FCC ID 2BW7RLQ101
XIAO nRF52840 Sense/ XIAO nRF52840
by Longevity Quantified, Inc
Grantee Code: 2BW7R Product Code: LQ101
Latest application date: 2026-08-28
FCC ID Device Details
| FCC ID | 2BW7RLQ101 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2BW7R |
| Product Code | LQ101 |
| Applicant Business | Longevity Quantified, Inc 🇺🇸 |
| Equipment Class | XIAO nRF52840 Sense/ XIAO nRF52840 |
| Test Firm | Bay Area Compliance Laboratories Corp. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Class II permissive change or modification of presently authorized equipment | 2026-08-28 |
| 2402-2480 MHz | Change in identification of presently authorized equipment. Original FCC ID: Z4T-XIAONRF52840 Grant Date: 04/22/2022 | 2026-08-21 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| External Photos | External Photos | 2026-08-21 | PDF 376.8 KB |
| Label and label location | ID Label/Location Info | 2026-08-28 | PDF 418 KB |
| Label and Label Location | ID Label/Location Info | 2026-08-21 | PDF 229.1 KB |
| Antenna Specification | Test Report | 2026-08-28 | PDF 845.5 KB |
| Attestation Letter-2.911(d)(5)(i) | Attestation Statements | 2026-08-28 | PDF 152.4 KB |
| Attestation Letter-2.911(d)(5)(ii) | Attestation Statements | 2026-08-28 | PDF 153.6 KB |
| US Agent Attestation Letter | Attestation Statements | 2026-08-28 | PDF 108.4 KB |
| FCC Agent Authorization Letter | Cover Letter(s) | 2026-08-28 | PDF 158.8 KB |
| FCC Confidentiality Letter | Cover Letter(s) | 2026-08-28 | PDF 134.1 KB |
| Permissive Change Declaration Letter | Cover Letter(s) | 2026-08-28 | PDF 142.2 KB |
| Authorization Letter from Original Grantee | Cover Letter(s) | 2026-08-21 | PDF 762.1 KB |
| Change in ID Request Letter | Cover Letter(s) | 2026-08-21 | PDF 191.9 KB |
| RF Exposure Information | RF Exposure Info | 2026-08-28 | PDF 1.2 MB |
| User Manual Metadata only | Users Manual | 2027-02-24 | PDF 479.4 KB |
| Internal Photos Metadata only | Internal Photos | 2027-02-24 | PDF 470.5 KB |
| External Photos Metadata only | External Photos | 2027-02-24 | PDF 666.6 KB |
Application Information
| Application ID | 0eQ3aF4nQmYkibUc4ugx6w== |
|---|---|
| Final Action Date | 2026-08-28 |
| Application Purpose | Class II permissive change or modification of presently authorized equipment |
| Applicant FRN | 0038668661 |
| Model | LQ101 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DTS - Digital Transmission System |
| Device Description | XIAO nRF52840 Sense/ XIAO nRF52840 |
| Responsible Party | Indira Negi, indira.negi@gmail.com  , 408-250-4456 |
| Non-Technical Contact | Indira Negi, Longevity Quantified, Inc., longevityquantified@gmail.com , (408) 320-9867 |
| Test Firm | Lisa Tang, Bay Area Compliance Laboratories Corp., lisat@baclcorp.com  , 408-732-9162 |
| TCB Email | bacl.regulatory@baclcorp.com |
| TCB Scope | A4: UNII devices & low power transmitters using spread spectrum techniques |
| Short-Term Confidentiality | Yes |
| Long-Term Confidentiality | Yes |
| 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
| Application ID | Date | Purpose |
|---|---|---|
| 0eQ3aF4nQmYkibUc4ugx6w== | 2026-08-28 | Class II permissive change or modification of presently authorized equipment |
| bCAR4Yz7rnO7q1u3TKjG7w== | 2026-08-21 | Change in identification of presently authorized equipment. Original FCC ID: Z4T-XIAONRF52840 Grant Date: 04/22/2022 |
Equipment Authorization
| Frequency | Output | Rules |
|---|---|---|
| 2402-2480 MHz | 0.0032 | 15C |
Grants
TCB Grant - Application bCAR4Yz7rnO7q1u3TKjG7w==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Bay Area Compliance Laboratories Corp. 1274 Anvilwood Avenue Sunnyvale, CA 94089 |
Date of Grant: 08/21/2026 Application Dated: 08/21/2026 |
| Longevity Quantified, Inc |
| 50 Woodside Plz #829 |
| Redwood City, CA 94067 |
| Attention: Indira Negi , |
| 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: | 2BW7RLQ101 |
| Name of Grantee: | Longevity Quantified, Inc |
| Equipment Class: | Digital Transmission System |
| Notes: | XIAO nRF52840 Sense/ XIAO nRF52840 |
| Modular Type: | Single Modular |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0032 |
| Modular Approval. Power output listed is conducted. This module is approved for use only in the mobile configurations associated with this filing. This grant is valid only when the module is sold to OEM integrators and must be installed by the OEM or OEM integrators. Only those antenna(s) tested with the device or similar antenna(s) with equal or lesser gain may be used with this transmitter. The antenna(s) used for this transmitter must be installed 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. End-users may not be provided with the module installation instructions. Installation of this device into portable RF Exposure category host devices requires the submission of a Class II permissive change or new application. Compliance of this device in all final host configurations is the responsibility of the Grantee. |
TCB Grant - Application 0eQ3aF4nQmYkibUc4ugx6w==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Bay Area Compliance Laboratories Corp. 1274 Anvilwood Avenue Sunnyvale, CA 94089 |
Date of Grant: 08/28/2026 Application Dated: 08/28/2026 |
| Longevity Quantified, Inc |
| 50 Woodside Plz #829 |
| Redwood City, CA 94067 |
| Attention: Indira Negi , |
| 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: | 2BW7RLQ101 |
| Name of Grantee: | Longevity Quantified, Inc |
| Equipment Class: | Digital Transmission System |
| Notes: | XIAO nRF52840 Sense/ XIAO nRF52840 |
| Modular Type: | Single Modular |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0032 |
| Class II Permissive Change described in this filing to enable portable use. Modular Approval. Power output listed is conducted. This module is approved for use only in the mobile configurations associated with this filing. This grant is valid only when the module is sold to OEM integrators and must be installed by the OEM or OEM integrators. Only those antenna(s) tested with the device or similar antenna(s) with equal or lesser gain may be used with this transmitter. The antenna(s) used for this transmitter must be installed 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. End-users may not be provided with the module installation instructions. Installation of this device into portable RF Exposure category host devices requires the submission of a Class II permissive change or new application. Compliance of this device in all final host configurations is the responsibility of the Grantee. |