FCC ID 2AYHY-WT401
Wireless Smart Thermostat
by Xiamen Milesight IoT Co., Ltd.
Grantee Code: 2AYHY Product Code: WT401
Latest application date: 2025-11-26
FCC ID Device Details
| FCC ID | 2AYHY-WT401 |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2AYHY |
| Product Code | WT401 |
| Applicant Business | Xiamen Milesight IoT Co., Ltd. 🇨🇳 |
| Related Domains |  ursalink.com |
| Equipment Class | Wireless Smart Thermostat |
| Test Firm | Bay Area Compliance Laboratories Corp. (Dongguan) |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 2402-2480 MHz | Original Equipment | 2025-11-26 |
| 902.3-927.6 MHz | Original Equipment | 2025-11-26 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User Manual | Users Manual | 2025-11-26 | PDF 1.5 MB |
| Internal Photos | Internal Photos | 2025-11-26 | PDF 2.2 MB |
| External Photos | External Photos | 2025-11-26 | PDF 1.1 MB |
| Label and Label Location | ID Label/Location Info | 2025-11-26 | PDF 2.6 MB |
| Test Setup Photos | Test Setup Photos | 2025-11-26 | PDF 756.2 KB |
| Test Setup Photos BLE | Test Setup Photos | 2025-11-26 | PDF 841.2 KB |
| Test Setup Photos LoRa | Test Setup Photos | 2025-11-26 | PDF 756.2 KB |
| Antenna Report | Test Report | 2025-11-26 | PDF 529.6 KB |
| Test Report | Test Report | 2025-11-26 | PDF 5.6 MB |
| Test Report BLE | Test Report | 2025-11-26 | PDF 1.9 MB |
| Test Report LoRa | Test Report | 2025-11-26 | PDF 4.4 MB |
| Attestation Letter | Cover Letter(s) | 2025-11-26 | PDF 128.4 KB |
| Attestation Letter-2.911(d)(5)(i)(ii) | Attestation Statements | 2025-11-26 | PDF 197.5 KB |
| US Agent Authorization Letter | Attestation Statements | 2025-11-26 | PDF 183.4 KB |
| Declaration of Similarity | Cover Letter(s) | 2025-11-26 | PDF 110.2 KB |
| FCC Agent Authorization Letter | Cover Letter(s) | 2025-11-26 | PDF 106 KB |
| FCC Confidential Authorization | Cover Letter(s) | 2025-11-26 | PDF 196.9 KB |
| RF Exposure | RF Exposure Info | 2025-11-26 | PDF 166.6 KB |
| RF Exposure Report | RF Exposure Info | 2025-11-26 | PDF 166.6 KB |
| Block Diagram Metadata only | Block Diagram | PDF 343.2 KB | |
| Schematics Metadata only | Schematics | PDF 574.9 KB | |
| Circuit Description Metadata only | Operational Description | PDF 341.4 KB |
Application Information
| Application ID | uJuZXLaV/lhIsFABWLeY3A== |
|---|---|
| Final Action Date | 2025-11-26 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0030310346 |
| Model | WT401 |
| Frequency Range | 2402-2480 MHz |
| Equipment Class | DTS - Digital Transmission System |
| Device Description | Wireless Smart Thermostat |
| Responsible Party | Zhenlong Tong, tongzl@ursalink.com , 0592-5023060 |
| Test Firm | David Zhang, Bay Area Compliance Laboratories Corp. (Dongguan), qa.dg@baclcorp.com  , 0086-769-8685-8891 |
| TCB Email | bacl.regulatory@baclcorp.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 |
|---|---|---|
| uJuZXLaV/lhIsFABWLeY3A== | 2025-11-26 | Original Equipment |
| 6oUDzuP5goA1scq5QdfNlQ== | 2025-11-26 | Original Equipment |
Equipment Authorization
Grants
TCB Grant - Application uJuZXLaV/lhIsFABWLeY3A==
| 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: 11/26/2025 Application Dated: 11/26/2025 |
| Xiamen Milesight IoT Co., Ltd. |
| Building C09, Software Park Phase III, |
| Xiamen 361024,Fujian,, China |
| Attention: Zhenlong Tong , Manager |
| 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: | 2AYHY-WT401 |
| Name of Grantee: | Xiamen Milesight IoT Co., Ltd. |
| Equipment Class: | Digital Transmission System |
| Notes: | Wireless Smart Thermostat |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 2402.0 - 2480.0 | 0.0019 | |||
| 15C | 903.0 - 926.9 | 0.0026 |
| Output power 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 must not be co-located or operating in conjunction with any other antenna or transmitter. Users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. |
TCB Grant - Application 6oUDzuP5goA1scq5QdfNlQ==
| 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: 11/26/2025 Application Dated: 11/26/2025 |
| Xiamen Milesight IoT Co., Ltd. |
| Building C09, Software Park Phase III, |
| Xiamen 361024,Fujian,, China |
| Attention: Zhenlong Tong , Manager |
| 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: | 2AYHY-WT401 |
| Name of Grantee: | Xiamen Milesight IoT Co., Ltd. |
| Equipment Class: | Part 15 Spread Spectrum Transmitter |
| Notes: | Wireless Smart Thermostat |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| 15C | 902.3 - 927.6 | 0.0026 |
| Output power 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 must not be co-located or operating in conjunction with any other antenna or transmitter. Users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. |