuym7Q==
2026-09-18
Class II Permissive Change
C1GRoTEonVBav2dV7gM9lw==
2026-09-16
Class II Permissive Change
gLPvvG7G0URH00FzUn8QEA==
2026-08-16
Class II Permissive Change
1mPAS0McG2rE0OeO0lyH6A==
2026-08-12
Class II Permissive Change
2XFWNNYzpNy3kdU4V3hc8A==
2026-08-11
Class II Permissive Change
ewVEka8UimliEzs4FHGeuA==
2026-08-10
Class II Permissive Change
3mi/pRG9s7QQ2V8dxS2zOA==
2026-08-06
Class II Permissive Change
IxRIlffQqxfWcUWRIjc+pA==
2026-08-02
Class II Permissive Change
5UW0316tBs4/ynR9Ll4Inw==
2026-07-16
Class II Permissive Change
TDhKpqMO4lEAymWV9wOsng==
2026-07-07
Class II Permissive Change
ZlaDsyNTvVxOnBMR2YIhrQ==
2026-05-28
Original Equipment
Equipment Authorization
Frequency Output Tolerance Emission Designator Rules
2402.00000000–2480.00000000 MHz
0.0007500
15C
Grants
TCB
GRANT OF EQUIPMENT
AUTHORIZATIONTCB
Certification
Issued Under the Authority of the
Federal Communications Commission
By:
IIA Lab Services, LLC
13146 NW 86th Drive Suite 400
Alachua, FL 32615
Date of Grant: 08/10/2026
Qingdao Richmat Intelligence Technology Inc
NO.78 Kongquehe 4th Road,
Qingdao Clothing Industry park,
Jimo, Qingdao, Shandong Province,
China
Attention: Chongjie Yuan ,
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:
2AJJGHJ8258C
Name of Grantee:
Qingdao Richmat Intelligence Technology Inc
Equipment Class:
Digital Transmission System
Notes:
Control box
Modular Type:
Single Modular
Grant Notes
FCC Rule Parts
Frequency
Range (MHZ)
Output
Watts
Frequency
Tolerance
Emission
Designator
15C
2402.0
-
2480.0
0.00075
Single module approval. Output Power listed is the maximum conducted output power. This device must be installed and operated so as to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures, or as evaluated in this filing.
Regulatory Testing from Start to Certificate
