FCC ID 2AU4DDDB
Carbon Monoxide Alarm
by X-Sense Innovations Co., Ltd.
Grantee Code: 2AU4D Product Code: DDB
Latest application date: 2026-01-12
FCC ID Device Details
| FCC ID | 2AU4DDDB |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2AU4D |
| Product Code | DDB |
| Applicant Business | X-Sense Innovations Co., Ltd. 🇨🇳 |
| Related Domains |  x-sense.com |
| Equipment Class | Carbon Monoxide Alarm |
| Test Firm | Shenzhen UnionTrust Quality and Technology Co., Lt |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-01-12 |
| 2412-2462 MHz | Original Equipment | 2026-01-12 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User manual | Users Manual | 2026-01-12 | PDF 2.5 MB |
| 25112120918_Appendix 2_EUT Internal Photos_REV2 | Internal Photos | 2026-01-12 | PDF 2.3 MB |
| 25112120918_Appendix 2_EUT External Photos | External Photos | 2026-01-12 | PDF 1.3 MB |
| Label | ID Label/Location Info | 2026-01-12 | PDF 540.2 KB |
| 25112120918_APPENDIX 1_TEST SETUP_FCC Part 15C | Test Setup Photos | 2026-01-12 | PDF 481.6 KB |
| 25112120918RFC-1_EDR Report_Rev1 Metadata only | Test Report | 2026-01-12 | PDF 4.7 MB |
| 25112120918RFC-1_EDR Report_Rev3 | Test Report | 2026-01-12 | PDF 4.8 MB |
| 25112120918RFC-2_BLE Report_Rev1 Metadata only | Test Report | 2026-01-12 | PDF 2.7 MB |
| 25112120918RFC-2_BLE Report_Rev3 | Test Report | 2026-01-12 | PDF 2.7 MB |
| 25112120918RFC-3_Wi-Fi 11Channel Report_Part 1_Rev1 | Test Report | 2026-01-12 | PDF 3.4 MB |
| 25112120918RFC-3_Wi-Fi 11Channel Report_Part 2_Rev1 | Test Report | 2026-01-12 | PDF 2.9 MB |
| Antenna report | Test Report | 2026-01-12 | PDF 728.7 KB |
| ACB-FORM-FCC-Application-Letters-Covered-List-Attestation | Attestation Statements | 2026-01-12 | PDF 149.8 KB |
| US Agent Designation | Attestation Statements | 2026-01-12 | PDF 147.1 KB |
| 2AU4DDDB_32919-AAR_Confidentiality-Letter | Cover Letter(s) | 2026-01-12 | PDF 141.5 KB |
| 2AU4DDDB_Letters-Agency-Letter | Cover Letter(s) | 2026-01-12 | PDF 105 KB |
| 25112120918RFC-4_MPE REPORT_Rev1 | RF Exposure Info | 2026-01-12 | PDF 752.2 KB |
| XC0M-iR-BLOCK Metadata only | Block Diagram | PDF 18.8 KB | |
| SCH_WiFi module Metadata only | Schematics | PDF 270.5 KB | |
| XC0M-iR-SCH Metadata only | Schematics | PDF 103.7 KB | |
| XC0M-iR perational Description Metadata only | Operational Description | PDF 587.7 KB |
Application Information
| Application ID | te34oykp/Y2n6GB1RwCDbQ== |
|---|---|
| Final Action Date | 2026-01-12 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0028970382 |
| Model | DDB |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | Carbon Monoxide 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  , 075528230888 |
| 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 | A4: UNII devices & low power transmitters using spread spectrum techniques |
| Short-Term Confidentiality | No |
| Long-Term Confidentiality | Yes |
| 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
| Application ID | Date | Purpose |
|---|---|---|
| te34oykp/Y2n6GB1RwCDbQ== | 2026-01-12 | Original Equipment |
| QBG806RJcR9R8ynJCg7kBA== | 2026-01-12 | Original Equipment |
Equipment Authorization
Grants
TCB Grant - Application te34oykp/Y2n6GB1RwCDbQ==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
ACB, Inc. 313 Park Avenue Suite 300 Falls Church, VA 22046 |
Date of Grant: 01/12/2026 Application Dated: 01/09/2026 |
| 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: | 2AU4DDDB |
| Name of Grantee: | X-Sense Innovations Co., Ltd. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Carbon Monoxide Alarm |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.00641 |
| Power Output listed is conducted. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and not be co-located with any other transmitters except in accordance with FCC multi-transmitter product procedures. End-users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. This device also contains 2.4GHz WLAN and BLE transmitters. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application QBG806RJcR9R8ynJCg7kBA==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
ACB, Inc. 313 Park Avenue Suite 300 Falls Church, VA 22046 |
Date of Grant: 01/12/2026 Application Dated: 01/09/2026 |
| 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: | 2AU4DDDB |
| Name of Grantee: | X-Sense Innovations Co., Ltd. |
| Equipment Class: | Digital Transmission System |
| Notes: | Carbon Monoxide Alarm |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.00354 | ||
| CC | 15C | 2412.0 - 2462.0 | 0.07745 |
| Power Output listed is conducted. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and not be co-located with any other transmitters except in accordance with FCC multi-transmitter product procedures. End-users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. This device has 20 MHz and 40 MHz bandwidth modes in 2.4GHz WLAN transmitter and it also contains Bluetooth transmitter. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |