FCC ID 2AU4DDDJ
Smoke Alarm
by X-Sense Innovations Co., Ltd.
Grantee Code: 2AU4D Product Code: DDJ
Latest application date: 2026-11-13
FCC ID Device Details
| FCC ID | 2AU4DDDJ |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2AU4D |
| Product Code | DDJ |
| Applicant Business | X-Sense Innovations Co., Ltd. 🇨🇳 |
| Related Domains |  x-sense.com |
| Equipment Class | Smoke Alarm |
| Test Firm | Shenzhen UnionTrust Quality and Technology Co., Lt |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 915.275 MHz | Original Equipment | 2026-11-13 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| UM | Users Manual | 2026-11-13 | PDF 3.2 MB |
| Attachment 2 EUT Detailed Photographs Internal Rev3 | Internal Photos | 2026-11-13 | PDF 741.2 KB |
| Attachment 2 EUT Detailed Photographs External Rev3 | External Photos | 2026-11-13 | PDF 822.5 KB |
| Label location | ID Label/Location Info | 2026-11-13 | PDF 124.1 KB |
| Label_part1_Rev1 | ID Label/Location Info | 2026-11-13 | PDF 391.6 KB |
| Label_part2_Rev1 | ID Label/Location Info | 2026-11-13 | PDF 390.3 KB |
| Attachment 1 EUT Test Photographs Rev3 | Test Setup Photos | 2026-11-13 | PDF 447.3 KB |
| Ant report Rev1 | Test Report | 2026-11-13 | PDF 860.5 KB |
| Antenna Declaration Letter Rev1 | Test Report | 2026-11-13 | PDF 124.9 KB |
| WD-RF-R-260194-A0, FCC_SRD 920M Rev3 | Test Report | 2026-11-13 | PDF 865.8 KB |
| 2AU4DDJ_ACB-FORM-FCC-Application-Letters-Supplement-to-Covered-List-Attestation | Attestation Statements | 2026-11-13 | PDF 118.9 KB |
| ACB-FORM-FCC-Application-Letters-Covered-List-Attestation | Attestation Statements | 2026-11-13 | PDF 189.9 KB |
| US Agent Letter for Service Rev2.pdf | Attestation Statements | 2026-11-13 | PDF 293.9 KB |
| 2AU4DDDJ_32919-ABA_Confidentiality-Letter Rev1 | Cover Letter(s) | 2026-11-13 | PDF 129.3 KB |
| Letters-Agency-Letter Rev1 | Cover Letter(s) | 2026-11-13 | PDF 136.5 KB |
| WD-RF-R-260194-B0, MPE Rev3 | RF Exposure Info | 2026-11-13 | PDF 413.5 KB |
| block Metadata only | Block Diagram | PDF 11.4 KB | |
| PCB Metadata only | Schematics | PDF 190.9 KB | |
| SCH Metadata only | Schematics | PDF 85.5 KB | |
| OD Rev1 Metadata only | Operational Description | PDF 152.9 KB |
Application Information
| Application ID | cQ7AhqN+I7gM6dyfB1N11w== |
|---|---|
| Final Action Date | 2026-11-13 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0028970382 |
| Model | DDJ |
| Frequency Range | 915.275 MHz |
| Equipment Class | DXX - Part 15 Low Power Communication Device Transmitter |
| Device Description | Smoke Alarm |
| Responsible Party | Sam Liang, zhihao.liang@x-sense.com , 755 2267 0560 |
| Technical Contact | Billy Li, Shenzhen UnionTrust Quality and Technology Co., Lt, billy.li@uttlab.com  , 86-755-28230888 |
| Non-Technical Contact | Sam Liang, X-SENSE USA LLC, service@x-sense.com , +1(833)952-1880 |
| Test Firm | George Luo, Shenzhen UnionTrust Quality and Technology Co., Lt, quality@uttlab.com , 86-755-28230888 |
| TCB Email | hotline@acbcert.com  |
| TCB Scope | A1: Low Power Transmitters below 1 GHz (except Spread Spectrum), Unintentional Radiators, EAS (Part 11) & Consumer ISM devices |
| Short-Term Confidentiality | No |
| Long-Term Confidentiality | Yes |
| Modular Equipment | Does not apply |
| Composite Device | No |
| Cognitive Radio | No |
| Authorization Waiver | No |
| Authorization Waiver Approved | No |
| Section 5301 Certification | Yes |
| Related OET Knowledge DataBase Inquiry | No |
Applications
| Application ID | Date | Purpose |
|---|---|---|
| cQ7AhqN+I7gM6dyfB1N11w== | 2026-11-13 | Original Equipment |
Equipment Authorization
| Frequency | Rules |
|---|---|
| 915.275 MHz | 15C |
Grants
TCB Grant - Application cQ7AhqN+I7gM6dyfB1N11w==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
ACB, Inc. 3060 Williams Drive Suite 300 #104 Fairfax, VA 22031 |
Date of Grant: 11/13/2026 Application Dated: 11/12/2026 |
| X-Sense Innovations Co., Ltd. |
| Room 1701, Block 3, Shenzhen International |
| Innovation Valley,Dashi 1st Road,Xili Community, |
| Xili Subdistrict, Nanshan District, Shenzhen,, 518055 China |
| Attention: Sam Liang , |
| 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: | 2AU4DDDJ |
| Name of Grantee: | X-Sense Innovations Co., Ltd. |
| Equipment Class: | Part 15 Low Power Communication Device Transmitter |
| Notes: | Smoke Alarm |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 915.275 - 915.275 |