FCC ID 2AU4DDDQ
Radon Alarm
by X-Sense Innovations Co., Ltd.
Grantee Code: 2AU4D Product Code: DDQ
Latest application date: 2026-08-23
FCC ID Device Details
| FCC ID | 2AU4DDDQ |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2AU4D |
| Product Code | DDQ |
| Applicant Business | X-Sense Innovations Co., Ltd. 🇨🇳 |
| Related Domains |  x-sense.com |
| Equipment Class | Radon Alarm |
| Test Firm | Shenzhen UnionTrust Quality and Technology Co., Lt |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2026-08-23 |
| 2412-2462 MHz | Original Equipment | 2026-08-23 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| Manual Rev1 | Users Manual | 2026-08-23 | PDF 4.1 MB |
| 26061825496_Appendix 2_EUT Internal Photos REV2 | Internal Photos | 2026-08-23 | PDF 2.7 MB |
| 26061825496_Appendix 2_EUT External Photos | External Photos | 2026-08-23 | PDF 1.6 MB |
| Label | ID Label/Location Info | 2026-08-23 | PDF 757.6 KB |
| 26061825496_FCC Part 15C | Test Setup Photos | 2026-08-23 | PDF 572 KB |
| 26061825496RFC-1_EDR Report Rev1 | Test Report | 2026-08-23 | PDF 5.5 MB |
| 26061825496RFC-2_BLE Report Rev1 | Test Report | 2026-08-23 | PDF 3.1 MB |
| 26061825496RFC-3_Wi-Fi 11Channel Report_part1 REV3 | Test Report | 2026-08-23 | PDF 4.9 MB |
| 26061825496RFC-3_Wi-Fi 11Channel Report_part2 Rev1 | Test Report | 2026-08-23 | PDF 3 MB |
| antenna report | Test Report | 2026-08-23 | PDF 728.7 KB |
| ACB-FORM-FCC-Application-Letters-Covered-List-Attestation Rev1 | Attestation Statements | 2026-08-23 | PDF 153.9 KB |
| US AGENT REV2 | Attestation Statements | 2026-08-23 | PDF 188.4 KB |
| 2AU4DDDQ_Letters-Agency-Letter | Cover Letter(s) | 2026-08-23 | PDF 111.6 KB |
| Confidentiality-Letter Rev1 | Cover Letter(s) | 2026-08-23 | PDF 145.4 KB |
| 26061825496RFC-4_RF Exposure Rev1 | RF Exposure Info | 2026-08-23 | PDF 679.9 KB |
| BLOCK REV2 Metadata only | Block Diagram | PDF 212.5 KB | |
| SCH Metadata only | Schematics | PDF 445 KB | |
| SCH REV3 Metadata only | Schematics | PDF 315.1 KB | |
| XR0A-iR Perational Description REV2 Metadata only | Operational Description | PDF 143.3 KB |
Application Information
| Application ID | Z1AXKEMYcw/79BoIbPpBMA== |
|---|---|
| Final Action Date | 2026-08-23 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0028970382 |
| Model | DDQ |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DSS - Part 15 Spread Spectrum Transmitter |
| Device Description | Radon 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 |
|---|---|---|
| Z1AXKEMYcw/79BoIbPpBMA== | 2026-08-23 | Original Equipment |
| Qm9axVf7mU9tfDg9DoGidA== | 2026-08-23 | Original Equipment |
Equipment Authorization
Grants
TCB Grant - Application Z1AXKEMYcw/79BoIbPpBMA==
| 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: 08/23/2026 Application Dated: 08/20/2026 |
| 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: | 2AU4DDDQ |
| Name of Grantee: | X-Sense Innovations Co., Ltd. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Radon Alarm |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.00883 |
| 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 2.4G WLAN and BLE transmitters. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application Qm9axVf7mU9tfDg9DoGidA==
| 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: 08/23/2026 Application Dated: 08/20/2026 |
| 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: | 2AU4DDDQ |
| Name of Grantee: | X-Sense Innovations Co., Ltd. |
| Equipment Class: | Digital Transmission System |
| Notes: | Radon Alarm |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.00543 | ||
| CC | 15C | 2412.0 - 2462.0 | 0.13183 |
| 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 a Bluetooth transmitter. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |