FCC ID 2BRWEZ400TWP
Sleep Tracker
by KNIGHTAI TECH LIMITED
Grantee Code: 2BRWE Product Code: Z400TWP
Latest application date: 2025-11-18
FCC ID Device Details
| FCC ID | 2BRWEZ400TWP |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2BRWE |
| Product Code | Z400TWP |
| Applicant Business | KNIGHTAI TECH LIMITED |
| Related Domains | |
| Equipment Class | Sleep Tracker |
| Test Firm | Centre Testing International Group Co., Ltd |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2412-2462 MHz | Original Equipment | 2025-11-18 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User Manual | Users Manual | 2026-05-17 | PDF 4.4 MB |
| Internal Photos | Internal Photos | 2026-05-17 | PDF 1.3 MB |
| External Photos | External Photos | 2026-05-17 | PDF 939.9 KB |
| Label & Location | ID Label/Location Info | 2025-11-18 | PDF 333.1 KB |
| ANT Setup Photos | Test Setup Photos | 2026-05-17 | PDF 201.3 KB |
| Test Setup Photos | Test Setup Photos | 2026-05-17 | PDF 1.8 MB |
| ANT test report | Test Report | 2025-11-18 | PDF 413.9 KB |
| Part 15C 15.247 2.4G WI-FI report | Test Report | 2025-11-18 | PDF 2.3 MB |
| Part 15C 15.247 Bluetooth LE | Test Report | 2025-11-18 | PDF 3.6 MB |
| appendix 2.4G WIFI Part1 | Test Report | 2025-11-18 | PDF 4.7 MB |
| appendix 2.4G WIFI Part2 | Test Report | 2025-11-18 | PDF 4.7 MB |
| appendix 2.4G WIFI Part3 | Test Report | 2025-11-18 | PDF 1.5 MB |
| appendix Bluetooth LE | Test Report | 2025-11-18 | PDF 3 MB |
| Attestation Statements Part 2.911 i ii part1 | Attestation Statements | 2025-11-18 | PDF 245 KB |
| Attestation Statements Part 2.911 i ii part2 | Attestation Statements | 2025-11-18 | PDF 160.7 KB |
| Attestation Statements US agent for service | Attestation Statements | 2025-11-18 | PDF 326.6 KB |
| Confidentiality Letter | Cover Letter(s) | 2025-11-18 | PDF 293.6 KB |
| POA | Cover Letter(s) | 2025-11-18 | PDF 293.9 KB |
| SDoC Declatation Letter | Cover Letter(s) | 2025-11-18 | PDF 197.7 KB |
| difference declaration | Cover Letter(s) | 2025-11-18 | PDF 200.9 KB |
| Part 1 2 SAR exclusion report Metadata only | RF Exposure Info | 2025-11-18 | PDF 358.2 KB |
| Part 1 2 SAR exclusion report rev | RF Exposure Info | 2025-11-18 | PDF 519.5 KB |
| Block Diagram Metadata only | Block Diagram | PDF 297.2 KB | |
| SCH Metadata only | Schematics | PDF 1.3 MB | |
| Operational Description Metadata only | Operational Description | PDF 73.4 KB |
Application Information
| Application ID | fbdKZG20HArnv2npX1NHLQ== |
|---|---|
| Final Action Date | 2025-11-18 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0037443967 |
| Model | Z400TWP |
| Frequency Range | 2412-2462 MHz |
| Equipment Class | DTS - Digital Transmission System |
| Device Description | Sleep Tracker |
| Responsible Party | Jieling Cai, jollytsai@mambtech.com |
| Test Firm | Vicky Zhou, Centre Testing International Group Co., Ltd, zhoushuping@cti-cert.com |
| TCB Email | TEI@timcoengr.com |
| TCB Scope | A4: UNII devices & low power transmitters using spread spectrum techniques |
| Short-Term Confidentiality | Yes |
| 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 |
|---|---|---|
| fbdKZG20HArnv2npX1NHLQ== | 2025-11-18 | Original Equipment |
Grants
TCB Grant - Application fbdKZG20HArnv2npX1NHLQ==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| 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: 11/18/2025 Application Dated: 11/18/2025 |
| KNIGHTAI TECH LIMITED |
| RmS068, 2/F, The capilal, |
| 61-65 Chatham Road, South |
| Tsim Sha Tsui, Hong Kong |
| Attention: Jieling Cai , PM |
| 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: | 2BRWEZ400TWP |
| Name of Grantee: | KNIGHTAI TECH LIMITED |
| Equipment Class: | Digital Transmission System |
| Notes: | Sleep Tracker |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0013 | |||
| 15C | 2412.0 - 2462.0 | 0.023 |
| 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. End-users must be informed of operating requirements for satisfying RF exposure compliance. This device supports 20 and 40 MHz bandwidth modes. |